DM7420 FAIRCHILD | Alldatasheet

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© 2000 Fairchild Semiconductor Corporation DS006506 www.fairchildsemi.com August 1986 Revised February 2000 DM7420 Dual 4-Input NAND Gate DM7420 Dual 4-Input NAND Gate General Description This device contains two independent gates each of which performs the logic NAND function. Ordering Code: Connection Diagram Function Table Y = ABCD H = HIGH Logic Level L = LOW Logic Level X = Either LOW or HIGH Logic Level Order Number Package Number Package Description DM7420N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Inputs Output ABCDY XXXLH XXLXH XLXXH LXXXH HHHHL

www.fairchildsemi.com 2 DM7420 Absolute Maximum Ratings(Note 1) Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Recommended Operating Conditions

Electrical Characteristics

over recommended operating free air temperature range (unless otherwise noted) Note 2: All typicals are at VCC = 5V, TA = 25°C. Note 3: Not more than one output should be shorted at a time. Switching Characteristics at VCC = 5V and TA = 25°C Supply Voltage 7V Input Voltage 5.5V Operating Free Air Temperature Range 0 °C to +70°C Storage Temperature Range −65°C to +150°C Symbol Parameter Min Nom Max Units V CC Supply Voltage 4.75 5 5.25 V VIH HIGH Level Input Voltage 2 V VIL LOW Level Input Voltage 0.8 V IOH HIGH Level Output Current −0.4 mA IOL LOW Level Output Current 16 mA TA Free Air Operating Temperature 0 70 °C Symbol Parameter Conditions Min Typ Max Units (Note 2) VI Input Clamp Voltage V CC = Min, II = −12 mA −1.5 V VOH HIGH Level V CC = Min, IOH = Max 2.4 3.4 V Output Voltage V IL = Max VOL LOW Level V CC = Min, IOL = Max 0.2 0.4 V Output Voltage V IH = Min II Input Current @ Max V CC = Max, VI = 5.5V 1 mA Input Voltage IIH HIGH Level Input Current V CC = Max, VI = 2.4V 40 µA IIL LOW Level Input Current V CC = Max, VI = 0.4V −1.6 mA IOS Short Circuit Output Current V CC = Max (Note 3) −18 −55 mA ICCH Supply Current with Outputs HIGH V CC = Max 2 4 mA ICCL Supply Current with Outputs LOW V CC = Max 6 11 mA Symbol Parameter Conditions Min Max Units tPLH Propagation Delay Time C L = 15 pF 22 ns LOW-to-HIGH Level Output R L = 400Ω tPHL Propagation Delay Time 15 ns HIGH-to-LOW Level Output

3 www.fairchildsemi.com DM7420 Dual 4-Input NAND Gate Physical Dimensions inches (millimeters) unless otherwise noted 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Package Number N14A 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. 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: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be rea- sonably expected to result in a significant injury to the user. 2. A critical component in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com