参数资料
型号: MM74C93
厂商: National Semiconductor Corporation
元件分类: 通用总线功能
英文描述: 4-Bit Binary Counter(4位二进制计数器)
中文描述: 4位二进制计数器(4位二进制计数器)
文件页数: 1/6页
文件大小: 124K
代理商: MM74C93
TL/F/5889
M
M
February 1988
MM54C90/MM74C90 4-Bit Decade Counter
MM54C93/MM74C93 4-Bit Binary Counter
General Description
The
MM54C90/MM74C90
MM54C93/MM74C93 binary counter and complementary
MOS (CMOS) integrated circuits constructed with N- and
P-channel enhancement mode transistors. The 4-bit decade
counter can reset to zero or preset to nine by applying ap-
propriate logic level on the R
01
, R
02
, R
91
and R
92
inputs.
Also, a separate flip-flop on the A-bit enables the user to
operate it as a divide-by-2, 5 or 10 frequency counter. The
4-bit binary counter can be reset to zero by applying high
logic level on inputs R
01
and R
02
, and a separate flip-flop on
the A-bit enables the user to operate it as a divide-by-2, -8,
or -16 divider. Counting occurs on the negative going edge
of the input pulse.
decade
counter
and
the
All inputs are protected against static discharge damage.
Features
Y
Wide supply voltage range
3V to 15V
Y
Guaranteed noise margin
1V
Y
High noise immunity
0.45 V
CC
(typ.)
Fan out of 2
driving 74L
the
MM54L93/
Y
Low power
TTL compatiblity
MM54C93/MM74C93
MM74L93 Pinout
Y
The
follows
Connection and Logic Diagrams
MM54C90/MM74C90
Dual-In-Line Package
TL/F/5889–2
Top View
MM54C93/MM74C93
Dual-In-Line Package
TL/F/5889–4
Top View
Order Number MM54C90 or MM74C93
M54C90/MM74C90
TL/F/5889–1
MM54C93/MM74C93
TL/F/5889–3
C
1995 National Semiconductor Corporation
RRD-B30M105/Printed in U. S. A.
相关PDF资料
PDF描述
MM74C90J 4-Bit Decade, Binary Counter
MM74C90N 4-Bit Decade, Binary Counter
MM54C90J 4-Bit Decade, Binary Counter
MM54C90N 4-Bit Decade, Binary Counter
MM54C93J 4-Bit Decade, Binary Counter
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