SN74AHC74DGVR集成电路（IC）的触发器规格书PDF中文资料

厂商型号	SN74AHC74DGVR
参数属性	SN74AHC74DGVR 封装/外壳为14-TFSOP（0.173"，4.40mm 宽）；包装为卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带；类别为集成电路（IC）的触发器；产品描述：IC FF D-TYPE DUAL 1BIT 14TVSOP
功能描述	SNx4AHC74 Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear and Preset
丝印标识	HA74
封装外壳	TVSOP / 14-TFSOP（0.173"，4.40mm 宽）
文件大小	3.27085 Mbytes
页面数量	42 页
生产厂商	Texas Instruments
企业简称	TI【德州仪器】
中文名称	美国德州仪器公司官网
原厂标识
数据手册	下载地址一下载地址二到原厂下载
更新时间	2025-6-29 9:29:00
人工找货	SN74AHC74DGVR价格和库存，欢迎联系客服免费人工找货

1 Features

• Operating range 2-V to 5.5-V VCC

• Latch-up performance exceeds 250 mA per JESD

• ESD protection exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

2 Applications

• Convert a momentary switch to a toggle switch

• Hold a signal during controller reset

• Input slow edge-rate signals

• Operate in noisy environments

• Divide a clock signal by two

3 Description

The SNx4AHC74 dual positive-edge-triggered devices

are D-type 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 data (D) input meeting the setup

time requirements is transferred to the outputs on

the positive-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 D input can be

changed without affecting the levels at the outputs.