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SN74LS168N PDF预览

SN74LS168N

更新时间: 2024-09-15 23:06:19
品牌 Logo 应用领域
安森美 - ONSEMI 计数器逻辑集成电路光电二极管
页数 文件大小 规格书
6页 122K
描述
BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS

SN74LS168N 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:DIP包装说明:PLASTIC, DIP-16
针数:16Reach Compliance Code:not_compliant
HTS代码:8542.39.00.01风险等级:5.82
Is Samacsys:N计数方向:BIDIRECTIONAL
系列:LSJESD-30 代码:R-PDIP-T16
JESD-609代码:e0长度:19.175 mm
负载/预设输入:YES逻辑集成电路类型:DECADE COUNTER
最大频率@ Nom-Sup:25000000 Hz最大I(ol):0.008 A
工作模式:SYNCHRONOUS位数:4
功能数量:1端子数量:16
最高工作温度:70 °C最低工作温度:
输出特性:3-STATE封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP16,.3
封装形状:RECTANGULAR封装形式:IN-LINE
峰值回流温度(摄氏度):NOT SPECIFIED电源:5 V
最大电源电流(ICC):34 mA传播延迟(tpd):23 ns
认证状态:Not Qualified座面最大高度:4.44 mm
子类别:Counters最大供电电压 (Vsup):5.25 V
最小供电电压 (Vsup):4.75 V标称供电电压 (Vsup):5 V
表面贴装:NO技术:TTL
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:THROUGH-HOLE端子节距:2.54 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:7.62 mm
最小 fmax:25 MHzBase Number Matches:1

SN74LS168N 数据手册

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SN54/74LS168  
SN54/74LS169  
BCD DECADE/MODULO  
16 BINARY SYNCHRONOUS  
BI-DIRECTIONAL COUNTERS  
BCD DECADE/MODULO  
16 BINARY SYNCHRONOUS  
BI-DIRECTIONAL COUNTERS  
The SN54/74LS168 and SN54/74LS169 are fully synchronous 4-stage  
up/down counters featuring a preset capability for programmable operation,  
carry lookahead for easy cascading and a U/D input to control the direction  
of counting. The SN54/74LS168 counts in a BCD decade (8, 4, 2, 1)  
sequence, while the SN54/74LS169 operates in a Modulo 16 binary  
sequence. All state changes, whether in counting or parallel loading, are  
initiated by the LOW-to-HIGH transition of the clock.  
LOW POWER SCHOTTKY  
Low Power Dissipation 100 mW Typical  
High-Speed Count Frequency 30 MHz Typical  
Fully Synchronous Operation  
Full Carry Lookahead for Easy Cascading  
Single Up/Down Control Input  
J SUFFIX  
CERAMIC  
CASE 620-09  
16  
1
Positive Edge-Trigger Operation  
Input Clamp Diodes Limit High-Speed Termination Effects  
N SUFFIX  
PLASTIC  
CASE 648-08  
CONNECTION DIAGRAM DIP (TOP VIEW)  
16  
V
TC  
15  
Q
Q
Q
Q
3
CET  
10  
PE  
9
CC  
0
1
2
1
16  
14  
13  
12  
11  
NOTE:  
The Flatpak version  
has the same pinouts  
(Connection Diagram) as  
the Dual In-Line Package.  
D SUFFIX  
SOIC  
CASE 751B-03  
16  
1
1
2
3
4
5
6
8
7
ORDERING INFORMATION  
U/D  
CP  
P
P
P
P
3
CEP GND  
0
1
2
SN54LSXXXJ  
Ceramic  
SN74LSXXXN Plastic  
SN74LSXXXD SOIC  
PIN NAMES  
LOADING (Note a)  
HIGH  
LOW  
CEP  
CET  
CP  
PE  
U/D  
Count Enable Parallel (Active LOW) Input  
Count Enable Trickle (Active LOW) Input  
Clock Pulse (Active positive going edge) Input  
Parallel Enable (Active LOW) Input  
Up-Down Count Control Input  
Parallel Data Inputs  
Flip-Flop Outputs  
Terminal Count (Active LOW) Output  
0.5 U.L.  
1.0 U.L.  
0.5 U.L.  
0.5 U.L.  
0.5 U.L.  
0.5 U.L.  
0.25 U.L.  
0.5 U.L.  
0.25 U.L.  
0.25 U.L.  
0.25 U.L.  
0.25 U.L.  
LOGIC SYMBOL  
9
3
4
5
6
PE  
U/D  
P
P
P
P
P –P  
0
1
2
3
0
3
3
1
7
10  
2
Q –Q  
0
10 U.L. 5 (2.5) U.L.  
10 U.L. 5 (2.5) U.L.  
CEP  
CET  
CP  
TC  
TC  
15  
NOTES:  
a. 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW.  
b. The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)  
b. Temperature Ranges.  
Q
Q
Q
Q
2 3  
0
1
14 13 12 11  
V
= PIN 16  
CC  
GND = PIN 8  
FAST AND LS TTL DATA  
5-1  

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