SN74F112NSR集成电路（IC）的触发器规格书PDF中文资料

SN74F112NSR属于集成电路（IC）的触发器。由美国德州仪器公司制造生产的SN74F112NSR触发器触发器是能够存储单个逻辑状态或信息“位”的基本数字存储器件。这些器件至少有两个输入；一个或多个用于传递要存储的数据，另一个用于指示存储该数据的时间点。不同的触发器类型，例如 D（延迟）、SR（置位复位）和 JK，对提供给其输入的信号有不同的响应，可用于实现不同的逻辑功能。这些器件与锁存器的不同之处在于它们是边缘敏感器件，其保持的逻辑状态仅在接收到有效时钟信号时才会改变。

Package Options Include Plastic

Small-Outline Packages and Standard

Plastic 300-mil DIPs

description

The SN74F112 contains two independent J-K

negative-edge-triggered flip-flops. A low level at

the preset (PRE) or clear (CLR) inputs sets or

resets the outputs regardless of the levels of the

other inputs. When PRE and CLR are inactive

(high), data at the J and K inputs meeting the setup

time requirements is transferred to the outputs on

the negative-going edge of the clock pulse. Clock

triggering occurs at a voltage level and is not

directly related to the rise time of the clock pulse.

Following the hold-time interval, data at the J and

K inputs may be changed without affecting the

levels at the outputs. The SN74F112 can perform

as a toggle flip-flop by tying J and K high.

The SN74F112 is characterized for operation from

0°C to 70°C.