参数资料
型号: SN74LS393DR2
厂商: ON SEMICONDUCTOR
元件分类: 计数器
英文描述: LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO14
封装: PLASTIC, SOIC-14
文件页数: 2/8页
文件大小: 212K
代理商: SN74LS393DR2
SN74LS393
http://onsemi.com
2
CONNECTION DIAGRAM DIP (TOP VIEW)
Clock (Active LOW Going Edge)
Input to +16 (LS393)
Clock (Active LOW Going Edge)
Input to
÷2 (LS390)
Clock (Active LOW Going Edge)
Input to
÷ 5 (LS390)
Master Reset (Active HIGH) Input
FlipFlop Outputs
CP
CP0
CP1
MR
Q0 Q3
0.5 U.L.
10 U.L.
1.0 U.L.
1.5 U.L.
0.25 U.L.
5 U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40
mA HIGH/1.6 mA LOW.
HIGH
LOW
(Note a)
LOADING
PIN NAMES
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
14
13
12
11
10
9
12
3456
8
7
VCC
CP
MR
Q0
Q1
Q2
Q3
CP
MR
Q0
Q1
Q2
Q3
GND
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