S6A0074 Datasheet, PDF (8/68 Pages) Samsung semiconductor – 34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD

S6A0074
34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
Pad (No)
RS/CS (50)
RW/SID (51)
E/SCLK (49)
DB0/SOD (53)
DB1- DB3
(54 - 56)
DB4 - DB7
(57- 60)
Input/
Output
Input
Input
Input
Input.-
Output/
Output
Input.
Output
Table 2. Pad Description (Continued)
Name
Description
Register elect/
Chip select
When bus mode, used as register
selection input.
When RS/CS = "High", Data register is
selected.
When RS/CS = "Low", Instruction
register is selected.
When serial mode, used as chip
selection input.
When RS/CS = "Low", selected.
When RS/CS = "High", not selected.
(low access enable)
Read/Write/Serial
input data
When bus mode, used as read/write
selection input.
When RW/SID = "High", read
operation.
When RW/SID = "Low", write
operation.
When serial mode, used for data input
pin.
Read/Write
enable/Serial
clock
When bus mode, used as read/write
enable signal. When serial mode, used
as serial clock input pin.
Data bus 0 bit/
Serial output data
When 8-bit bus mode, used as lowest
bi-directional data bit. During 4-bit bus
mode, Open this pin. When serial
mode, used as serial data output pin. If
not in read operation, open this pin.
Data bus 1 - 7
When 8-bit bus mode, used as low
order bi-directional data bus.
During 4-bit bus mode or serial mode,
open these pins.
When 8-bit bus mode, used as high
order bi-directional data bus. In case of
4-bit bus mode, used as both high and
low order.
DB7 used for busy flag output.
During serial mode, open these pins.
Interface
MPU
MPU
MPU
MPU
MPU
MPU
8