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参数资料
| 型号： | 74F191LMQB |
| 厂商： | National Semiconductor Corporation |
| 元件分类： | 通用总线功能 |
| 英文描述： | Up/Down Binary Counter with Preset and Ripple Clock |
| 中文描述： | 向上/向下二进制计数器的预置和波纹时钟 |
| 文件页数： | 6/10页 |
| 文件大小： | 187K |
| 代理商： | 74F191LMQB |
AC Operating Requirements
74F
54F
74F
Symbol
Parameter
T
A
e a
25
§
C
V
CC
e a
5.0V
T
A
, V
CC
e
Mil
T
A
, V
CC
e
Com
Units
Min
Max
Min
Max
Min
Max
t
s
(H)
t
s
(L)
Setup Time, HIGH or LOW
P
n
to PL
4.5
4.5
6.0
6.0
5.0
5.0
ns
t
h
(H)
t
h
(L)
Hold Time, HIGH or LOW
P
n
to PL
2.0
2.0
2.0
2.0
2.0
2.0
t
s
(L)
Setup Time LOW
CE to CP
10.0
10.5
10.0
ns
t
h
(L)
Hold Time LOW
CE to CP
0
0
0
t
s
(H)
t
s
(L)
Setup Time, HIGH or LOW
U/D to CP
12.0
12.0
12.0
12.0
12.0
12.0
ns
t
h
(H)
t
h
(L)
Hold Time, HIGH or LOW
U/D to CP
0
0
0
0
0
0
t
w
(L)
PL Pulse Width LOW
6.0
8.5
6.0
ns
t
w
(L)
CP Pulse Width LOW
5.0
7.0
5.0
ns
t
rec
Recovery Time
PL to CP
6.0
7.5
6.0
ns
Ordering Information
The device number is used to form part of a simplified purchasing code where the package type and temperature range are
defined as follows:
74F
191
S
C
X
Temperature Range Family
74F
e
Commercial
54F
e
Military
Special Variations
X
e
Devices shipped in 13
×
reels
QB
e
Military grade with environmental
and burn-in processing shipped
in tubes
Device Type
Package Code
P
e
Plastic DIP
D
e
Ceramic DIP
F
e
Flatpak
L
e
Leadless Ceramic Chip Carrier (LCC)
S
e
Small Outline SOIC JEDEC
SJ
e
Small Outline SOIC EIAJ
Temperature Range
C
e
Commercial (0
§
C to
a
70
§
C)
M
e
Military (
b
55
§
C to
a
125
§
C)
6
相关PDF资料 |
PDF描述 |
|---|---|
| 74F191LMX | Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191PCQB | Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191PCX | Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191PMQB | Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191PMX | Up/Down Binary Counter with Preset and Ripple Clock |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 74F191LMX | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Up/Down Binary Counter with Preset and Ripple Clock |
| 74F191N | 制造商:North American Philips Discrete Products Div 功能描述:Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP 制造商:NXP Semiconductors 功能描述:Counter, Up/Down, 4 Bit Binary, 16 Pin, Plastic, DIP |
| 74F191PC | 功能描述:计数器移位寄存器 Up/Down Binary Ctr 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 |
| 74F191PC | 制造商:Fairchild Semiconductor Corporation 功能描述:Counter Logic IC |
| 74F191PC_Q | 功能描述:计数器 IC Up/Down Binary Ctr RoHS:否 制造商:NXP Semiconductors 计数器类型:Binary Counters 逻辑系列:74LV 位数:10 计数法: 计数顺序: 工作电源电压:1 V to 5.5 V 工作温度范围:- 40 C to + 125 C 封装 / 箱体:SOT-109 封装:Reel |
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