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参数资料
| 型号： | MC74HC390DR2 |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 计数器 |
| 英文描述： | HC/UH SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP DECADE COUNTER, PDSO16 |
| 封装： | PLASTIC, SOIC-16 |
| 文件页数： | 1/9页 |
| 文件大小： | 223K |
| 代理商： | MC74HC390DR2 |
Semiconductor Components Industries, LLC, 2006
June, 2006 Rev. 7
1
Publication Order Number:
MC74HC390/D
MC74HC390
Dual 4Stage Binary
Ripple Counter with
÷ 2 and ÷ 5 Sections
HighPerformance SiliconGate CMOS
The MC54/74HC390 is identical in pinout to the LS390. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LSTTL outputs.
This device consists of two independent 4bit counters, each
composed of a dividebytwo and a dividebyfive section. The
dividebytwo and dividebyfive counters have separate clock
inputs, and can be cascaded to implement various combinations of ÷ 2
and/or ÷ 5 up to a ÷ 100 counter.
Flipflops internal to the counters are triggered by hightolow
transitions of the clock input. A separate, asynchronous reset is
provided for each 4bit counter. State changes of the Q outputs do not
occur simultaneously because of internal ripple delays. Therefore,
decoded output signals are subject to decoding spikes and should not
be used as clocks or strobes except when gated with the Clock of the
HC390.
Output Drive Capability: 10 LSTTL Loads
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2 to 6 V
Low Input Current: 1 μA
High Noise Immunity Characteristic of CMOS Devices
In Compliance with the Requirements Defined by JEDEC Standard
No 7A
Chip Complexity: 244 FETs or 61 Equivalent Gates
LOGIC DIAGRAM
QA
QB
QC
QD
1, 15
4, 12
2, 14
3, 13
5, 11
6, 10
7, 9
PIN 16 = VCC
PIN 8 = GND
CLOCK A
RESET
CLOCK B
÷
2
COUNTER
÷
5
COUNTER
http://onsemi.com
D SUFFIX
SOIC PACKAGE
CASE 751B05
N SUFFIX
PLASTIC PACKAGE
CASE 64808
ORDERING INFORMATION
MC54HCXXXJ
MC74HCXXXN
MC74HCXXXD
Ceramic
Plastic
SOIC
1
16
1
16
J SUFFIX
CERAMIC PACKAGE
CASE 62010
1
16
PIN ASSIGNMENT
13
14
15
16
9
10
11
12
5
4
3
2
1
8
7
6
CLOCK Bb
QAb
RESET b
CLOCK Ab
VCC
QDb
QCb
QBb
CLOCK Ba
QAa
RESET a
CLOCK Aa
GND
QDa
QCa
QBa
FUNCTION TABLE
Clock
A
B
Reset
Action
X
H
Reset
÷ 2 and ÷ 5
X
L
Increment
÷ 2
X
L
Increment
÷ 5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC74HC390N | 制造商:Motorola Inc 功能描述:Counter, Up, 16 Pin, Plastic, DIP |
| MC74HC393AD | 功能描述:计数器移位寄存器 2-6V Dual 4-Stage RoHS:否 制造商:Texas Instruments 计数器类型: 计数顺序:Serial to Serial/Parallel 电路数量:1 封装 / 箱体:SOIC-20 Wide 逻辑系列: 逻辑类型: 输入线路数量:1 输出类型:Open Drain 传播延迟时间:650 ns 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装:Reel |
| MC74HC393ADG | 功能描述:计数器移位寄存器 2-6V Dual 4-Stage Binary RoHS:否 制造商:Texas Instruments 计数器类型: 计数顺序:Serial to Serial/Parallel 电路数量:1 封装 / 箱体:SOIC-20 Wide 逻辑系列: 逻辑类型: 输入线路数量:1 输出类型:Open Drain 传播延迟时间:650 ns 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装:Reel |
| MC74HC393ADR2 | 功能描述:计数器移位寄存器 2-6V Dual 4-Stage RoHS:否 制造商:Texas Instruments 计数器类型: 计数顺序:Serial to Serial/Parallel 电路数量:1 封装 / 箱体:SOIC-20 Wide 逻辑系列: 逻辑类型: 输入线路数量:1 输出类型:Open Drain 传播延迟时间:650 ns 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装:Reel |
| MC74HC393ADR2G | 功能描述:计数器移位寄存器 2-6V Dual 4-Stage Binary RoHS:否 制造商:Texas Instruments 计数器类型: 计数顺序:Serial to Serial/Parallel 电路数量:1 封装 / 箱体:SOIC-20 Wide 逻辑系列: 逻辑类型: 输入线路数量:1 输出类型:Open Drain 传播延迟时间:650 ns 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装:Reel |
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