SN74LS75DR集成电路（IC）的锁存器规格书PDF中文资料

SN74LS75DR属于集成电路（IC）的锁存器。由德州仪器制造生产的SN74LS75DR锁存器锁存器是类似于触发器的基本数字存储设备，但是不同之处在于，在锁存使能（或类似命名）信号处于有效逻辑状态的任何时间，保持的逻辑状态都可以改变。“透明”锁存器还允许设备输出在锁存使能信号有效时反映输入的当前状态，而相反的是，状态仅在保持状态已固定时改变。

description

These latches are ideally suited for use as temporary

storage for binary information between processing units

and input/output or indicator units. Information present

ata date (D) input is transferred to the Q output when

the enable (C) is high and the Q output will follow the

data input as long as the enable remains high. Whon the

enable goes low, the information (that was present at

the data input at the time the wransition occurred) is

retained at the Q output unti the enable is permitted to

go high

The 75 and S75 feature complementary Q and T

outputs from a 4-bit latch, and are available in various

16-pin_ packages. For higher component density

applications, the 77 and 1577 4-bit latches are available

in 14.pin fat packages.

These circuits are completely compatible with al popular

TTL families. All inputs are diods-clamped to minimize

transmission line effects and simply system design.

Series 54 and 54LS devices are characterized for

operation over the full military temperature range of

55°C to 125°C; Series 74, and 74LS devices are

characterized for operation from 0°C to 70°C.