MM54C14/MM74C14 Hex Schmitt Trigger General Description Features The MM54C14/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 a and VTb, show low variation with respect to temperature (typ. 0.0005V/§ C at VCC e 10V), and hysteresis, VT a b VTb t 0.2 VCC is guaranteed. All inputs are protected from damage due to static discharge by diode clamps to VCC and GND. Y Y Y Y Wide supply voltage range High noise immunity Low power TTL compatibility Hysteresis 3.0V to 15V 0.70 VCC (typ.) 0.4 VCC (typ.) 0.2 VCC guaranteed 0.4 VCC (typ.) 0.2 VCC guaranteed Connection Diagram Dual-In-Line Package TL/F/5879 – 1 Top View Order Number MM54C14 or MM74C14 C1995 National Semiconductor Corporation TL/F/5879 RRD-B30M105/Printed in U. S. A. MM54C14/MM74C14 Hex Schmitt Trigger February 1988 Absolute Maximum Ratings Voltage at Any Pin b 0.3V to VCC a 0.3V Operating Temperature Range MM54C14 MM74C14 b 65§ C to a 150§ C Storage Temperature Range Power Dissipation Dual-In-Line Small Outline Operating VCC Range If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. b 55§ C to a 125§ C b 40§ C to a 85§ C 700 mW 500 mW 3.0V to 15V 18V Absolute Maximum VCC Lead Temperature (Soldering, 10 seconds) 260§ C 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 a VTb VT a – VTb VOUT(1) Positive Going Threshold Voltage Negative Going Threshold Voltage Hysteresis Logical ‘‘1’’ Output Voltage VCC e 5V 3.0 3.6 4.3 V VCC e 10V 6.0 6.8 8.6 V VCC e 15V 9.0 10.0 12.9 V VCC e 5V 0.7 1.4 2.0 V VCC e 10V 1.4 3.2 4.0 V VCC e 15V 2.1 5.0 6.0 V VCC e 5V 1.0 2.2 3.6 V VCC e 10V 2.0 3.6 7.2 V VCC e 15V 3.0 5.0 10.8 V VCC e 5V, IO e b10 mA 4.5 VCC e 10V, IO e b10 mA 9.0 VOUT(0) Logical ‘‘0’’ Output Voltage IIN(1) Logical ‘‘1’’ Input Current VCC e 15V, VIN e 15V IIN(0) Logical ‘‘0’’ Input Current VCC e 15V, VIN e 0V Supply Current VCC e 15V, VIN e 0V/15V V V VCC e 5V, IO e 10 mA 0.5 VCC e 10V, IO e 10 mA ICC 0.005 b 1.0 1.0 V 1.0 mA b 0.005 0.05 V mA 15 mA VCC e 5V, VIN e 2.5V (Note 4) 20 mA VCC e 10V, VIN e 5V (Note 4) 200 mA VCC e 15V, VIN e 7.5V (Note 4) 600 mA CMOS/LPTTL INTERFACE VIN(1) Logical ‘‘1’’ Input Voltage VCC e 5V VIN(0) Logical ‘‘0’’ Input Voltage VCC e 5V Logical ‘‘1’’ Output Voltage 54C, VCC e 4.5V, IO e b360 mA 2.4 74C, VCC e 4.75V, IO e b360 mA 2.4 VOUT(1) VOUT(0) Logical ‘‘0’’ Output Voltage 4.3 V 0.7 V V V 54C, VCC e 4.5V, IO e 360 mA 0.4 V 74C, VCC e 4.75V, IO e 360 mA 0.4 V OUTPUT DRIVE (see 54C/74C Family Characteristics Data Sheet) TA e 25§ C (Short Circuit Current) ISOURCE Output Source Current (P-Channel) VCC e 5V, VOUT e 0V ISOURCE Output Source Current (P-Channel) ISINK ISINK b 1.75 b 3.3 mA VCC e 10V, VOUT e 0V b 8.0 b 15 mA Output Sink Current (N-Channel) VCC e 5V, VOUT e VCC 1.75 3.6 mA Output Sink Current (N-Channel) VCC e 10V, VOUT e VCC 8.0 16 mA 2 AC Electrical Characteristics* TA e 25§ C, CL e 50 pF, unless otherwise specified Symbol tPD0, tPD1 Parameter Conditions Propagation Delay from Input to Output Typ Max Units VCC e 5V Min 220 400 ns VCC e 10V 80 200 ns CIN Input Capacitance Any Input (Note 2) 5.0 pF CPD 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 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: CPD determines the no load AC power consumption of any CMOS device. For complete explanation see 54C/74C Family Characteristics Application NoteÐAN-90. Note 4: Only one of the six inputs is at (/2 VCC; the others are either at VCC or GND. Typical Applications Low Power Oscillator TL/F/5879 – 2 VT a t1 & RC fin VT b VCC b VTb t1 & RC fin VCC b VT a f& 1 1 & 1.7 RC VT a (VCC b VTb) RC fin VTb (VCC b VT a ) Note: The equations assume t1 a t2 n tpd0 a tpd1 TL/F/5879 – 3 3 Typical Performance Characteristics Typical Transfer Characteristics Guaranteed Trip Point Range TL/F/5879 – 5 TL/F/5879 – 4 TL/F/5879 – 6 Note: For more information on output drive characteristics, power dissipation, and propagation delays, see AN-90. 4 Physical Dimensions inches (millimeters) Ceramic Dual-In-Line Package (J) Order Number MM54C14J or MM74C14J NS Package Number J14A 5 MM54C14/MM74C14 Hex Schmitt Trigger Physical Dimensions inches (millimeters) (Continued) Molded Dual-In-Line Package (N) Order Number MM54C14N or MM74C14N NS Package Number N14A LIFE SUPPORT POLICY NATIONAL’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 NATIONAL SEMICONDUCTOR CORPORATION. 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