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GG2021HWDNNRNP-V00-LBCX Datasheet(PDF) 7 Page - Jewel Hill Electronic |
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GG2021HWDNNRNP-V00-LBCX Datasheet(HTML) 7 Page - Jewel Hill Electronic |
7 / 29 page JEWEL HILL ELECTRONIC CO.,LTD. 7. MODULE FUNCTION DESCRIPTION 7.1. PIN DESCRIPTION Pin No. Symbol Description 1 /CS1 Chip select signal input, Low active. 2 /RES Reset signal input, Low active 3 A0 Data/command select signal input, H: Data; L: Command 4 WR When use 8080 MPU, this is active Low and Write signal input pin. When use 6800 MPU, H: Read; L: Write. 5 RD When use 8080 MPU, this is active Low and Read signal input pin. When use 6800 MPU, this is active High and Enable Clock input pin. 6 D0 7 D1 8 D2 9 D3 10 D4 11 D5 12 D6 13 D7 8-bit bi-directional Data bus. when “P/S=L”, D0-D5 fixed to “H”. D6 is serial clock input (SCL), D7 is serial data input (SDA). 14 VDD Power supply for Positive (+3V). 15 VSS Power supply for Ground (0V). 16 VOUT DC/DC voltage converter. Connect a capacitor between this pin and VDD or VSS. 17 CAP5+ DC/DC voltage converter. When use 6-times voltage converter, connect a capacitor between this pin and CAP1-. 18 CAP3+ DC/DC voltage converter. Connect a capacitor between this pin and CAP1-. 19 CAP1- DC/DC voltage converter. Connect a capacitor between this pin and CAP1+. 20 CAP1+ DC/DC voltage converter. Connect a capacitor between this pin and CAP1-. GG2021 VER: 2.0 - 6 - Issue date: 2005/11/21 |
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