Product Summary

The DM9374 is a 7-segment decoder/driver with latches on the address inputs and active LOW constant current outputs to drive LEDs directly. The DM9374 accepts a 4-bit binary code and produces output drive to the appropriate segments of the 7-segment display. It has a decode format which produces numeric codes “0” through “9” and other codes. Latches on the four data inputs are controlled by an active LOW Latch Enable, LE. When LE is LOW, the state of the outputs is determined by the input data. When LE goes HIGH, the last data present at the inputs is stored in the latches and the outputs remain stable. The LE pulse width necessary to accept and store data is typically 50 ns, which allows data to be strobed into the DM9374 at normal TTL speeds.

Parametrics

DM9374N absolute maximum ratings: (1)Supply Voltage: 7V; (2)Input Voltage: 5.5V; (3)Operating Free Air Temperature Range: 0℃ to +70℃; (4)Storage Temperature Range: -65℃ to +150℃.

Features

DM9374N features: (1)Clamp Voltage, VCC = Min, II = -12 mA, Input: -1.5 V; (2)HIGH Level Output Voltage, VCC = Min, IOH = Max, VIL = Max, VOH: 2.4 to 3.4 V; (3)LOW Level Output Voltage, VCC = Min, IOL = Max, VIH = Min, VOL: 0.2 to 0.4 V; (4)Input Current @ Max Input Voltage, VCC = Max, VI = 5.5V, II: 1 mA; (5)HIGH Level Input Current, VCC = Max, VI = 2.4V, IIH: 40 mA; (6)LOW Level Input Current, VCC = Max, VI = 0.4V, IIL: -1.6 mA; (7)Short Circuit Output Current, VCC = Max, IOS: -18 to -57 mA; (8)Supply Current, VCC = Max, VIN = 0V, VOUT = 3.0V, ICCH: 50 mA.

Diagrams

DM9374N block diagram

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DM9374N
DM9374N

Fairchild Semiconductor

Encoders, Decoders, Multiplexers & Demultiplexers 7-Seg Dec/Drv/Latch

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