DM9374 Datasheet | Fairchild Semiconductor

Description The DM74 is a 7-segment decoder driver incorporating input latches and output circuits to directly drive mon anode LED displays. Ordering Code: Order Number DM9374N Package Number N16E Package Description 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Connection Diagram Logic Symbol VCC = Pin 16 GND = Pin 8 Pin Descriptions Pin Names A0- A3 LE RBI RBO a - g Description Address (Data Inputs) Latch Enable Input (Active LOW) Ripple Blanking Input (Active LOW) Ripple Blanking as Output (Active LOW) as Input (Active LOW) Constant Current Outputs (Active LOW) © 2000 Fairchild Semiconductor Corporation DS010210 .fairchildsemi. http://.. Truth Table Binary State - 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 X LE H L L L L L L L L L L L L L L L L L X RBI (Note 1) L H X X X X X X X X X X X X X X X X Inputs A3 X L L L L L L L L L H H H H H H H H X A2 X L L L L L H H H H L L L L H H H H X A1 X L L L H H L L H H L L H H L L H H X A0 X L L H L H L H L H L H L H L H L H X H L H L L H L L L L L H L H H L H H H L L L L L H H L L L H H L H L H H H L L H L L L L L L L H H L H H H H a b c d STABLE H L H L L H L L H L L H L H L H H H H L H L H H H L H L H H L L L L H H H L H H H L L L H L L H L L L L H H H H H L L L L L H L L L L L H L H H Outputs Display e f g RBO H L H H H H H H H H H H H H H H H H L (Note 2) Stable Blank 0 1 2 3 4 5 6 7 8 9 - E H L P BLANK BLANK H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Note 1: The RBI will blank the display only if a binary zero is stored in the latches. Note 2: RBO used as an input overrides all other input conditions. Numerical Designations .fairchildsemi. 2 h t t p : / / w w w Functional Description The DM9374 is a 7-segment decoder/driver with latches on the address inputs and active LOW constant current outputs to drive LEDs directly. This device accepts a 4-bit binary code and produces output drive to the appropriate segments of the 7-segment display. It...