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