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 VT+ VT− VT+–VT− VOUT(1) VOUT(0) Positive Going Threshold Voltage Negative Going Threshold Voltage Hysteresis Logical “1” Output Voltage Logical “0” Output Voltage VCC = 5V 3.0 3.6 4.3 V VCC = 10V 6.0 6.8 8.6 V V VCC = 15V 9.0 10.0 12.9 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 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 VCC = 5V, IO = −10 µA 4.5 VCC = 10V, IO = −10 µA 9.0 V V VCC = 5V, IO = 10 µA 0.5 VCC = 10V, IO = 10 µA 1.0 V 1.0 µA IIN(1) Logical “1” Input Current VCC = 15V, VIN = 15V IIN(0) Logical “0” Input Current VCC = 15V, VIN = 0V ICC Supply Current VCC = 15V, VIN = 0V/15V 0.005 −1.0 −0.005 0.05 V µA 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 VIN(1) Logical “1” Input Voltage VCC = 5V VIN(0) Logical “0” Input Voltage VCC = 5V VOUT(1) Logical “1” Output Voltage 74C, VCC = 4.75V, IO = −360 µA VOUT(0) Logical “0” Output Voltage 74C, VCC = 4.75V, IO = 360 µA 4.3 V 0.7 2.4 V V 0.4 V OUTPUT DRIVE (see Family Characteristics Data Sheet) TA = 25°C (Short Circuit Current) ISOURCE Output Source Current VCC = 5V, VOUT = 0V −1.75 −3.3 mA VCC = 10V, VOUT = 0V −8.0 −15 mA VCC = 5V, VOUT = VCC 1.75 3.6 mA VCC = 10V, VOUT = VCC 8.0 16 mA (P-Channel) ISOURCE Output Source Current (P-Channel) ISINK Output Sink Current (N-Channel) ISINK Output Sink Current (N-Channel) Note 2: Only one of the six inputs is at ½ VCC; the others are either at VCC or GND. www.fairchildsemi.com 2 (Note 3) Typ Max tPD0 Symbol Propagation Delay from Input Parameter VCC = 5V Conditions Min 220 400 Units n tPD1 to Output VCC = 10V 80 200 ns CIN Input Capacitance Any Input (Note 4) 5.0 pF CPD Power Dissipation Capacitance Per Gate (Note 5) 20 pF Note 3: AC Parameters are guaranteed by DC correlated testing. Note 4: Capacitance is guaranteed by periodic testing. Note 5: CPD determines the no load AC power consumption of any CMOS device. For complete explanation see Family Characteristics Application Note— AN-90. Typical Applications Low Power Oscillator Note: The equations assume t1 + t2 >> tpd0 +tpd1 3 www.fairchildsemi.com MM74C14 AC Electrical Characteristics TA = 25°C, CL = 50 pF, unless otherwise specified MM74C14 Typical Performance Characteristics Typical Transfer Characteristics Guaranteed Trip Point Range Note: For more information on output drive characteristics, power dissipation, and propagation delays, see AN-90. www.fairchildsemi.com 4 MM74C14 Physical Dimensions inches (millimeters) unless otherwise noted 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150” Narrow Package Number M14A 5 www.fairchildsemi.com MM74C14 Hex Schmitt Trigger Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide Package Number N14A LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support 1. Life support devices or systems are devices or systems device or system whose failure to perform can be reawhich, (a) are intended for surgical implant into the sonably expected to cause the failure of the life support body, or (b) support or sustain life, and (c) whose failure device or system, or to affect its safety or effectiveness. to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the www.fairchildsemi.com user. Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications.