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參數(shù)資料
| 型號(hào)： | MM54C914 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Hex Schmitt Trigger with Extended Input Voltage(帶擴(kuò)展輸入電壓的六路施密特觸發(fā)器) |
| 中文描述： | 六角施密特觸發(fā)器與擴(kuò)展輸入電壓（帶擴(kuò)展輸入電壓的六路施密特觸發(fā)器） |
| 文件頁(yè)數(shù)： | 1/4頁(yè) |
| 文件大小： | 116K |
| 代理商： | MM54C914 |
TL/F/5917
M
February 1988
MM54C914/MM74C914 Hex Schmitt
Trigger with Extended Input Voltage
General Description
The MM54C914/MM74C914 is a monolithic CMOS Hex
Schmitt trigger with special input protection scheme. This
scheme allows the input voltage levels to exceed V
CC
or
ground by at least 10V (V
CC
b
25V to GND
a
25V), and is
valuable for applications involving voltage level shifting or
mismatched power supplies.
The positive and negative-going threshold voltages, V
T
a
and V
T
b
, show low variation with respect to temperature
(typ 0.0005V/
§
C at V
CC
e
10V). And the hysteresis,
V
T
a
b
V
T
b
t
0.2 V
CC
is guaranteed.
Features
Y
Hysteresis
0.45 V
CC
(typ.)
0.2 V
CC
guaranteed
Extended Input
Voltage Range
3V to 15V
0.7 V
CC
(typ.)
Fan out of 2
driving 74L
Y
Special input protection
Y
Wide supply voltage range
Y
High noise immunity
Y
Low power TTL
compatibility
Connection Diagram
Dual-In-Line Package
TL/F/5917–1
Top View
Order Number MM54C914 or MM74C914
Special Input Protection
8V
&
25V
for the diodes.
TL/F/5917–2
C
1995 National Semiconductor Corporation
RRD-B30M105/Printed in U. S. A.
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