74AHC594DB数据手册集成电路（IC）的移位寄存器规格书PDF

描述 Description

The 74AHC594; 74AHCT594 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. 7-A.
The 74AHC594; 74AHCT594 is an 8-bit, non-inverting, serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. Separate clocks (SHCP and STCP) and direct overriding clears (SHR and STR) are provided on both the shift and storage registers. A serial output (Q7S) is provided for cascading purposes.
Both the shift and storage register clocks are positive-edge triggered. If the user wishes to connect both clocks together, the shift register will always be one count pulse ahead of the storage register.

特性 Features

• Balanced propagation delays
• All inputs have Schmitt-trigger actions
• Inputs accept voltages higher than VCC
• Wide supply voltage range from 2.0 V to 5.5 V
• 8-bit serial-in, parallel-out shift register with storage
• Independent direct overriding clears on shift and storage registers
• Independent clocks for shift and storage registers
• Latch-up performance exceeds 100 mA per JESD78 Class II
• Input levels:
• For 74AHC594: CMOS level
• For 74AHCT594: TTL level

• ESD protection:
• HBM EIA/JESD22-A114E exceeds 2000 V
• MM EIA/JESD22-A115-A exceeds 200 V
• CDM EIA/JESD22-C101C exceeds 1000 V

• Multiple package options
• Specified from -40 °C to +85 °C and from -40 °C to +125 °C

应用 Application

• Serial-to parallel data conversion
• Remote control holding register