REI Datasheet MM74C914 Hex Schmitt Trigger with Extended Input Voltage 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 applications 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 VCC = 10V). And the hysteresis, VT+ - VT- ≥ 0.2 VCC is guaranteed. Rochester Electronics Manufactured Components Rochester branded components are manufactured using either die/wafers purchased from the original suppliers or Rochester wafers recreated from the original IP. All recreations are done with the approval of the OCM. Parts are tested using original factory test programs or Rochester developed test solutions to guarantee product meets or exceeds the OCM data sheet. Quality Overview • • • • ISO-9001 AS9120 certification Qualified Manufacturers List (QML) MIL-PRF-38535 • Class Q Military • Class V Space Level Qualified Suppliers List of Distributors (QSLD) • Rochester is a critical supplier to DLA and meets all industry and DLA standards. Rochester Electronics, LLC is committed to supplying products that satisfy customer expectations for quality and are equal to those originally supplied by industry manufacturers. The original manufacturer’s datasheet accompanying this document reflects the performance and specifications of the Rochester manufactured version of this device. Rochester Electronics guarantees the performance of its semiconductor products to the original OEM specifications. ‘Typical’ values are for reference purposes only. Certain minimum or maximum ratings may be based on product characterization, design, simulation, or sample testing. © 2013 Rochester Electronics, LLC. All Rights Reserved 08282013 To learn more, please visit www.rocelec.com Revised January 1999 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 applications 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 VCC = 10V). And the hysteresis, VT+ − VT− ≥ 0.2 VCC is guaranteed. Features ■ Hysteresis: ■ Special Range 0.45 VCC (typ.) 0.2 VCCguaranteed input protection: Extended Input Voltage ■ Wide supply voltage range: 3V to 15V ■ High noise immunity: 0.7 VCC (typ.) ■ Low power TTL compatibility: Fan out of 2 driving 74L Ordering Code: 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 Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Connection Diagrams Pin Assignments for DIP Special Input Protection Top View 8V ≈ 25V for the diodes. © 1999 Fairchild Semiconductor Corporation DS005917.prf www.fairchildsemi.com MM74C914 Hex Schmitt Trigger with Extended Input Voltage October 1987 MM74C914 Absolute Maximum Ratings(Note 1) Voltage at any Input Pin VCC − 25V to GND + 25V Voltage at any other Pin −0.3Vto VCC + 0.3V Operating Temperature Range (TA) Storage Temperature Range (TS) Operating VCC Range (Soldering, 10 seconds) −65°C to +150°C 700 mW 500mW 300°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 Small Outline 18V Lead Temperature (TL) −40°C to +85°C Dual-In-Line 3V to 15V Absolute Maximum (VCC) DC Electrical Characteristics Min/Max limits apply across temperature range unless otherwise noted Symbol Parameter Conditions Min Typ Max Units CMOS TO CMOS VT+ VT− VT+ − VT− Positive Going Threshold Voltage Negative Going Threshold Voltage Hysteresis VCC = 5V 3.0 3.6 4.3 V VCC = 10V 6.0 6.8 8.6 V 12.9 VCC = 15V 9.0 10 VCC = 5V 0.7 1.4 2.0 V VCC = 10V 1.4 3.2 4.0 V VCC = 15V 2.1 5 6.0 VCC = 5V 1.0 2.2 3.6 V VCC = 10V 2.0 3.6 7.2 V 5 10.8 VCC = 15V 3.0 VCC = 5V, IO = −10 µA 4.5 VCC = 10V, IO = −10 µA 9.0 VOUT(1) Logical“1” Output Voltage VOUT(0) Logical “0” Output Voltage VCC = 5V, IO = +10 µA IIN(1) Logical “1” Input Current VCC = 15V, VIN = 25V IIN(0) Logical “0” Input Current VCC = 15V, VIN = −10V ICC Supply Current VCC = 15V, VIN = − 10V/25V V 0.5 VCC = 10V, IO = +10 µA 0.005 −100 V V 1.0 V 5.0 µA −0.005 0.05 V µA 300 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 VCC = 4.75V, IO = −360 µA VOUT(0) Logical “0” Output Voltage 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) (Short Circuit Current) ISOURCE Output Source Current VCC = 5V, VOUT = 0V, TA = 25°C −1.75 −3.3 mA VCC = 10V, VOUT = 0V, TA = 25°C −8.0 −15 mA VCC = 5V, VOUT = VCC, TA = 25°C 1.75 3.6 mA VCC = 10V, VOUT = VCC, TA = 25°C 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 input is at ½ VCC, the others are either at VCC or GND. www.fairchildsemi.com 2 (Note 3) Symbol tPHL Parameter Conditions Min Typ Max Units 220 400 ns VCC = 10V 80 200 Propagation Delay from Input to Output VCC = 5V tPLH ns CIN Input Capacitance Any Input (Note 4) 5 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 Performance Characteristics Typical Transfer Characteristics Guaranteed Trip Point Range Typical Application Note: VCC1 = VCC2 GND1 = GND2 3 www.fairchildsemi.com MM74C914 AC Electrical Characteristics TA = 25°C, CL = 50 pF, unless otherwise specified MM74C914 Physical Dimensions inches (millimeters) unless otherwise noted 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150” Narrow Package Number M14A www.fairchildsemi.com 4 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. MM74C914 Hex Schmitt Trigger with Extended Input Voltage Physical Dimensions inches (millimeters) unless otherwise noted (Continued)