MT8809 8x8 Analog Switch Array

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ISO-CMOS MT889 8x8 Analog Switch Array Features Internal control latches and address decoder Short setup and hold times Wide operating voltage: 4.5 V to 3.2 V 2 Vpp analog signal capability R ON 65 max. @ V DD = 2 V, 25 C R ON @ V DD = 2 V, 25C Full CMOS switch for low distortion Minimum feedthrough and crosstalk Low power consumption ISO-CMOS technology Internal pull-up resistor for RESET pin Applications Key systems PBX systems Mobile radio Test equipment/instrumentation Analog/digital multiplexers Audio/Video switching Description Ordering Information September 2 MT889AP 28 Pin PLCC* Tubes MT889APR 28 Pin PLCC* Tape & Reel MT889AE 28 Pin PDIP* Tubes * Pb Free Matte Tin -4 C to +85 C The Zarlink MT889 is fabricated in Zarlink s ISO- CMOS technology providing low power dissipation and high reliability. The device contains a 8 x 8 array of crosspoint switches along with a 6 to 64 line decoder and latch circuits. Any one of the 64 switches can be addressed by selecting the appropriate six address bits. The selected switch can be turned on or off by applying a logical one or zero to the DATA input. Chip Select (CS) allows the crosspoint array to be cascaded for matrix expansion. CS STROBE DATA RESET VDD VSS AX AX AX2 AY AY 6 to 64 Decoder Latches 8 x 8 Switch Array Xi I/O (i=-7) AY2 64 64 Yi I/O (i=-7) Figure - Functional Block Diagram Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Copyright 988-2, All Rights Reserved.

Y6 Y5 Y4 Y3 Y2 Y Y MT889 Change Summary Changes from the September 25 issue to the September 2 issue. Page Item Change Ordering Information Removed leaded packages as per PCN notice. AY2 STROBE CS DATA VSS X X2 X4 X6 RESET Y7 Y6 Y5 Y4 28 2 27 3 26 4 25 5 24 6 23 7 22 8 2 9 2 9 8 2 7 3 6 4 5 AY AY AX2 AX AX X X3 X5 X7 VDD Y Y Y2 Y3 VSS X X2 X4 X6 RESET Y7 DATA 5 6 7 8 9 4 CS STROBE AY2 AY AY AX2 3 2 28 27 26 2 3 4 5 6 7 8 25 24 23 22 2 2 9 AX AX X X3 X5 X7 VDD 28 PIN PLASTIC DIP 28 PIN PLCC Figure 2 - Pin Connections Pin Description Pin # Name Description AY2 AY2 Address Line (Input). 2 STROBE STROBE (Input): enables function selected by address and data. Address must be stable before STROBE goes low and DATA must be stable on the rising edge of STROBE. Active Low. 3 CS Chip Select (Input): this is used to select the device. Active Low. 4 DATA DATA (Input): a logic high input will turn on the selected switch and a logic low will turn off the selected switch. Active High. 5 V SS Ground Reference. 6-9 X, X2, X4, X6 X, X2, X4 and X6 Analog (Inputs/Outputs): these are connected to the X, X2, X4 and X6 rows of the switch array. RESET Master RESET (Input): this is used to turn off all switches regardless of the condition of CS. A k internal pull-up resistor is also provided. This can be used in conjunction with a. F capacitor (connected to the RESET pin) to perform power-on reset of the device. Active Low. -8 Y7 - Y Y7 - Y Analog (Inputs/Outputs): these are connected to the Y - Y7 columns of the switch array. 2

MT889 Pin Description Pin # Name Description 9 V DD Positive Power Supply. 2-23 X7, X5, X3, X Functional Description The MT889 is an analog switch matrix with an array size of 8 x 8. The switch array is arranged such that there are 8 columns by 8 rows. The columns are referred to as the Y inputs/outputs and the rows are the X inputs/outputs. The crosspoint analog switch array will interconnect any X I/O with any Y I/O when turned on and provide a high degree of isolation when turned off. The control memory consists of a 64 bit write only RAM in which the bits are selected by the address inputs (AY-AY2, AX-AX2). Data is presented to the memory on the DATA input. Data is asynchronously written into memory whenever both the CS (Chip Select) and STROBE inputs are low and are latched on the rising edge of STROBE. A logical written into a memory cell turns the corresponding crosspoint switch on and a logical turns the crosspoint off. Only the crosspoint switches corresponding to the addressed memory location are altered when data is written into memory. The remaining switches retain their previous states. Any combination of X and Y inputs/outputs can be interconnected by establishing appropriate patterns in the control memory. A logical on the RESET input will asynchronously return all memory locations to logical turning off all crosspoint switches regardless of whether CS is high or low. Address Decode X7, X5, X3 and X Analog (Inputs/Outputs): these are connected to the X7, X5, X3 and X rows of the switch array. 24-26 AX-AX2 AX - AX2 Address Lines (Inputs). 27, 28 AY, AY AY and AY Address Lines (Inputs). The six address inputs along with the STROBE and CS (Chip Select) are logically ANDed to form an enable signal for the resettable transparent latches. The DATA input is buffered and is used as the input to all latches. To write to a location, RESET must be high and CS must go low while the address and data are set up. Then the STROBE input is set low and then high causing the data to be latched. The data can be changed while STROBE is low, however, the corresponding switch will turn on and off in accordance with the DATA input. DATA must be stable on the rising edge of STROBE in order for correct data to be written to the latch. 3

MT889 Absolute Maximum Ratings*- Voltages are with respect to V SS unless otherwise stated. Parameter Symbol Min. Max. Units Supply Voltage V DD -.3 V SS -.3 * Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied. 5. V DD +.3 2 Analog Input Voltage V INA -.3 V DD +.3 V 3 Digital Input Voltage V IN V SS -.3 V DD +.3 V 4 Current on any I/O Pin I 5 ma 5 Storage Temperature T S -65 +5 C 6 Package Power Dissipation PLASTIC DIP P D.6 W V V Recommended Operating Conditions - Voltages are with respect to V SS unless otherwise stated. Characteristics Sym. Min. Typ. Max. Units Test Conditions Operating Temperature T O -4 25 85 C 2 Supply Voltage V DD 4.5 3.2 V 3 Analog Input Voltage V INA V SS V DD V 4 Digital Input Voltage V IN V SS V DD V DC Electrical Characteristics - Voltages are with respect to V SS = V, V DD = 2 V unless otherwise stated. Characteristics Sym. Min. Typ. Max. Units Test Conditions Quiescent Supply Current I DD A All digital inputs at V IN = V SS V DD except RESET = V DD. 2 Off-state Leakage Current (See G.9 in Appendix) 2 4 A All digital inputs at V IN = V SS or V DD except RESET = V SS..5.6 ma All digital inputs at V IN = 2.4 V, V DD = 5. V 5 5 ma All digital inputs at V IN = 3.4 V I OFF 5 na IV Xi - V Yj I = V DD - V SS See Appendix, Fig. A. 3 Input Logic level V IL.8 V 4 Input Logic level V IH 3. V 6 Input Leakage (digital pins) I LEAK. A All digital inputs at V IN = V SS or V DD; RESET = V DD DC Electrical Characteristics are over recommended temperature range. Typical figures are at 25 C and are for design aid only; not guaranteed and not subject to production testing. 4

MT889 DC Electrical Characteristics- Switch Resistance - V DC is the external DC offset applied at the analog I/O pins. Characteristics Sym. 25 C 7 C 85 C Units Test Conditions Typ. Max. Typ. Max. Typ. Max. On-state V DD =2 V ResistanceV DD =V V DD = 5V (See G., G.2, G.3 in Appendix) 2 Difference in on-state resistance between two switches (See G.4 in Appendix) R ON 45 55 2 R O N 65 75 85 75 85 25 8 9 225 V SS = V,V DC = V DD /2, IV Xi -V Yj I =.4 V See Appendix, Fig. A.2 5 V DD = 2 V, V SS =, V DC = V DD /2, IV Xi -V Yj I =.4 V See Appendix, Fig. A.2 AC Electrical Characteristics - Crosspoint Performance- V DC is the external DC offset at the analog I/O pins. Voltages are with respect to V DD = 5 V, V DC = V, V SS = -7 V, unless otherwise stated. Characteristics Sym. Min. Typ. Max. Units Test Conditions Switch I/O Capacitance C S 2 pf f = MHz 2 Feedthrough Capacitance C F.2 pf f = MHz 3 Frequency Response Channel ON 2LOG(V OUT /V Xi )=-3 db 4 Total Harmonic Distortion (See G.5, G.6 in Appendix) 5 Feedthrough Channel OFF Feed.=2LOG (V OUT /V Xi ) (See G.8 in Appendix) 6 Crosstalk between any two channels for switches Xi-Yi and Xj-Yj. Xtalk=2LOG (V Yj /V Xi ). (See G.7 in Appendix). 7 Propagation delay through switch F 3dB 45 MHz Switch is ON ; V INA = 2 Vpp sinewave; R L = k See Appendix, Fig. A.3 THD. % Switch is ON ; V INA = 2 Vpp sinewave f = khz; R L = k FDT -95 db All Switches OFF ; V INA = 2Vpp sinewave f = khz; R L = k. See Appendix, Fig. A.4 X talk -45 db V INA = 2Vpp sinewave f = MHz; R L = 75. -9 db V INA = 2Vpp sinewave f = khz; R L = 6. -85 db V INA =2Vpp sinewave f = khz; R L = k. -8 db V INA = 2Vpp sinewave f = khz; R L = k. Refer to Appendix, Fig. A.5 for test circuit. t PS 3 ns R L = k ; C L = 5 pf Timing is over recommended temperature range. See Fig. 3 for control and I/O timing details. Typical figures are at 25 C and are for design aid only; not guaranteed and not subject to production testing. Crosstalk measurements are for Plastic DIPS only, crosstalk values for PLCC packages are approximately 5 db better. 5

MT889 AC Electrical Characteristics - Control and I/O Timings- V DC is the external DC offset applied at the analog I/O pins. Voltages are with respect to V DD = 5 V, V DC = V, V SS = -7 V, unless otherwise stated. Characteristics Sym. Min. Typ. Max. Units Test Conditions Control Input crosstalk to switch (for CS, DATA, STROBE, Address) CX talk 3 mvpp V IN =3V+V DC squarewave; R IN = k, R L = k. See Appendix, Fig. A.6 2 Digital Input Capacitance C DI pf f = MHz 3 Switching Frequency F O 2 MHz 4 Setup Time DATA to STROBE t DS ns R L = k, C L = 5 pf Å 5 Hold Time DATA to STROBE t DH ns R L = k, C L = 5 pf Å 6 Setup Time Address to STROBE t AS ns R L = k, C L = 5 pf Å 7 Hold Time Address to STROBE t AH ns R L = k, C L = 5 pf Å 8 Setup Time CS to STROBE t CSS ns R L = k, C L = 5 pf Å 9 Hold Time CS to STROBE t CSH ns R L = k, C L = 5 pf Å STROBE Pulse Width t SPW 2 ns R L = k, C L = 5 pf Å RESET Pulse Width t RPW 4 ns R L = k, C L = 5 pf Å 2 STROBE to Switch Status Delay t S 4 ns R L = k, C L =5 pf Å 3 DATA to Switch Status Delay t D 5 ns R L = k, C L = 5 pf Å 4 RESET to Switch Status Delay t R 35 ns R L = k, C L = 5 pf Å Timing is over recommended temperature range. See Fig. 3 for control and I/O timing details. Digital Input rise time (tr) and fall time (tf) = 5 ns. Typical figures are at 25 C and are for design aid only; not guaranteed and not subject to production testing. Å Refer to Appendix, Fig. A.7 for test circuit. t CSS t CSH CS 5% 5% RESET STROBE t SPW 5% 5% 5% t RPW 5% 5% ADDRESS 5% 5% t AS tah DATA 5% 5% t DS tdh ON SWITCH* OFF * See Appendix, Fig. A.7 for switching waveform t D t S t R t R Figure 3 - Control Memory Timing Diagram 6

MT889 7 Table - Address Decode Truth Table AY2 AY AY AX2 AX AX Connection AY2 AY AY AX2 AX AX Connection X Y X Y X2 Y X3 Y X4 Y X5 Y X6 Y X7 Y X Y4 X Y4 X2 Y4 X3 Y4 X4 Y4 X5 Y4 X6 Y4 X7 Y4 X Y X Y X2 Y X3 Y X4 Y X5 Y X6 Y X7 Y X Y5 X Y5 X2 Y5 X3 Y5 X4 Y5 X5 Y5 X6 Y5 X7 Y5 X Y2 X Y2 X2 Y2 X3 Y2 X4 Y2 X5 Y2 X6 Y2 X7 Y2 X Y6 X Y6 X2 Y6 X3 Y6 X4 Y6 X5 Y6 X6 Y6 X7 Y6 X Y3 X Y3 X2 Y3 X3 Y3 X4 Y3 X5 Y3 X6 Y3 X7 Y3 X Y7 X Y7 X2 Y7 X3 Y7 X4 Y7 X5 Y7 X6 Y7 X7 Y7

ISO-CMOS MT889 8x8 Analog Switch Array Features Internal control latches and address decoder Short setup and hold times Wide operating voltage: 4.5 V to 3.2 V 2 Vpp analog signal capability R ON 65 Ω max. @ V DD = 2 V, 25 C R ON Ω @ V DD = 2 V, 25C Full CMOS switch for low distortion Minimum feedthrough and crosstalk Low power consumption ISO-CMOS technology Internal pull-up resistor for RESET pin Applications Key systems PBX systems Mobile radio Test equipment/instrumentation Analog/digital multiplexers Audio/Video switching Description Ordering Information September 25 MT889AE 28 Pin PDIP Tubes MT889AP 28 Pin PLCC Tubes MT889APR 28 Pin PLCC Tape & Reel MT889AP 28 Pin PLCC* Tubes MT889APR 28 Pin PLCC* Tape & Reel MT889AE 28 Pin PDIP* Tubes * Pb Free Matte Tin -4 C to +85 C The Zarlink MT889 is fabricated in Zarlink s ISO- CMOS technology providing low power dissipation and high reliability. The device contains a 8 x 8 array of crosspoint switches along with a 6 to 64 line decoder and latch circuits. Any one of the 64 switches can be addressed by selecting the appropriate six address bits. The selected switch can be turned on or off by applying a logical one or zero to the DATA input. Chip Select (CS) allows the crosspoint array to be cascaded for matrix expansion. CS STROBE DATA RESET VDD VSS AX AX AX2 AY AY 6 to 64 Decoder Latches 8 x 8 Switch Array Xi I/O (i=-7) AY2 64 64 Yi I/O (i=-7) Figure - Functional Block Diagram Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Copyright 988-25, All Rights Reserved.

Y6 Y5 Y4 Y3 Y2 Y Y MT889 AY2 STROBE CS DATA VSS X X2 X4 X6 RESET Y7 Y6 Y5 Y4 28 2 27 3 26 4 25 5 24 6 23 7 22 8 2 9 2 9 8 2 7 3 6 4 5 AY AY AX2 AX AX X X3 X5 X7 VDD Y Y Y2 Y3 VSS X X2 X4 X6 RESET Y7 DATA 5 6 7 8 9 4 CS STROBE AY2 AY AY AX2 3 2 28 27 26 2 3 4 5 6 7 8 25 24 23 22 2 2 9 AX AX X X3 X5 X7 VDD 28 PIN PLASTIC DIP 28 PIN PLCC Figure 2 - Pin Connections Pin Description Pin # Name Description AY2 AY2 Address Line (Input). 2 STROBE STROBE (Input): enables function selected by address and data. Address must be stable before STROBE goes low and DATA must be stable on the rising edge of STROBE. Active Low. 3 CS Chip Select (Input): this is used to select the device. Active Low. 4 DATA DATA (Input): a logic high input will turn on the selected switch and a logic low will turn off the selected switch. Active High. 5 V SS Ground Reference. 6-9 X, X2, X4, X6 X, X2, X4 and X6 Analog (Inputs/Outputs): these are connected to the X, X2, X4 and X6 rows of the switch array. RESET Master RESET (Input): this is used to turn off all switches regardless of the condition of CS. A kω internal pull-up resistor is also provided. This can be used in conjunction with a. µf capacitor (connected to the RESET pin) to perform power-on reset of the device. Active Low. -8 Y7 - Y Y7 - Y Analog (Inputs/Outputs): these are connected to the Y - Y7 columns of the switch array. 9 V DD Positive Power Supply. 2-23 X7, X5, X3, X X7, X5, X3 and X Analog (Inputs/Outputs): these are connected to the X7, X5, X3 and X rows of the switch array. 24-26 AX-AX2 AX - AX2 Address Lines (Inputs). 27, 28 AY, AY AY and AY Address Lines (Inputs). 2

MT889 Functional Description The MT889 is an analog switch matrix with an array size of 8 x 8. The switch array is arranged such that there are 8 columns by 8 rows. The columns are referred to as the Y inputs/outputs and the rows are the X inputs/outputs. The crosspoint analog switch array will interconnect any X I/O with any Y I/O when turned on and provide a high degree of isolation when turned off. The control memory consists of a 64 bit write only RAM in which the bits are selected by the address inputs (AY-AY2, AX-AX2). Data is presented to the memory on the DATA input. Data is asynchronously written into memory whenever both the CS (Chip Select) and STROBE inputs are low and are latched on the rising edge of STROBE. A logical written into a memory cell turns the corresponding crosspoint switch on and a logical turns the crosspoint off. Only the crosspoint switches corresponding to the addressed memory location are altered when data is written into memory. The remaining switches retain their previous states. Any combination of X and Y inputs/outputs can be interconnected by establishing appropriate patterns in the control memory. A logical on the RESET input will asynchronously return all memory locations to logical turning off all crosspoint switches regardless of whether CS is high or low. Address Decode The six address inputs along with the STROBE and CS (Chip Select) are logically ANDed to form an enable signal for the resettable transparent latches. The DATA input is buffered and is used as the input to all latches. To write to a location, RESET must be high and CS must go low while the address and data are set up. Then the STROBE input is set low and then high causing the data to be latched. The data can be changed while STROBE is low, however, the corresponding switch will turn on and off in accordance with the DATA input. DATA must be stable on the rising edge of STROBE in order for correct data to be written to the latch. 3

MT889 Absolute Maximum Ratings*- Voltages are with respect to V SS unless otherwise stated. Parameter Symbol Min. Max. Units Supply Voltage V DD -.3 V SS -.3 * Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied. 5. V DD +.3 2 Analog Input Voltage V INA -.3 V DD +.3 V 3 Digital Input Voltage V IN V SS -.3 V DD +.3 V 4 Current on any I/O Pin I ±5 ma 5 Storage Temperature T S -65 +5 C 6 Package Power Dissipation PLASTIC DIP P D.6 W V V Recommended Operating Conditions - Voltages are with respect to V SS unless otherwise stated. Characteristics Sym. Min. Typ. Max. Units Test Conditions Operating Temperature T O -4 25 85 C 2 Supply Voltage V DD 4.5 3.2 V 3 Analog Input Voltage V INA V SS V DD V 4 Digital Input Voltage V IN V SS V DD V DC Electrical Characteristics - Voltages are with respect to V SS = V, V DD = 2 V unless otherwise stated. Characteristics Sym. Min. Typ. Max. Units Test Conditions Quiescent Supply Current I DD µa All digital inputs at V IN = V SS V DD except RESET = V DD. 2 Off-state Leakage Current (See G.9 in Appendix) 2 4 µa All digital inputs at V IN = V SS or V DD except RESET = V SS..5.6 ma All digital inputs at V IN = 2.4 V, V DD = 5. V 5 5 ma All digital inputs at V IN = 3.4 V I OFF ± ±5 na IV Xi - V Yj I = V DD - V SS See Appendix, Fig. A. 3 Input Logic level V IL.8 V 4 Input Logic level V IH 3. V 6 Input Leakage (digital pins) I LEAK. µa All digital inputs at V IN = V SS or V DD; RESET = V DD DC Electrical Characteristics are over recommended temperature range. Typical figures are at 25 C and are for design aid only; not guaranteed and not subject to production testing. 4

MT889 DC Electrical Characteristics- Switch Resistance - V DC is the external DC offset applied at the analog I/O pins. Characteristics Sym. 25 C 7 C 85 C Units Test Conditions Typ. Max. Typ. Max. Typ. Max. On-state V DD =2 V ResistanceV DD =V V DD = 5V (See G., G.2, G.3 in Appendix) 2 Difference in on-state resistance between two switches (See G.4 in Appendix) R ON 45 55 2 R O N 65 75 85 75 85 25 8 9 225 Ω Ω Ω V SS = V,V DC = V DD /2, IV Xi -V Yj I =.4 V See Appendix, Fig. A.2 5 Ω V DD = 2 V, V SS =, V DC = V DD /2, IV Xi -V Yj I =.4 V See Appendix, Fig. A.2 AC Electrical Characteristics - Crosspoint Performance- V DC is the external DC offset at the analog I/O pins. Voltages are with respect to V DD = 5 V, V DC = V, V SS = -7 V, unless otherwise stated. Characteristics Sym. Min. Typ. Max. Units Test Conditions Switch I/O Capacitance C S 2 pf f = MHz 2 Feedthrough Capacitance C F.2 pf f = MHz 3 Frequency Response Channel ON 2LOG(V OUT /V Xi )=-3 db 4 Total Harmonic Distortion (See G.5, G.6 in Appendix) 5 Feedthrough Channel OFF Feed.=2LOG (V OUT /V Xi ) (See G.8 in Appendix) 6 Crosstalk between any two channels for switches Xi-Yi and Xj-Yj. Xtalk=2LOG (V Yj /V Xi ). (See G.7 in Appendix). 7 Propagation delay through switch F 3dB 45 MHz Switch is ON ; V INA = 2 Vpp sinewave; R L = kω See Appendix, Fig. A.3 THD. % Switch is ON ; V INA = 2 Vpp sinewave f = khz; R L = kω FDT -95 db All Switches OFF ; V INA = 2Vpp sinewave f = khz; R L = kω. See Appendix, Fig. A.4 X talk -45 db V INA = 2Vpp sinewave f = MHz; R L = 75 Ω. -9 db V INA = 2Vpp sinewave f = khz; R L = 6 Ω. -85 db V INA =2Vpp sinewave f = khz; R L = kω. -8 db V INA = 2Vpp sinewave f = khz; R L = kω. Refer to Appendix, Fig. A.5 for test circuit. t PS 3 ns R L = kω; C L = 5 pf Timing is over recommended temperature range. See Fig. 3 for control and I/O timing details. Typical figures are at 25 C and are for design aid only; not guaranteed and not subject to production testing. Crosstalk measurements are for Plastic DIPS only, crosstalk values for PLCC packages are approximately 5 db better. 5

MT889 AC Electrical Characteristics - Control and I/O Timings- V DC is the external DC offset applied at the analog I/O pins. Voltages are with respect to V DD = 5 V, V DC = V, V SS = -7 V, unless otherwise stated. Characteristics Sym. Min. Typ. Max. Units Test Conditions Control Input crosstalk to switch (for CS, DATA, STROBE, Address) CX talk 3 mvpp V IN =3V+V DC squarewave; R IN = kω, R L = kω. See Appendix, Fig. A.6 2 Digital Input Capacitance C DI pf f = MHz 3 Switching Frequency F O 2 MHz 4 Setup Time DATA to STROBE t DS ns R L = kω, C L = 5 pf Å 5 Hold Time DATA to STROBE t DH ns R L = kω, C L = 5 pf Å 6 Setup Time Address to STROBE t AS ns R L = kω, C L = 5 pf Å 7 Hold Time Address to STROBE t AH ns R L = kω, C L = 5 pf Å 8 Setup Time CS to STROBE t CSS ns R L = kω, C L = 5 pf Å 9 Hold Time CS to STROBE t CSH ns R L = kω, C L = 5 pf Å STROBE Pulse Width t SPW 2 ns R L = kω, C L = 5 pf Å RESET Pulse Width t RPW 4 ns R L = kω, C L = 5 pf Å 2 STROBE to Switch Status Delay t S 4 ns R L = kω, C L =5 pf Å 3 DATA to Switch Status Delay t D 5 ns R L = kω, C L = 5 pf Å 4 RESET to Switch Status Delay t R 35 ns R L = kω, C L = 5 pf Å Timing is over recommended temperature range. See Fig. 3 for control and I/O timing details. Digital Input rise time (tr) and fall time (tf) = 5 ns. Typical figures are at 25 C and are for design aid only; not guaranteed and not subject to production testing. Å Refer to Appendix, Fig. A.7 for test circuit. t CSS t CSH CS 5% 5% RESET STROBE t SPW 5% 5% 5% t RPW 5% 5% ADDRESS 5% 5% t AS tah DATA 5% 5% t DS tdh ON SWITCH* OFF * See Appendix, Fig. A.7 for switching waveform t D t S t R t R Figure 3 - Control Memory Timing Diagram 6

MT889 7 Table - Address Decode Truth Table AY2 AY AY AX2 AX AX Connection AY2 AY AY AX2 AX AX Connection X Y X Y X2 Y X3 Y X4 Y X5 Y X6 Y X7 Y X Y4 X Y4 X2 Y4 X3 Y4 X4 Y4 X5 Y4 X6 Y4 X7 Y4 X Y X Y X2 Y X3 Y X4 Y X5 Y X6 Y X7 Y X Y5 X Y5 X2 Y5 X3 Y5 X4 Y5 X5 Y5 X6 Y5 X7 Y5 X Y2 X Y2 X2 Y2 X3 Y2 X4 Y2 X5 Y2 X6 Y2 X7 Y2 X Y6 X Y6 X2 Y6 X3 Y6 X4 Y6 X5 Y6 X6 Y6 X7 Y6 X Y3 X Y3 X2 Y3 X3 Y3 X4 Y3 X5 Y3 X6 Y3 X7 Y3 X Y7 X Y7 X2 Y7 X3 Y7 X4 Y7 X5 Y7 X6 Y7 X7 Y7

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