参数资料
型号: 74LVC74APW,118
厂商: NXP Semiconductors
文件页数: 14/19页
文件大小: 0K
描述: IC DUAL D-TYPE FLIP-FLOP 14TSSOP
产品培训模块: Logic Packages
标准包装: 2,500
系列: 74LVC
功能: 设置(预设)和复位
类型: D 型
输出类型: 差分
元件数: 2
每个元件的位元数: 1
频率 - 时钟: 250MHz
延迟时间 - 传输: 2.5ns
触发器类型: 正边沿
输出电流高,低: 24mA,24mA
电源电压: 1.2 V ~ 3.6 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 14-TSSOP(0.173",4.40mm 宽)
包装: 带卷 (TR)
74LVC74A
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 7 — 20 November 2012
4 of 19
NXP Semiconductors
74LVC74A
Dual D-type flip-flop with set and reset; positive-edge trigger
5.2 Pin description
6.
Functional description
[1]
H = HIGH voltage level
L = LOW voltage level
X = don’t care
[1]
H = HIGH voltage level
L = LOW voltage level
= LOW-to-HIGH transition
Qn+1 = state after the next LOW-to-HIGH CP transition
X = don’t care
Table 2.
Pin description
Symbol
Pin
Description
1RD
1
asynchronous reset-direct input (active LOW)
1D
2
data input
1CP
3
clock input (LOW-to-HIGH, edge-triggered)
1SD
4
asynchronous set-direct input (active LOW)
1Q
5
true output
1Q
6
complement output
GND
7
ground (0 V)
2Q
8
complement output
2Q
9
true output
2SD
10
asynchronous set-direct input (active LOW)
2CP
11
clock input (LOW-to-HIGH, edge-triggered)
2D
12
data input
2RD
13
asynchronous reset-direct input (active LOW)
VCC
14
supply voltage
Table 3.
Function table[1]
Input
Output
nSD
nRD
nCP
nD
nQ
L
H
XXH
L
H
L
XXL
H
L
XXH
H
Table 4.
Function table[1]
Input
Output
nSD
nRD
nCP
nD
nQn+1
HH
LLH
HH
HHL
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