2-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing and ±15kV ESD Protection

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1 2-Bit Bidirectional oltage-level Tralator with Auto Direction Seing and ±15k ESD Protection UM3302H CSP UM3302Q QFN General Description The UM3302, an ESD protected level tralator, provides the level shifting necessary to allow data trafer in multi-voltage system. This 2-channel non-inverting tralator uses two separate configurable power-supply rails. The A port is designed to track CCA. CCA accepts any supply voltage from 1.2 to 3.6. The B port is designed to track CCB. CCB accepts any supply voltage from 1.65 to 5.5. This allows for universal low-voltage bidirectional tralation between any of the 1.2, 1.5, 1.8, 2.5, 3.3, and 5 voltage nodes. Both I/O ports are auto-seing; thus, no direction pin is required, making it ideal for data trafer between low-voltage ASICs /PLDs and higher voltage systems. The UM3302 operates at a guaranteed data rate of 20Mbps over the entire specified operating voltage range. Within specific voltage domai, higher data rates are up to 100Mbps. When the output-enable () input is low, all outputs are placed in the high-impedance state. The UM3302 is designed so that the input circuit is designed to track CCA. To eure the high-impedance state during power up or power down, should be tied to GND through a pull down resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. The UM3302H is a dual channel level tralator available in 1.90mm 0.90mm CSP8 bump package while UM3302Q is available in 1.40mm 1.20mm QFN8 package. Applicatio Low-oltage ASIC Level Tralation Cell-Phone Cradles Portable POS Systems Portable Communication Devices Low-Cost Serial Interfaces Cell-Phones GPS Telecommunicatio Equipment Pin Configuratio Features 1.2 to 3.6 on A Port and 1.65 to 5.5 on B Port ( CCA CCB ) CC Isolation Feature If Either CC Input is at GND, All Outputs are in the High-Impedance State Input Circuit Referenced to CCA Low Power Coumption Latch-Up Performance Exceeds 100mA ±15k ESD Protection on B Ports Top iew (Top iew) 1 2 A B C D EBB M M: Month Code UM3302H CSP Rev.08 Dec /13

2 (Top iew) CCA A CCB Q M A2 3 7 B1 GND B2 M: Month Code UM3302Q QFN Ball Mapping for UM3302H 1 2 A B2 B1 B GND CCB C D CCA A2 A1 Traparent Top iew Pin Description Pin No UM3302H UM3302Q Pin Name Function A1 6 B2 Input/Output B. Referenced to CCB B1 4 GND Ground C1 1 CCA A-Port supply voltage. 1.2 CCA 3.6 and CCA CCB D1 3 A2 Input/Output A. Referenced to CCA D2 2 A1 Input/Output A. Referenced to CCA C2 5 3-state output enable. Pull low to place all outputs in 3-state mode. Referenced to CCA B2 8 CCB B-Port supply voltage CCB 5.5 A2 7 B1 Input/Output B. Referenced to CCB Ordering Information Part Number Packaging Type Marking Code Shipping Qty UM3302H CSP EBB 3000pcs/7Inch UM3302Q QFN Q Tape & Reel Rev.08 Dec /13

3 Absolute Maximum Ratings (Note 1) Over operating free-air temperature range (unless otherwise noted) UM3302H/UM3302Q Symbol Parameter alue CCA Supply oltage Range -0.5 to +4.5 CCB Supply oltage Range -0.5 to +6.5 I Input oltage Range (Note 2) O O oltage Range applied to any output in the high-impedance or power-off state (Note 2) oltage Range applied to any output in the high or low state (Note 2,3) A port -0.5 to +4.5 B port -0.5 to +6.5 A port -0.5 to +4.5 B port -0.5 to +6.5 A port -0.5 to ( CCA +0.5) B port -0.5 to ( CCB +0.5) I IK Input Clamp Current I <0-50 ma I OK Output Clamp Current O <0-50 ma I O Continuous Output Current ±50 ma Continuous Current through CCA, CCB, or GND ±100 ma T OP Operating Temperature Range -40 to +85 C T STG Storage Temperature Range -65 to +150 C Note 1: Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditio beyond those indicated under "recommended operating conditio" is not implied. Exposure to absolute-maximum-rated conditio for extended periods may affect device reliability. Note 2: The input and output negative-voltage ratings may be exceeded if the input and output current ratings are observed. Note 3: The value of CCA and CCB are provided in the recommended operating conditio table. Recommended Operating Conditio (Note 1, 2) Symbol Parameter CCA CCB Min Max CCA Supply oltage CCB IH IL O Δt/Δv High Level Input oltage Low Level Input oltage oltage range applied to any output in the high-impedance or power off state Input Traition Rise or Fall Time Data Inputs 1.2 to to 5.5 CCI 0.65 (Note3) CCI Input 1.2 to to 5.5 CCA Data Inputs 1.2 to to CCI 0.35 Input 1.2 to to CCA 0.35 A Port to to 5.5 B Port A-Port Inputs 1.2 to to to B-Port Inputs 1.2 to to Note1. The A and B sides of an unused data I/O pair must be held in the same state, i.e., both at CCI or both at GND. Note2. CCA must be less than or equal to CCB and must not exceed 3.6. Note3. CCI is the supply voltage associated with the input port. Rev.08 Dec /13 /

4 Electrical Characteristics (Note 1, 2) Over recommended operating free-air temperature range (unless otherwise noted) T A =25-40 to 85 Parameter Test Conditio CCA CCB Min Max Min Max OHA OLA I OH =-20μA 1.4 to 3.6 CCA I OL =20μA 1.4 to OHB I OH =-20μA 1.65 to 5.5 CCB -0.4 OLB I OL =20μA 1.65 to I I I = CCI or GND 1.2 to to 5.5 ±1 ±2 μa I off A Port B Port I or O =0 to 3.6 I or O =0 to to 5.5 ±1 ±2 0 to ±1 ±2 I OZ A or B Port =GND 1.2 to to 5.5 ±1 ±2 μa to μa I CCA I = CCI or GND I O =0 1.4 to to μa to I CCB I = CCI or GND I O =0 1.4 to to μa I CCA +I CCB I = CCI or GND I O = to to to μa I CCZA I = CCI or GND I O =0, =GND to to to μa I CCZB I = CCI or GND I O =0, =GND to to to μa C i 1.2 to to pf C io A Port to to 5.5 B Port Note1. CCI is the supply voltage associated with the input port. Note2. CCO is the supply voltage associated with the output port. pf Rev.08 Dec /13

5 Switching Characteristics T A =+25 C, CCA = 1.2 Parameter From To CCB =1.8 CCB =2.5 CCB =3.3 CCB =5 (Input) (Output) Typ Typ Typ Typ t pd A B B A t en A B μs t dis A B t ra, t fa A port rise and fall time t rb, t fb B port rise and fall time t SK(O) Channel-to-channel Max data rate Mbps Switching Characteristics Over recommended operating free-air temperature range, CCA =1.5±0.1 (unless otherwise noted) Parameter From To CCB =1.8 CCB =2.5 CCB =3.3 CCB =5 ±0.15 ±0.2 ±0.3 ±0.5 (Input) (Output) Min Max Min Max Min Max Min Max t pd A B B A t en A B μs t dis A B t ra, t fa A port rise and fall time t rb, t fb B port rise and fall time t SK(O) Channel-to-channel Max data rate Mbps Rev.08 Dec /13

6 Switching Characteristics Over recommended operating free-air temperature range, CCA =1.8±0.15 (unless otherwise noted) Parameter From To CCB =1.8 CCB =2.5 CCB =3.3 CCB =5 ±0.15 ±0.2 ±0.3 ±0.5 (Input) (Output) Min Max Min Max Min Max Min Max t pd A B B A t en A B μs t dis A B t ra, t fa A port rise and fall time t rb, t fb B port rise and fall time t SK(O) Channel-to-channel Max data rate Mbps Switching Characteristics Over recommended operating free-air temperature range, CCA =2.5±0.2 (unless otherwise noted) Parameter From To CCB =2.5 CCB =3.3 CCB =5 ±0.2 ±0.3 ±0.5 (Input) (Output) Min Max Min Max Min Max t pd A B B A t en A B μs t dis A B t ra, t fa A port rise and fall time t rb, t fb B port rise and fall time t SK(O) Channel-to-channel Max data rate Mbps Rev.08 Dec /13

7 Switching Characteristics Over recommended operating free-air temperature range, CCA =3.3±0.3 (unless otherwise noted) Parameter From To CCB =3.3 CCB =5 ±0.3 ±0.5 (Input) (Output) Min Max Min Max t pd A B B A t en A 1 1 B 1 1 μs t dis A B t ra, t fa A port rise and fall time t rb, t fb B port rise and fall time t SK(O) Channel-to-channel Max data rate Mbps Operating Characteristics T A =+25 C CCB to 5 Pamameter Test Conditio CCA Typ Typ Typ Typ Typ Typ Typ C pda C pdb C pda C pdb A-port input B-port output B-port input A-port output A-port input B-port output B-port input A-port output A-port input B-port output B-port input A-port output A-port input B-port output B-port input A-port output C L =0, f=10mhz, t r =t f =1, = CCA C L =0, f=10mhz, t r =t f =1, = GND pf pf Rev.08 Dec /13

8 Applicatio Information UM3302 ESD protected level tralator provides level shifting necessary to allow data trafer in a multi-voltage system. Externally applied voltages, CCA and CCB set the logic levels on either side of device. A low voltage signal present on CCA side of the device appears as a high voltage logic signal on the CCB side of the device, and vice-versa. Block Diagram The UM3302 (block diagram see Figure 1) does not require a direction-control signal to control the direction of data flow from A to B or from B to A. In a dc state, the output drivers of the UM3302 can maintain a high or low, but are designed to be weak, so that they can be overdriven by an external driver when data on the bus starts flowing the opposite direction. The output one shot detects rising or falling edges on the A or B ports. During a rising edge, the one shot tur on the PMOS traistors (T1, T3) for a short duration, which speeds up the low-to-high traition. Similarly, during a falling edge, the one shot tur on the NMOS traistors (T2, T4) for a short duration, which speeds up the high-to-low traition. CCA CCB P One Shot T1 4K I/O A T3 P One Shot N One Shot T2 I/O B 4K T4 N One Shot Figure 1 Block Diagram of UM3302 I/O Cell Rev.08 Dec /13

9 Input Driver Requirements UM3302H/UM3302Q Typical I IN vs IN characteristics of the UM3302 are shown in Figure 2. For proper operation, the device driving the data I/Os of the UM3302 must have drive strength of at least ±2 ma. I IN T /4kΩ IN Power Up -( D - T )/4kΩ A: T is the input threshold voltage of the UM3302 (typical CCI /2) B: D is the supply voltage of the external driver. Figure 2 Typical I IN vs IN Curve During operation, eure that CCA CCB at all times. During power-up sequencing, CCA CCB does not damage the device, so any power supply can be ramped up first. The UM3302 has circuitry that disables all output ports when either CC is switched off ( CCA/B = 0 ). Enable and Disable The UM3302 has an input that is used to disable the device by setting = low, which places all I/Os in the high-impedance (Hi-Z) state. The disable time (tdis) indicates the delay between when goes low and when the outputs actually get disabled (Hi-Z). The enable time (ten) indicates the amount of time the user must allow for the one-shot circuitry to become operational after is taken high. Pullup or Pulldown Resistors on I/O Lines The UM3302 is designed to drive capacitive loads of up to 50pF. The output drivers of the UM3302H have low dc drive strength. If pullup or pulldown resistors are connected externally to the data I/Os, their values must be kept higher than 50kΩ to eure that they do not contend with the output drivers of the UM3302. For the same reason, the UM3302 should not be used in applicatio such as I 2 C or 1-Wire where an open-drain driver is connected on the bidirectional data I/O. Rev.08 Dec /13

10 Typical Operating Circuit μF 1.8- System Controller CCA CCB 3.3- System 0.1μF 3.3 Data A1 B1 Data Data GND A2 GND B2 Data GND Figure 3 Typical operating circuit Test Circuits 2 CCO From Output Under Test 15pF 1MΩ From Output Under Test 15pF 50kΩ 50kΩ S1 Open LOAD CIRCUIT FOR MAX DATA RATE, PULSE DURATION PROPAGATION DELAY OUTPUT RISE AND FALL TIME MEASUREMENT LOAD CIRCUIT FOR ENABLE/DISABLE TIME MEASUREMENT TEST tpzl/tplz tphz/tpzh S1 2 CCO Open Input CCI/2 CCI/2 CCI 0 t PLH t PHL Output CCO/2 0.9 CCO CCO/2 OH t w t r 0.1 CCO t r OL Input CCI/2 CCI/2 CCI 0 OLTAGE WAEFORMS PROPAGATION DELAY TIMES OLTAGE WAEFORMS PULSE DURATION A. CL includes probe and jig capacitance. B. All input pulses are supplied by generators having the following characteristics: PRR 10MHz, ZO=50Ω,dv/dt 1/. C. The outputs are measured one at a time, with one traition per measurement. D. tplh and tphl are the same as tpd. E. CCI is the CC associated with the input port. F. CCO is the CC associated with the output port. G. All parameters and waveforms are not applicable to all devices. Figure 4 Load Circuits and oltage Waveforms Rev.08 Dec /13

11 Package Information Outline Drawing UM3302H: CSP D E Top iew A Ball 1 Index Aera Side iew b A1 E1 C Bottom iew e L D1 DIMENSIONS Symbol MILLIMETERS INCHES Min Max Min Max A A D E D1 1.50BSC 0.06BSC E1 0.50BSC 0.020BSC e 0.50BSC 0.02BSC b C 0.25BSC 0.01BSC L 0.25BSC 0.01BSC Land Pattern NOTES: 1. Bump is Lead Free Sn/Ag/Cu. 2. : mm; 3. Non-solder mask defined copper landing pad. 4. Laser Mark on silicon die back; back-lapped. Tape and Reel Orientation EBB M Rev.08 Dec /13

12 Outline Drawing UM3302Q: QFN D Top iew Side iew E A3 A1 A 1 L e b Bottom iew 6 L DIMENSIONS Symbol MILLIMETERS INCHES Min Max Min Max A A A3 0.13REF 0.005REF D 1.40BSC 0.056BSC E 1.20BSC 0.048BSC e 0.40BSC 0.016BSC b L L Land Pattern NOTES: 1. Compound dimeion: ; 2. : mm; 3. General tolerance ±0.05mm unless otherwise specified; 4. The layout is just for reference. Tape and Reel Orientation Q M Rev.08 Dec /13

13 IMPORTANT NOTICE UM3302H/UM3302Q The information in this document has been carefully reviewed and is believed to be accurate. Nonetheless, this document is subject to change without notice. Union assumes no respoibility for any inaccuracies that may be contained in this document, and makes no commitment to update or to keep current the contained information, or to notify a person or organization of any update. Union reserves the right to make changes, at any time, in order to improve reliability, function or design and to attempt to supply the best product possible. Union Semiconductor, Inc Add: 606, No.570 Shengxia Road, Shanghai Tel: Fax: Website: Rev.08 Dec /13

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