DM7442A FAIRCHILD | Alldatasheet

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Technical content

Features

■ Diode clamped inputs ■ Also for application as 4-line-to-16-line decoders; 3-line-to-8-line decoders ■ All outputs are high for invalid input conditions ■ Typical power dissipation 140 mW ■ Typical propagation delay 17 ns Ordering Code: Connection Diagram Order Number Package Number Package Description DM7442AN N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

www.fairchildsemi.com 2 DM7442A Function Table H = HIGH Level L = LOW Level Logic Diagram No. BCD Input Decimal Output D C B A0123456789

0 L L L L LHHHHHHHHH

1 L L LHHLHHHHHHHH

2 L LHLHHLHHHHHHH

3 L LHHHHHLHHHHHH

4 LHL LHHHHLHHHHH

5 LHLHHHHHHLHHHH

6 LHHLHHHHHHLHHH

7 LHHHHHHHHHHLHH

D

3 www.fairchildsemi.com DM7442A 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. Note 4: ICC is measured with all outputs open and all inputs grounded. 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 −0.8 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, VIH = Min VOL LOW Level V CC = Min, IOL = Max 0.2 0.4 V Output Voltage V IH = Min, VIL = Max II Input Current @ Max Input Voltage V CC = Max, VI = 5.5V 1 mA 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 ICC Supply Current V CC = Max (Note 4) 28 56 mA Symbol Parameter Conditions Min Max Units tPHL Propagation Delay Time C L = 15 pF HIGH-to-LOW Level Output R L = 400Ω 25 ns from A, B, C or D through

2 Levels of Logic

tPHL Propagation Delay Time HIGH-to-LOW Level Output 30 ns from A, B, C or D through

3 Levels of Logic

tPLH Propagation Delay Time LOW-to-HIGH Level Output 25 ns from A, B, C or D through tPLH Propagation Delay Time LOW-to-HIGH Level Output 30 ns from A, B, C or D through

www.fairchildsemi.com 4 DM7442A BCD to Decimal Decoder Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Package Number N16E 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