UNISONIC TECHNOLOGIES CO., LTD

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1 UNISONIC TECHNOLOGIES CO., LT 8-STAGE SHIFT & STORE BUS REGISTER ESCRIPTION The U74HC4094 consists of an 8-stage shift register and an 8-stage -type latch with 3-stage parallel outputs. ata is shifted serially through the shift register on the positive-going clock transition of the input singal. The output of the last stage S1 can be used to cascade several devices. The output of S1 is transferred to a second output(s2) on the following negative-going clock transition of the input singal. The data of each stage of the shift register is provided with a latch whose data on the negative going transition of the Strobe input signal. When the strobe input is held high, data propagates through the latch to a 3-state output buffer. The buffer is enabled when Output Enable input is taken high. FEATURES SOP-16 TSSOP-16 * Operate from 2. to 6. * Low Power issipation I CC =4μA(Max) * High Noise Immunity Characteristic of CMOS evices ORERING INFORMATION Ordering Number Lead Free Halogen Free Package Packing U74HC4094L-S16-R U74HC4094G-S16-R SOP-16 Tape Reel U74HC4094L-P16-R U74HC4094G-P16-R TSSOP-16 Tape Reel U74HC4094L-P16-T U74HC4094G-P16-T TSSOP-16 Tube 1 of 6 Copyright 2012 Unisonic Technologies Co., Ltd

2 PIN CONFIGURATION FUNCTION TABLE INPUTS PARALLEL OUTPUTS SERIAL OUTPUTS OE STR P0 Pn S1 S2 L X X Z Z 6 NC L X X Z Z NC P7 H L X NC NC 6 NC H H L L Pn-1 6 NC H H H H Pn-1 6 NC H H H NC NC NC P7 Note:H : HIGH voltage level; L : LOW voltage level. X : on t care.high impedance OFF-state. NC: No change. Z : High impedance OFF-state. : Low-to-High transition. : High-to-Low transition. 6: the information in the seventh register stage is transferred to the 8th register stage and Sn output at the positive clock edge LOGIC SYMBOL UNISONIC TECHNOLOGIES CO., LT 2 of 6

3 LOGIC IAGRAM S1 S2 STR OE P0 P1 P2 P3 P4 P5 P6 P7 TIMING IAGRAM UNISONIC TECHNOLOGIES CO., LT 3 of 6

4 ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Supply Voltage -0.5 ~ 7.0 V Input Voltage V IN -0.5 ~ +0.5 V Output Voltage V OUT -0.5 ~ +0.5 V or GN Current I CC ±50 ma Input Current I IN ±20 ma Output Current I OUT ±25 ma Storage Temperature T STG -65 ~ Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. RECOMMENE OPERATING CONITIONS PARAMETER SYMBOL TEST CONITIONS MIN TYP MAX UNIT Supply Voltage Operating V Input Voltage V IN 0 V Output Voltage V OUT 0 V Operating Temperature T A = Input Rise or Fall Times t R, t F =4.5V 500 ns = ELECTRICAL CHARACTERISTICS(T A =25 ) PARAMETER SYMBOL TEST CONITIONS MIN TYP MAX UNIT =2V 1.5 V High-level input voltage V IH =4.5V 3.15 V =6V 4.2 V =2V 0.5 V Lowever output voltage V IL =4.5V 1.35 V =6V 1.8 V =2V, I OH =-20μA 1.9 V =4.5V, I OH =-20μA 4.4 V High-Level Output Voltage V OH =6V, I OH =-20μA 5.9 V =4.5V, I OH =-4.0mA 3.98 V =6V, I OH =-5.2mA 5.48 V =2V, I OL =20μA 0.1 V =4.5V, I OL =20μA 0.1 V Low-Level Output Voltage V OL =6V, I OL =20μA 0.1 V =4.5V, I OH =4mA 0.26 V =6V, I OL =5.2mA 0.26 V Input Leakage Current I I(LEAK) =6V, V IN = or GN ±0.1 μa Output OFF -state current I OZ =6V, V OUT = or GN ±0.5 μa uiescent Supply Current I =6V, V IN = or GN, I OUT =0 4 μa UNISONIC TECHNOLOGIES CO., LT 4 of 6

5 SWITCHING CHARACTERISTICS(T A =25,see TEST CIRCUIT AN WAVEFORMS) PARAMETER SYMBOL TEST CONITIONS MIN TYP MAX UNIT =2V ns t PHL /t PLH =4.5V ns () to output(s1) =6V ns () to output(s2) () to output(pn) (STR) to output(pn) 3-state output enable time from input (OE) to output(pn) 3-state output disable time from input (OE) to output(pn) Output transition time(sn Pn) Clock pulse width HIGH or LOW() Strobe pulse width HIGH(STR) Set-up time( to ) Set-up time( to STR) Hold time( to ) Hold time( to STR) Maximum clock pulse frequency t PHL /t PLH t PHL /t PLH t PHL /t PLH t PZH /t PZL t PHZ /t PLZ t TLH / t THL t W t W t SU t SU t H t H f MAX OPERATING CHARACTERISTICS =2V ns =4.5V ns =6V ns =2V ns =4.5V ns =6V ns =2V ns =4.5V ns =6V ns =2V ns =4.5V ns =6V ns =2V ns =4.5V ns =6V ns =2V ns =4.5V 7 15 ns =6V 6 13 ns =2V ns =4.5V 16 5 ns =6V 14 4 ns =2V ns =4.5V 16 5 ns =6V 14 4 ns =2V ns =4.5V 10 5 ns =6V 9 4 ns =2V ns =4.5V ns =6V 17 8 ns =2V 3-6 ns =4.5V 3-2 ns =6V 3-2 ns =2V 0-14 ns =4.5V 0-5 ns =6V 0-4 ns =2V 6 28 MHz =4.5V MHz =6V MHz PARAMETER SYMBOL TEST CONITIONS MIN TYP MAX UNIT Power issipation Capacitance C P No load 300 pf UNISONIC TECHNOLOGIES CO., LT 5 of 6

6 TEST CIRCUIT AN WAVEFORMS Note: CL =50pF, RL =1kΩ Timing Input ata Input t SU t h Setup Time and Hold Time V I t W Pulse Width V I t PLH t PHL OE V O t PZL t PLZ 10% V OL V O V OH V OL V O t PZH t PHZ 90% V OH Propagation elay Times Enable and isable Times Note: CL includes probe and jig capacitance. PRR 10MHz, Zo = 50Ω, tr 6ns, tf 6ns. UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LT 6 of 6

UNISONIC TECHNOLOGIES CO., LTD U74HCT245

UNISONIC TECHNOLOGIES CO., LTD U74HCT245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS DIP-20 DESCRIPTION The U74HCT245 is designed for the asynchronous communication between data buses. While the direction-control(dir)