EM65168 ELAN Microelectronics Corp, EM65168 Datasheet - Page 10

• Manufacturer Part Number: EM65168
• Description: 80 Com/seg Lcd Driver
• Manufacturer: ELAN Microelectronics Corp

EM65168
80 COM/SEG LCD Driver
6
6 •
Pin Name
RAMADS
Pin Description
RAMEN
VSS2+
RAMW
RAMR
VOUT
VSS2-
VREG
VSS4
VSS3
MAIN
GND
VDD
MD
EN
M1
M0
I/O
-
-
-
-
-
-
-
-
I
I
I
I
I
I
I
I
I
Ground
Step-up capacitor
Mode select
Mode select
RAM write signal, low active
System power supply
Voltage converter input/output pin
Connect this pin to GND through capacitor
EN=1, VOUT=VDD-Vt
Step-up capacitor
Step-up capacitor
Step-up capacitor
Output voltage regulator terminal. Provides the voltage
between V1 and GND through a resistive voltage divider.
Master or slave control signal.
MAIN=1, master unit
MAIN=0, slave unit
This pin controls the whole chip’s power. This IC works when
this pin is connected to ground, otherwise the device is
ddisable when connect to VDD.
EN=0 and MAIN=1 the chip will generate VSS2+, VSS2-
VSS3, VSS4, VOUT, LOAD, FR signal and internal RC
clock.
EN=1, standby mode (all COM/SEG output to GND level)
MD=0: 4-bit bus mode, the RAMD3~RAMD0 is valid,
RAMD7~DAMD4 must be connected to VDD or GND level
MD=1: 8-bit bus mode, the RAMD7~RAMD0 is valid
RAM read and write control signal.
0 : can read and write
1 : cannot read and write
RAM bus (RAMD [7:0]) select signal
0 : RAM Address bus
1 : RAM Data bus
RAM read signal, low active
RAMD[7:0]
RAMW
RAMR
Tri-state
1
1
(This specification is subject to change without further notice)
Function
Output
0
1
Product Specification (V1.0) 04.26.2006
Input
0
1
Tri-state
0
0
No of Pins
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1