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SN74ALS74AD PDF预览

SN74ALS74AD

更新时间: 2024-11-23 23:06:15
品牌 Logo 应用领域
德州仪器 - TI 触发器
页数 文件大小 规格书
7页 116K
描述
DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLEAR AND PRESET

SN74ALS74AD 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP, SOP14,.25针数:14
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:1.25Samacsys Description:DUAL POSITIVE-EDGE-TRIGGERED D -TYPE FLIP-FLOPS WITH CLEAR AND PRESET
系列:ALSJESD-30 代码:R-PDSO-G14
JESD-609代码:e4长度:8.65 mm
负载电容(CL):50 pF逻辑集成电路类型:D FLIP-FLOP
最大频率@ Nom-Sup:34000000 Hz最大I(ol):0.008 A
湿度敏感等级:1位数:1
功能数量:2端子数量:14
最高工作温度:70 °C最低工作温度:
输出极性:COMPLEMENTARY封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP14,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
包装方法:TUBE峰值回流温度(摄氏度):260
电源:5 V最大电源电流(ICC):4 mA
Prop。Delay @ Nom-Sup:18 ns传播延迟(tpd):18 ns
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:FF/Latches最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):4.5 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:TTL
温度等级:COMMERCIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
触发器类型:POSITIVE EDGE宽度:3.91 mm
最小 fmax:34 MHz

SN74ALS74AD 数据手册

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SN54ALS74A, SN54AS74A, SN74ALS74A, SN74AS74A  
DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS  
WITH CLEAR AND PRESET  
SDAS143C – APRIL 1982 – REVISED AUGUST 1995  
SN54ALS74A, SN54AS74A . . . J PACKAGE  
SN74ALS74A, SN74AS74A . . . D OR N PACKAGE  
Package Options Include Plastic  
Small-Outline (D) Packages, Ceramic Chip  
Carriers (FK), and Standard Plastic (N) and  
Ceramic (J) 300-mil DIPs  
(TOP VIEW)  
1CLR  
1D  
1CLK  
1PRE  
1Q  
V
CC  
2CLR  
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
TYPICAL MAXIMUM  
CLOCK FREQUENCY  
TYPICAL POWER  
DISSIPATION  
PER FLIP-FLOP  
(mW)  
2D  
TYPE  
2CLK  
2PRE  
2Q  
(C = 50 pF)  
L
(MHz)  
50  
ALS74A  
AS74A  
6
1Q  
GND  
2Q  
8
134  
26  
description  
SN54ALS74A, SN54AS74A . . . FK PACKAGE  
(TOP VIEW)  
These devices contain two independent  
positive-edge-triggered 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 are transferred to the  
outputs on the positive-going edge of the clock  
(CLK) pulse. Clock triggering occurs at a voltage  
level and is not directly related to the rise time of  
CLK. Following the hold-time interval, data at the  
D input can be changed without affecting the  
levels at the outputs.  
3
2
1
20 19  
18  
1CLK  
NC  
2D  
17 NC  
4
5
6
7
8
16  
15  
14  
1PRE  
NC  
2CLK  
NC  
1Q  
2PRE  
9 10 11 12 13  
NC – No internal connection  
The SN54ALS74A and SN54AS74A are  
characterized for operation over the full military  
temperature range of 55°C to 125°C. The  
SN74ALS74AandSN74AS74Aarecharacterized  
for operation from 0°C to 70°C.  
FUNCTION TABLE  
INPUTS  
OUTPUTS  
PRE  
L
CLR  
CLK  
X
D
X
X
X
H
L
Q
H
L
Q
L
H
L
H
X
H
H
L
L
X
H
H
H
H
H
H
L
L
H
H
H
L
X
Q
Q
0
0
The output levels in this configuration are not  
specifiedtomeettheminimumlevelsforV ifthe  
OH  
lows at PRE and CLR are near V maximum.  
IL  
Furthermore, this configuration is nonstable; that  
is, it does not persist when PRE or CLR returns to  
its inactive (high) level.  
Copyright 1995, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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