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ICM7228CIPI Datasheet(PDF) 10 Page - Intersil Corporation |
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ICM7228CIPI Datasheet(HTML) 10 Page - Intersil Corporation |
10 / 19 page 10 ICM7228 8WRITE Input Data Input Will Be Written to Control Register or Display RAM on Rising Edge of WRITE. 9 MODE Input Selects Data to Be Loaded to Control Register or Display RAM: High, Loads Control Register; Low, Loads Display RAM. 10 ID4, (SHUTDOWN) Input When “MODE” Low: Display Data Input, Bit 5. When “MODE” High: Control Bit, Low Power Mode Select: High, Normal Operation; Low, Oscillator and Display Disabled. 11 ID1 Input When “MODE” Low: Display Data Input, Bit 2. When “MODE” High and “ID7 (DATA COMING)” Low: Digit Address, Bit 2, Single Digit Update Mode. 12 ID0 Input When “MODE” Low: Display Data Input, Bit 1. When “MODE” High and “ID7 (DATA COMING)” Low: Digit Address, LSB, Single Digit Update Mode. 13 ID2 Input When “MODE” Low: Display Data Input, Bit 3. When “MODE” High and “ID7 (DATA COMING)” Low: Digit Address, MSB, Single Digit Update Mode. 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. 7ID7, (INPUT DP) Input Display Decimal Point Data Input, Negative True. 8WRITE Input Data Input Will Be Written to Display RAM on Rising Edge of WRITE. TABLE 2. ICM7228B PIN ASSIGNMENTS AND DESCRIPTIONS (Continued) PIN NO. NAME FUNCTION DESCRIPTION |
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