Fairchild Semiconductor MM74C14N, MM74C14MX, MM74C14CW, MM74C14M Datasheet

October 1987
Revised January 1999

MM74C14 Hex Schmitt Trigger

© 1999 Fairchild Semiconductor Corporation DS005879.prf www.fairchildsemi.com

MM74C14
Hex Schmitt Trigger

General Description

The MM74C14 Hex Schmitt Trigger is a monolithic comple­mentary MOS (CMOS ) integrated circuit constructed w ith
N- and P-channel enha ncement transistors. The positive
and negative going thre shold voltages V

T+

and VT−, show

low variation with respect to temperatu re (typ. 0.0005V/°C
at V

CC

= 10V), and hysteresis, VT+− VT−≥ 0.2 VCC is guar-

anteed.

All inputs are protected from damage due to static dis­charge by diode clamps t o V

CC

and GND.

Features

■ Wide supply voltage range: 3.0V to 15V

■ High noise immunity: 0.70 V

CC

(typ.)

■ Low power: TTL compatibility:

0.4 V

CC

(typ.) 0.2 VCC guaranteed

■ Hysteresis: 0.4 V

CC

(typ.): 0.2 VCC guaranteed

Ordering Code:

Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.

Connection Diagram

Pin Assignments for DIP and SOIC

Top View

Order Number Package Number Package Description

MM74C14M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150” Narrow
MM74C14N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide

www.fairchildsemi.com 2

MM74C14

Absolute Maximum Ratings(Note 1)

Note 1: “Absolute Maxi mum Ratings” are those valu es beyond which the

safety of the device cannot be guaranteed. Ex ce pt for “O perating Tempera­ture Range” they are not mean t to imply that the devices sho uld be oper­ated at these limits. The Electrical Charac t eristics tables provide conditions
for actual device operation.

DC Electrical Characteristics

Min/Max limits apply across the guaranteed temperature range unless otherwise noted

Note 2: Only one of the six inputs is at ½ VCC; the others are either at VCC or GND.

Voltage at Any Pin −0.3Vto VCC + 0.3V
Operating Temperature Range −40°C to +85°C
Storage Temperature Range −65°C to +150°C
Power Dissipation

Dual-In-Line 700 mW
Small Outline 500mW

Operating V

CC

Range 3.0V to 15V

Absolute Maximum V

CC

18V

Lead Temperature

(Soldering, 10 seconds) 260°C

Symbol Parameter Conditions Min Typ Max Units

CMOS TO CMOS

V

T+

Positive Going Threshold Voltage VCC = 5V 3.0 3.6 4.3 V

VCC = 10V 6.0 6.8 8.6 V
VCC = 15V 9.0 10.0 12.9 V

V

T−

Negative Going Threshold Voltage VCC = 5V 0.7 1.4 2.0 V

VCC = 10V 1.4 3.2 4.0 V
VCC = 15V 2.1 5.0 6.0 V

VT+–V

T−

Hysteresis VCC = 5V 1.0 2.2 3.6 V

VCC = 10V 2.0 3.6 7.2 V
VCC = 15V 3.0 5.0 10.8 V

V

OUT(1)

Logical “1” Output Voltage VCC = 5V, IO = −10 µA4.5 V

VCC = 10V, IO = −10 µA9.0 V

V

OUT(0)

Logical “0” Output Voltage VCC = 5V, IO = 10 µA0.5V

VCC = 10V, IO = 10 µA1.0V

I

IN(1)

Logical “1” Input Current VCC = 15V, VIN = 15V 0.005 1.0 µA

I

IN(0)

Logical “0” Input Current VCC = 15V, VIN = 0V −1.0 −0.005 µA

I

CC

Supply Current VCC = 15V, VIN = 0V/15V 0.05 15 µA

VCC = 5V, VIN = 2.5V (Note 2) 20 µA
VCC = 10V, VIN = 5V (Note 2) 200 µA
VCC = 15V, VIN = 7.5V (Note 2) 600 µA

CMOS/LPTTL INTERFACE

V

IN(1)

Logical “1” Input Voltage VCC = 5V 4.3 V

V

IN(0)

Logical “0” Input Voltage VCC = 5V 0.7 V

V

OUT(1)

Logical “1” Output Voltage 74C, VCC = 4.75V, IO = −360 µA2.4 V

V

OUT(0)

Logical “0” Output Voltage 74C, VCC = 4.75V, IO = 360 µA0.4V

OUTPUT DRIVE (see Family Characteristics Data Sheet) TA = 25°C (Short Circuit Current)

I

SOURCE

Output Source Current VCC = 5V, V

OUT

= 0V −1.75 −3.3 mA

(P-Channel)

I

SOURCE

Output Source Current VCC = 10V, V

OUT

= 0V −8.0 −15 mA

(P-Channel)

I

SINK

Output Sink Current VCC = 5V, V

OUT

= V

CC

1.75 3.6 mA

(N-Channel)

I

SINK

Output Sink Current VCC = 10V, V

OUT

= V

CC

8.0 16 mA

(N-Channel)