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ICM7228AIJI Datasheet(PDF) 10 Page - Intersil Corporation |
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ICM7228AIJI Datasheet(HTML) 10 Page - Intersil Corporation |
10 / 17 page 9-26 14 ID3 Input When “MODE” Low: Display Data Input, Bit 4. When “MODE” High: RAM Bank Select (Decode Modes Only): High, RAM Bank A; Low, RAM Bank B. 15 DP Output LED Display Decimal Point and Segments a, b, and d Drive Lines 16 SEG a 17 SEG b 18 SEG d 19 VDD Supply Device Positive Power Supply Rail. 20 SEG c Output LED Display Segments c, e, f and g Drive Lines. 21 SEG e 22 SEG f 23 SEG g 24 DIGIT 8 Output LED Display Digits 8, 2, 5 and 7 Drive Lines. 25 DIGIT 2 26 DIGIT 5 27 DIGIT 7 28 VSS Supply Device Ground or Negative Power Supply Rail. TABLE 3. ICM7228C PIN ASSIGNMENTS AND DESCRIPTIONS PIN NO. NAME FUNCTION DESCRIPTION 1 SEG c Output LED Display Segments c, e, band Decimal Point Drive Lines. 2 SEG e 3 SEG b 4DP 5 DA0 Input Digit Address Input, Bit 1 LSB. 6 DA1 Input Digit Address Input, Bit 2. 7 ID7, (INPUT DP) Input Display Decimal Point Data Input, Negative True. 8 WRITE Input Data Input Will Be Written to Display RAM on Rising Edge of WRITE. 9 HEXA/CODE B/SHUTDOWN Input Three Level Input. Display Function Control: High, Hexadecimal Decoding; Float, Code B Decoding; Low, Oscillator, and Display Disabled. 10 DA2 Input Digit Address Input, Bit 3, MSB. 11 ID1 Input Display Data Inputs. 12 ID0 13 ID2 14 ID3 15 DIGIT 1 Output LED Display Digits 1, 2, 5 and 8 Drive Lines. 16 DlGlT 2 17 DIGIT 5 18 DlGlT 8 19 VDD Supply Device Positive Power Supply Rail. TABLE 2. ICM7228B PIN ASSIGNMENTS AND DESCRIPTIONS (Continued) PIN NO. NAME FUNCTION DESCRIPTION ICM7228 |
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