Datasheet

DEP 128032D-W Production Specification
Version: 0 PAGE: 6
17 RDB
This is a MPU interface input pad.
When connected to an 8080 series MPU, it is active LOW. This pad is
connected to the RD signal
of the 8080 series MPU, and the data bus is in an output status when this
signal is “L”.
When connected to a 6800 series MPU , this is active HIGH. This is used as
an enable clock
input of the 6800 series MPU.
When RD = “H”: Enable.
When RD = “L”: Disable.
18 D0 This is an 8-bit bi-directional data bus that connects to an 8-bit or 16-bit
standard MPU data bus.
When the serial interface is selected, then D0 serves as the serial clock input
pad (SCL) and D1
serves as the serial data input pad (SI). At this time, D2 to D7 are set to high
impedance.
When the I2C interface is selected, then D0 serves as the serial clock input
pad (SCL) and D1
serves as the serial data input pad (SDAI). At this time, D2 to D7 are set to
high impedance.
19 D1
20 D2
21 D3
22 D4
23 D5
24 D6
25 D7
26 IREF
This is a segment current reference pad. A resistor should be connected
between this pad and
VSS. Set the current at 12.5mA.
27 VCOMH
This is a pad for the voltage output high level for common signals.
A capacitor should be connected between this pad and VSS.
28 VPP
OLED panel power supply. Generated by internal charge pump.
Connect to capacitor. It could be supplied externally.
29 VLSS
This is a segment voltage reference pad.
This pad should be connected to VSS externally.
30 NC(GND) No connection