Revised January 1999 MM74C14
Hex Schmitt Trigger
General Description
The MM74C14 Hex Schmitt Trigger is a monolithic complementary MOS (CMOS) integrated circuit constructed with
N-and P-channel enhancement transistors. The positive
and negative going threshold voltages VT+ and VT−, show
low variation with respect to temperature (typ. 0.0005V/°C
at VCC = 10V), and hysteresis, VT+ − VT− ≥ 0.2 VCC is guaranteed. All inputs are protected from damage due to static discharge by diode clamps to VCC and GND. Features
■ Wide supply voltage range:
■ High noise immunity: 3.0V to 15V 0.70 VCC (typ.) ■ Low power: TTL compatibility:
0.4 VCC (typ.)
■ Hysteresis: 0.2 VCC guaranteed 0.4 VCC (typ.): 0.2 VCC guaranteed Ordering Code:
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 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 © 1999 Fairchild Semiconductor Corporation DS005879.prf www.fairchildsemi.com MM74C14 Hex Schmitt Trigger October 1987 MM74C14 Absolute Maximum Ratings(Note 1) Absolute Maximum VCC −0.3Vto VCC + 0.3V Voltage at Any Pin
Operating Temperature Range
Storage Temperature Range (Soldering, 10 seconds) −40°C to +85°C
−65°C to +150°C
700 mW Small Outline 260°C Note 1: “Absolute Maximum Ratings” are those values beyond which the
safety of the device cannot be guaranteed. Except for “Operating Temperature Range” they are not meant to imply that the devices should be operated at these limits. The Electrical Characteristics tables provide conditions
for actual device operation. Power Dissipation
Dual-In-Line 18V Lead Temperature 500mW Operating VCC Range 3.0V to 15V DC Electrical Characteristics
Min/Max limits apply across the guaranteed temperature range unless otherwise noted
Symbol Parameter Conditions Min Typ Max Units CMOS TO CMOS …