SN74LS594N.A中文资料德州仪器数据手册PDF规格书

8-Bit Serial-In, Parallel-Out Shift

Registers with Storage

Choice of Output Configurations:

‘LS694 ... Buffered

‘LS599 ... Open-Collector

Guaranteed Shift Frequency:

DC to 20 MHz

Independent Direct-Overriding Clears on

Shift and Storage Registers

Independent Clocks for Both Shift and

Storage Registers

description

These devices each contain an 8-bit D-type storage

register. The storage register has buffered (‘LS594) or

open-collector (‘LS599) outputs. Separate clocks and

direct-overriding clears are provided on both the shift

and storage registers. A shift output (Q*) is provided

for cascading purposes.

Both the shift register and the storage register clocks

are positive-edge triggered. If the user wishes to con-

nect both clocks together, the shift register will always

be one clock pulse ahead of the storage register.