UNISONIC TECHNOLOGIES CO., LTD U74HC595A CMOS IC 8-BIT SERIAL-IN SHIFT REGISTER WITH LATCHED 3-STATE PARALLEL OUTPUTS， PROVIDING SERIAL OUTPUT DESCRIPTION The UTC 74HC595A contains an 8-bit register with asynchronous reset input and an 8-bit latch with output. The Serial Data Input (A) will shift into the internal shift register during every LOW-to-HIGH transition on the Shift Clock. The latch will latch the 8-bit data from the shift register during the LOW-to-HIGH transition on the Latch Clock. The shift register also provides a serial output. FEATURES * Operation Voltage Range:2~6V * High Noise Immunity * Output Compatibility with CMOS and TTL * Specified from -40~+125°C * Halogen Free ORDERING INFORMATION Ordering Number U74HC595AG-S16-R Package SOP-16 www.unisonic.com.tw Copyright © 2009 Unisonic Technologies Co., Ltd Packing Tape Reel 1 of 6 QW-R502-354.A U74HC595A CMOS IC PIN CONFIGURATION FUNCTION TABLE INPUT Operation Reset Serial Shift input A clock OUTPUT Latch Output clock enable SR LR SQH Reset shift register L X X L,H, È L L NC L DÆ SRA Shift data into shift H D L,H, È L NC SRGÆSRH Ç register SRNÆSRN+1 Shift register remains H X L,H, È L,H, È L NC NC NC unchanged Transfer shift register contents to latch H X L,H, È L NC SRNÆLRN NC Ç register Latch register remains X X X L,H, È L * NC * unchanged Enable parallel outputs X X X X L * ** * Force outputs into high X X X X H * ** * impedance state SR: shift register contents LR: latch register contents NC: unchanged D: data(L,H) logic level Ç: low-to-high È: high-to-low *: depends on Reset and Shift Clock inputs **: depends on Latch Clock inputs UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw QA to QH NC NC NC SRN NC Enabled Z 2 of 6 QW-R502-354.A U74HC595A CMOS IC LOGIC DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 6 QW-R502-354.A U74HC595A CMOS IC ABSOLUTE MAXIMUM RATING (unless otherwise specified)(Note 2) PARAMETER Supply Voltage Input Voltage Output Voltage(active mode) RATINGS UNIT -0.5~7.0 V -0.5~Vcc+0.5 V -0.5~VCC+0.5 V Input Clamp Current (VIN <0) ±20 mA Output Clamp Current (VOUT <0) ±20 mA Output Current ±35 mA VCC or GND Current ±75 mA Power Dissipation 500 mW PD Derate above 65°C~125°C 7 mW Storage Temperature TSTG -65 ~ +150 °C Notes: 1. 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. 2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. SYMBOL VCC VIN VOUT IIK IOK IOUT ICC RECOMMENDED OPERATING COMDITIONS PARAMETER SYMBOL VCC VIN VOUT TOPR Supply Voltage Input Voltage Output Voltage Operating Temperature Input Transition Rise or Fall Rate VCC =2V VCC =4.5V VCC =6V MIN 2 0 0 -40 Δt ΔV TYP MAX 6 VCC VCC 125 1000 500 400 UNIT V V V °C ns ns ns ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL HIGH-level input voltage VIH LOW-lever output voltage VIL High-Level Output Voltage, QA-QH VOH Low-Level Output Voltage, QA-QH VOL TEST CONDITIONS VCC=2V VCC=3V VCC=4.5V VCC=6V VCC=2V VCC=3V VCC=4.5V VCC=6V VCC=2V, IOH=-20μA VCC=4.5V, IOH=-20μA VCC=6V, IOH=-20μA VCC=3V, IOH=-2.4mA VCC=4.5V, IOH=-6mA VCC=6V, IOH=-7.8mA VCC=2V, IOL=20μA VCC=4.5V, IOL=20μA VCC=6V, IOL=20μA VCC=3V, IOL=2.4mA VCC=4.5V, IOL=6mA MIN TYP MAX UNIT 1.5 V 2.1 V 3.15 V 4.2 V 0.5 V 0.9 V 1.35 V 1.8 V 1.9 V 4.4 V 5.9 V 2.48 V 3.98 V 5.48 V 0.1 V 0.1 V 0.1 V 0.26 V 0.26 V VCC=6V, IOL=7.8mA High-Level Output Voltage, SQH VOH VCC=2V, IOH=-20μA VCC=4.5V, IOH=-20μA VCC=6V, IOH=-20μA VCC=3V, IOH=-2.4mA VCC=4.5V, IOH=-4mA VCC=6V, IOH=-5.2mA UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 0.26 1.9 4.4 5.9 2.48 3.98 5.48 V V V V V V V 4 of 6 QW-R502-354.A U74HC595A CMOS IC ELECTRICAL CHARACTERISTICS(Cont.) PARAMETER SYMBOL Low-Level Output Voltage, SQH VOL Input Leakage Current Output OFF -state current Quiescent Supply Current Input Capacitance II(LEAK) IOZ IQ CIN MIN TYP MAX UNIT 0.1 V 0.1 V 0.1 V 0.26 V 0.26 V 0.26 V ±0.1 μA ±0.5 μA 4 μA 10 pF MIN TYP MAX 6 15 30 35 140 100 28 24 135 90 27 23 150 100 30 26 75 27 15 13 145 100 29 25 140 100 28 24 60 23 12 10 MIN TYP MAX UNIT 300 pF DYNAMIC CHARACTERISTICS PARAMETER Maximum clock pulse frequency SYMBOL fmax Propagation delay from input (Latch Clock) to output(Qn) tPHL/tPLH Propagation delay from input (Output Enable) to output(Qn) tPZL/tPZH Propagation delay from input (Output Enable) to output(Qn) tPLZ/tPHZ Output transition time, SQH tTLH/ tTHL Propagation delay from input (Reset) to output(SQH) tPHL Propagation delay from input (Shift Clock) to output(SQH) tPLH/tPHL Output transition time, Qn tTLH/ tTHL TEST CONDITIONS VCC=2V, IOL=20μA VCC=4.5V, IOL=20μA VCC=6V, IOL=20μA VCC=3V, IOL=2.4mA VCC=4.5V, IOL=4mA VCC=6V, IOL=5.2mA VCC=6V, VIN=VCC or GND VCC=6V, VOUT=VCC or GND VCC=6V, VIN=VCC or GND, IOUT=0 VCC=6V, VIN=VCC or GND TEST CONDITIONS VCC=2V VCC=3V VCC=4.5V VCC=6V VCC=2V VCC=3V VCC=4.5V VCC=6V VCC=2V VCC=3V VCC=4.5V VCC=6V VCC=2V VCC=3V VCC=4.5V VCC=6V VCC=2V VCC=3V VCC=4.5V VCC=6V VCC=2V VCC=3V VCC=4.5V VCC=6V VCC=2V VCC=3V VCC=4.5V VCC=6V VCC=2V VCC=3V VCC=4.5V VCC=6V UNIT MHz MHz MHz MHz ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns OPERATING CHARACTERISTICS PARAMETER Power Dissipation Capacitance SYMBOL Cpd TEST CONDITIONS No load UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R502-354.A U74HC595A CMOS IC TEST CIRCUIT AND WAVEFORMS VCC K1 From Output CL RL K2 (Note 2) Note 2: CL includes probe and jig capacitance. CL=50pF, RL=1KΩ 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., LTD www.unisonic.com.tw 6 of 6 QW-R502-354.A