74HC595D

Product Summary

The 74HC595D is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard No. 7A. The 74HC595D is an 8-stage serial shift register with a storage register and 3-state outputs. The register has separate clocks. Data is shifted on the positive-going transitions of the shift register clock input (SHCP). The data in each register 74HC595D is transferred to the storage register on a positive-going transition of the storage register clock input (STCP). If both clocks are connected together, the shift register will always be one clock pulse ahead of the storage register. The shift register 74HC595D has a serial input (DS) and a serial standard output (Q7S) for cascading. It is also provided with asynchronous reset (active LOW) for all 8 shift register stages. The storage register 74HC595D has 8 parallel 3-state bus driver outputs. Data in the storage register appears at the output whenever the output enable input (OE) is LOW.

Parametrics

74HC595D absolute maximum ratings: (1)VCC, supply voltage: -0.5 to +7 V; (2)IIK, input clamping current, VI < -0.5 V or VI > VCC + 0.5V: ± 20 mA max; (3)IOK, output clamping current VO < -0.5 V or VO > VCC + 0.5 V: ±20 mA max; (4)IO, output current VO = -0.5 V to (VCC + 0.5 V): pin Q7S: ±25 mA max; pins Qn: ±35 mA max; (5)ICC, supply current: 70 mA max; (6)IGND, ground current: -70 mA min; (7)Tstg, storage temperature: -65 to +150℃; (8)Ptot, total power dissipation: DIP16 package: 750 mW max; SO16 package: 500 mW max; SSOP16 package: 500 mW max; TSSOP16 package: 500 mW max; DHVQFN16 package: 500 mW max.

Features

74HC595D features: (1)8-bit serial input; (2)8-bit serial or parallel output; (3)Storage register with 3-state outputs; (4)Shift register with direct clear; (5)100 MHz (typical) shift out frequency; (6)ESD protection: HBM JESD22-A114F exceeds 2000 V; MM JESD22-A115-A exceeds 200 V; (7)Multiple package options; (8)Specified from -40℃ to +85℃ and from -40℃ to +125℃.

Diagrams