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ICM7217AIPI Datasheet(PDF) 2 Page - Intersil Corporation |
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ICM7217AIPI Datasheet(HTML) 2 Page - Intersil Corporation |
2 / 19 page 9-13 Pinouts Functional Block Diagram ICM7217 (PDIP) COMMON ANODE TOP VIEW ICM7217 (CERDIP) COMMON CATHODE TOP VIEW CARRY/BORROW ZERO EQUAL BCD I/O 8s BCD I/O 4s BCD I/O 2s BCD I/O 1s COUNT INPUT STORE UP/DOWN LOAD REGISTER/OFF LOAD COUNTER/I/O OFF SCAN RESET D1 D3 D4 VDD DISPLAY CONT. SEG b SEG e SEG f SEG d SEG a SEG c D2 SEG g VSS 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ICM7217 ICM7217B CARRY/BORROW ZERO EQUAL BCD I/O 8s BCD I/O 4s BCD I/O 2s BCD I/O 1s COUNT INPUT STORE UP/DOWN LOAD REGISTER/OFF LOAD COUNTER/I/O OFF SCAN RESET SEG d SEG f SEG c VDD SEG a SEG g VSS D1 D2 D3 D4 SEG b SEG e DISPLAY CONT. 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ICM7217A ICM7217C T.G. D4 10 RS ZERO U/D CL CARRY T.G. LATCH MUX 4 4 4 4 T.G. D2 10 RS ZERO U/D CL CARRY T.G. LATCH MUX 4 4 4 4 T.G. D3 10 RS ZERO U/D CL CARRY T.G. LATCH MUX 4 4 4 4 T.G. D1 10 RS ZERO U/D CL CARRY T.G. LATCH MUX 4 4 4 4 1 2 3 4 T.G. 4 4 D1 COMP. 4 REG. 1 2 3 4 12 3 4 12 3 4 4 4 T.G. 4 4 D2 COMP. 4 REG. 4 T.G. 4 4 D3 COMP. 4 REG. 4 T.G. 4 4 D4 COMP. 4 REG. 4 BDC I/O 8 s 4 s 2 s 1 s ZERO UP/DN COUNT VDD VSS SEGMENT DECODER SEGMENT DRIVERS (7) DIGIT DRIVERS (4) A D4 D3 D2 D1 DISPLAY BLANK + OFF G B C D E F MUX. OSCILLATOR MUX. I/O AND DISPLAY CONTROL LOGIC 4 4 DIGIT MUX SCAN DISPLAY LOAD LOAD RESET STORE EQUAL CARRY/BARROW CONTROL REGISTER COUNTER L.R. L.C. RESET BCD I/O INPUTS COM. ANODE: PULL DOWN COM. CATHODE: PULL UP VDD VDD VDD VSS VDD VSS VDD VSS ICM7217 |
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