- 您现在的位置：买卖IC网 > PDF目录29112 > M54HC191D1 (STMICROELECTRONICS) HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, CDIP16 PDF资料下载
参数资料
| 型号： | M54HC191D1 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 计数器 |
| 英文描述： | HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, CDIP16 |
| 封装： | CERAMIC, DIP-16 |
| 文件页数： | 6/13页 |
| 文件大小： | 389K |
| 代理商： | M54HC191D1 |
M54HC191
2/13
IEC LOGIC SYMBOLS
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE
X : Don’t Care
a - d: The level of steady state inputs a through d respectively
PIN N°
SYMBOL
NAME AND FUNCTION
3, 2, 6, 7
QA to QD
Flip-Flop Outputs
4
ENABLE
Count Enable Input
(Active LOW)
5D/U
Parallel Data Input
11
LOAD
Load Input (Active LOW)
12
MA/MI OUT Terminal Count Output
13
RCO
Ripple Clock Output
(Active LOW)
14
CLOCK
Clock Input (LOW to
HIGH, edge triggered)
15, 1, 10, 9
DA to DD
Data Inputs
8
GND
Ground (0V)
16
VCC
Positive Supply Voltage
INPUTS
OUTPUTS
FUNCTION
LOAD
ENABLE
D/U
CLOCK
QAQBQCQD
L
X
a
b
c
d
PRESET DATA
H
L
UP COUNT
H
L
H
DOWN COUNT
H
X
NO CHANGE
NO COUNT
H
X
NO CHANGE
NO COUNT
相关PDF资料 |
PDF描述 |
|---|---|
| M54HC193D | HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, CDIP16 |
| M54HC237D1 | HC/UH SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDIP16 |
| M54HC237K1 | HC/UH SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDFP16 |
| M54HC241HVF1R | HC/UH SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CDIP20 |
| M54HC257D | HC/UH SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, CDIP16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M54HC191F1R | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:4 BIT SYNCHRONOUS UP/DOWN COUNTERS |
| M54HC191K | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:RAD-HARD 4 BIT SYNCHRONOUS UP/DOWN COUNTERS |
| M54HC191K1 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:RAD-HARD 4 BIT SYNCHRONOUS UP/DOWN COUNTERS |
| M54HC191M1R | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:4 BIT SYNCHRONOUS UP/DOWN COUNTERS |
| M54HC192 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:SYNCHRONOUS UP/DOWN DECADE(,BINARY) COUNTER |
发布紧急采购，3分钟左右您将得到回复。