national semiconductor MM54C914/MM74C914 Hex Schmitt Trigger with Extended Input Voltage handbook
Contents
1. 0 508 1 524 aan 0 018 0 003 0 457 20 grea 7874 1041 0 125 0 200 2 489 3 175 5 080 MAX BOTH ENDS 0 100 20 070 0 150 2 540 0 254 540 0 254 Ban MIN 14A REV G Ceramic Dual In Line Package J Order Number MM54C914J or MM74C914J NS Package Number J14A z mmnm gt 0 090 286 a CD Emz mni rrera 0 092 pya 0 030 MAX 42 337 0 762 DEPTH OPTION 1 OPTION 02 A 0 300 0 320 af i 7 520 8 128 0 065 a bison Am imn pe Te 0 020 90 4 TYP sae gt Ta 16 a B 175 3 810 7 905 E0 381 ts a 0 014 0 023 ea sary CTE aro oz as 0040 eass tosa nari Molded Dual In Line Package N Order Number MM54C914 N or MM74C914N NS Package Number N14A LIFE SUPPORT POLICY NATIONAL S PRODUCTS ARE NOT AUTHORIZED FOR US DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTE SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or 2 systems which a are intended for surgical implant into the body or b support or sustain life and whose failure 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 user E AS CRITICAL COMPONENTS IN LIFE SUPPORT N APPROVAL OF THE PRESIDENT OF NATIONAL A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause th2. not meant to imply that the devices should be operated at these limits The table of Electrical Characteristics provides conditions for actual device operation Note 2 Capacitance is guaranteed by periodic testing Note 3 Cpp determines the no load AC power consumption of any CMOS device For complete explanation see 54C 74C Family Characteristics Application Note AN 90 Note 4 Only one input is at 1 Vcc the others are either at Vcc or GND Typical Performance Characteristics Typical Transfer Characteristics OUTPUT VOLTAGE V 10 15 INPUT VOLTAGE V 20 TL F 5917 4 Vec Vre INPUT VOLTAGE V OUTPUT VOLTAGE ov TL F 5917 6 Guaranteed Trip Point Range MM54C14 55 C TO 125 C MM74C14 40 C TO 85 C MINIMUM HYSTERESIS SPREAD 0 2 Vcc INPUT VOLTAGE V TL F 5917 5 Typical Application Veer Vec2 Vec2 MM540914 MM74C914 TL F 5917 3 Note Vcc Vcc2 GND1 GND2 th Extended Input Voltage igger wi MM54C914 MM74C914 Hex Schmitt Tr Physical Dimensions inches millimeters 0 785 lt 19 839 MAX 0 025 0 635 RAD 9 220 0 310 6 588 7 874 0 290 0 320 0 005 0 200 7 366 8 128 azn GLASS 0 060 0 005 5 080 SEALANT 1 524 10 127 MAX 9 n20 0 060 0 180 4 572 10 MAX 0 310 0 410 86 94 TYP 0 008 0 012 0 203 0 305 203 0 305 0 098 L i
3. 0 0 MM54C914 O O vationat Semiconductor MM54C914 MM74C914 Hex Schmitt Trigger with Extended Input Voltage General Description The MM54C914 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 V7 and Vt_ show low variation with respect to temperature typ 0 0005V C at Vcc 10V And the hysteresis Vt Vrt 0 2 Vcc is guaranteed February 1988 Features m Hysteresis 0 45 Vcc typ 0 2 Voc guaranteed Extended Input Voltage Range m Special input protection m Wide supply voltage range 3V to 15V m High noise immunity 0 7 Vcc typ m Low power TTL Fan out of 2 compatibility driving 74L Connection Diagram Dual In Line Package TL F 5917 1 Top View Special Input Protection Vee INPUT 8V 25V for the diodes Order Number MM54C914 or MM74C914 TO GATE TL F 5917 2 1995 National Semiconductor Corporation TL F 5917 RRD B30M105 Printed in U S A obeyOA yndu papus xy YWM 1966111 WIWYS X9H FL6OPZININ VL6OPVSININ Absolute Maximum Ratings note 1 If Military Aerospace specified devices are required please contact the National Semiconductor Sales Storage Temper
4. V Note 4 20 pA Voc 10V Vin 5V Note 4 200 pA Voc 15V Vin 7 5V Note 4 600 pA CMOS LPTTL INTERFACE VING Logical 1 Input Voltage Vcc 5V 4 3 V VIN 0 Logical 0 Input Voltage Vcc 5V 0 7 V VouT 1 Logical 1 Output Voltage 54C Vcc 4 5V lo 360 pA 2 4 Vv 74C Voc 4 75V lo 360 pA 2 4 V VouT o Logical 0 Output Voltage 54C Voc 4 5V lo 360 pA 0 4 Vv 74C Voc 4 75V lo 360 pA 0 4 V OUTPUT DRIVE See 54C 74C Family Characteristics Data Sheet Short Circuit Current ISOURCE Output Source Current Voc 5V Vout OV Ta 25 C 1 75 3 3 NA P Channel ISOURCE Output Source Current Voc 10V Vout OV Ta 25 C 80 45 mA P Channel ISINK Output Sink Current Voc 5V Vout Vcc Ta 25 C 1 75 36 AWN N Channel ISINK Output Sink Current Voc 10V Vout Vcc Ta 25 C 8 0 16 mA N Channel AC Electrical Characteristics 1 25 c CL 50 pF unless otherwise specified Symbol Parameter Conditions Min Typ Max Units tPHL Propagation Delay from Input to Output Voc 5V 220 400 ns tPLH Vcc 10V 80 200 ns Cin Input Capacitance Any Input Note 2 5 pF Cpp Power Dissipation Capacitance Note 3 Per Gate 20 pF AC Parameters are guaranteed by DC correlated testing 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
5. ature Range Ts Power Dissipation 65 C to 150 C Office Distributors for availability and specifications Dual In Line Voltage at any Input Pin Voc 25V to GND 25V Small Outline Voltage at any other Pin 0 3V to Vcc 0 3V Operating Vcc Range Operating Temperature Range Ta MM54C914 MM74C914 55 C to 125 C 40 C to 85 C Lead Temperature T Absolute Maximum Vcc Soldering 10 seconds 700 mW 500 mW 3V to 15V DC Electrical Characteristics min max limits apply across temperature range unless otherwise noted 18V 300 C Symbol Parameter Conditions Min Typ Max Units CMOS TO CMOS VT 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 12 9 VT 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 6 0 Vt Vt Hysteresis Vcc 5V 1 0 2 2 3 6 V Vcc 10V 2 0 3 6 7 2 V Vcc 15V 3 0 5 10 8 V VouT 1 Logical 1 Output Voltage Voc 5V lo 10 pA 4 5 V Vcc 10V lo 10 pA 9 0 V VouT o Logical 0 Output Voltage Voc 5V lo 10 pA 0 5 Vv Voc 10V lo 10 uA 1 0 Vv lin t Logical 1 Input Current Voc 15V Vin 25V 0 005 5 0 pA lIN 0 Logical 0 Input Current Voc 15V Vin 10V 100 0 005 pA Icc Supply Current Voc 15V Vin 10V 25V 0 05 300 pA Voc 5V Vin 2 5
6. e failure of the life support device or system or to affect its safety or effectiveness National Semiconductor National Semiconductor N Corporation Europe 1111 West Bardin Road Fax 49 0 180 530 85 86 Arlington TX 76017 Email cnjwge tevm2 nsc com Tel 1 800 272 9959 Deutsch Tel 49 0 180 530 85 85 Fax 1 800 737 7018 English Tel 49 0 180 532 78 32 Fran ais Tel 49 0 180 532 93 58 Italiano Tel 49 0 180 534 16 80 National Semiconductor Japan Ltd Tel 81 043 299 2309 Fax 81 043 299 2408 National Semiconductor Hong Kong Ltd 13th Floor Straight Block Ocean Centre 5 Canton Rd Tsimshatsui Kowloon Hong Kong Tel 852 2737 1600 Fax 852 2736 9960 National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications
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