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参数资料
| 型号： | MM74C90N |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 通用总线功能 |
| 英文描述： | 4-Bit Decade, Binary Counter |
| 中文描述： | CMOS SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP DECADE COUNTER, PDIP14 |
| 封装： | PLASTIC, DIP-14 |
| 文件页数： | 1/6页 |
| 文件大小： | 124K |
| 代理商： | MM74C90N |
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 |
|---|---|
| MM54C90J | 4-Bit Decade, Binary Counter |
| MM54C90N | 4-Bit Decade, Binary Counter |
| MM54C93J | 4-Bit Decade, Binary Counter |
| MM54C93N | 4-Bit Decade, Binary Counter |
| MM54C932 | Phase Comparator |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MM74C910 | 制造商:TI 制造商全称:Texas Instruments 功能描述:256-Bit TRI-STATE Random Access Read/Write Memory |
| MM74C911 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:4-Digit Expandable Segment Display Controller |
| MM74C911N | 功能描述:LED显示驱动器 4-Dgt Dis Controller RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| MM74C912 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:6-Digit BCD Display Controller/Driver |
| MM74C912N | 功能描述:LED显示驱动器 6-Dgt BCD Dis Con/Dr RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
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