MM74C914M

October 1987
Revised January 1999
MM74C914 Hex Schmitt Trigger with Extended Input Voltage
© 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 V
CC
or ground by at least
10V (V
CC
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, V
T+
and V
T
, show low variation with respect to temperature
(typ 0.0005V/°C at V
CC
= 10V). And the hysteresis, V
T+
V
T
0.2 V
CC
is guaranteed.
Features
Hysteresis: 0.45 V
CC
(typ.) 0.2 V
CC
guaranteed
Special input protection: Extended Input Voltage
Range
Wide supply voltage range: 3V to 15V
High noise immunity: 0.7 V
CC
(typ.)
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
www.fairchildsemi.com 2
MM74C914
Absolute Maximum Ratings(Note 1)
Note 1: “Absolute Maximum Ratings” are those values beyond which the
safety of the device cannot be guaranteed. Except for “Operating Tempera-
ture Range”, they are not meant to imply that the devices should be oper-
ated at these limits. The Electrical Characteristics tables provide conditions
for actual device operation.
DC Electrical Characteristics
Min/Max limits apply across temperature range unless otherwise noted
Note 2: Only one input is at ½ V
CC
, the others are either at V
CC
or GND.
Voltage at any Input Pin V
CC
25V to GND + 25V
Voltage at any other Pin 0.3Vto V
CC
+ 0.3V
Operating Temperature Range (T
A
) 40°C to +85°C
Storage Temperature Range (T
S
) 65°C to +150°C
Power Dissipation
Dual-In-Line 700 mW
Small Outline 500mW
Operating V
CC
Range 3V to 15V
Absolute Maximum (V
CC
) 18V
Lead Temperature (T
L
)
(Soldering, 10 seconds) 300°C
Symbol Parameter Conditions Min Typ Max Units
CMOS TO CMOS
V
T+
Positive Going Threshold Voltage V
CC
= 5V 3.0 3.6 4.3 V
V
CC
= 10V 6.0 6.8 8.6 V
V
CC
= 15V 9.0 10 12.9
V
T
Negative Going Threshold Voltage V
CC
= 5V 0.7 1.4 2.0 V
V
CC
= 10V 1.4 3.2 4.0 V
V
CC
= 15V 2.1 5 6.0
V
T+
V
T
Hysteresis V
CC
= 5V 1.0 2.2 3.6 V
V
CC
= 10V 2.0 3.6 7.2 V
V
CC
= 15V 3.0 5 10.8 V
V
OUT(1)
Logical“1” Output Voltage V
CC
= 5V, I
O
= 10 µA4.5 V
V
CC
= 10V, I
O
= 10 µA9.0 V
V
OUT(0)
Logical “0” Output Voltage V
CC
= 5V, I
O
= +10 µA0.5V
V
CC
= 10V, I
O
= +10 µA1.0V
I
IN(1)
Logical “1” Input Current V
CC
= 15V, V
IN
= 25V 0.005 5.0 µA
I
IN(0)
Logical “0” Input Current V
CC
= 15V, V
IN
= 10V 100 0.005 µA
I
CC
Supply Current V
CC
= 15V, V
IN
= 10V/25V 0.05 300 µA
V
CC
= 5V, V
IN
= 2.5V (Note 2) 20 µA
V
CC
= 10V, V
IN
= 5V (Note 2) 200 µA
V
CC
= 15V, V
IN
= 7.5V (Note 2) 600 µA
CMOS/LPTTL INTERFACE
V
IN(1)
Logical “1” Input Voltage V
CC
= 5V 4.3 V
V
IN(0)
Logical “0” Input Voltage V
CC
= 5V 0.7 V
V
OUT(1)
Logical “1” Output Voltage V
CC
= 4.75V, I
O
= 360 µA2.4 V
V
OUT(0)
Logical “0” Output Voltage V
CC
= 4.75V, I
O
= 360 µA0.4V
OUTPUT DRIVE (See Family Characteristics Data Sheet) (Short Circuit Current)
I
SOURCE
Output Source Current V
CC
= 5V, V
OUT
= 0V, T
A
= 25°C 1.75 3.3 mA
(P-Channel)
I
SOURCE
Output Source Current V
CC
= 10V, V
OUT
= 0V, T
A
= 25°C 8.0 15 mA
(P-Channel)
I
SINK
Output Sink Current V
CC
= 5V, V
OUT
= V
CC
, T
A
= 25°C 1.75 3.6 mA
(N-Channel)
I
SINK
Output Sink Current V
CC
= 10V, V
OUT
= V
CC
, T
A
= 25°C8.016 mA
(N-Channel)
3 www.fairchildsemi.com
MM74C914
AC Electrical Characteristics (Note 3)
T
A
= 25°C, C
L
= 50 pF, unless otherwise specified
Note 3: AC Parameters are guaranteed by DC correlated testing.
Note 4: Capacitance is guaranteed by periodic testing.
Note 5: C
PD
determines the no load AC power consumption of any CMOS device. For complete explanation see Family Characteristics Application Note,
AN-90.
Typical Performance Characteristics
Typical Transfer Characteristics
Guaranteed Trip Point Range
Typical Application
Note: V
CC1
= V
CC2
GND1 = GND2
Symbol Parameter Conditions Min Typ Max Units
t
PHL
Propagation Delay from Input to Output V
CC
= 5V 220 400 ns
t
PLH
V
CC
= 10V 80 200 ns
C
IN
Input Capacitance Any Input (Note 4) 5 pF
C
PD
Power Dissipation Capacitance Per Gate (Note 5) 20 pF

MM74C914M

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
IC INVERTER SCHMITT 6CH 14SOIC
Lifecycle:
New from this manufacturer.
Delivery:
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