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MM74C914 Datasheet(PDF) 1 Page - Fairchild Semiconductor

Part No. MM74C914
Description  Hex Schmitt Trigger with Extended Input Voltage
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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MM74C914 Datasheet(HTML) 1 Page - Fairchild Semiconductor

   
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October 1987
Revised January 1999
© 1999 Fairchild Semiconductor Corporation
DS005917.prf
www.fairchildsemi.com
MM74C914
Hex Schmitt Trigger with Extended Input Voltage
General Description
The MM74C914 is a monolithic CMOS Hex Schmitt trigger
with special input protection scheme. This scheme allows
the input voltage levels to exceed VCC or ground by at least
10V (VCC −25V to GND + 25V), and is valuable for applica-
tions involving voltage level shifting or mismatched power
supplies.
The positive and negative-going threshold voltages, VT+
and VT−, show low variation with respect to temperature
(typ 0.0005V/
°C at V
CC = 10V). And the hysteresis, VT
+
VT− ≥ 0.2 VCC is guaranteed.
Features
s Hysteresis:
0.45 VCC (typ.) 0.2 VCCguaranteed
s Special input protection: Extended Input Voltage
Range
s Wide supply voltage range: 3V to 15V
s High noise immunity: 0.7 VCC (typ.)
s Low power TTL compatibility: Fan out of 2 driving 74L
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Connection Diagrams
Pin Assignments for DIP
Top View
Special Input Protection
8V
≈ 25V
for the diodes.
Order Number
Package Number
Package Description
MM74C914M
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150” Narrow
MM74C914N
N14A
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide


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