ra8816 RAIO Technology Inc., ra8816 Datasheet - Page 8

• Manufacturer Part Number: ra8816
• Description: 144x65 Character/graphic Lcd Driver
• Manufacturer: RAIO Technology Inc.

Preliminary Version 1.6
RAiO TECHNOLOGY INC.
4-2 Clock and Power
C1P, C1M
C2P, C2M
Pin Name
EXT_CLK
CLK_SEL
V0~V4
GNDP
VDDP
VLCD
VREF
BIT4
P/ S
C86
GND
INT
VDD
C3P
CS
VR
I/O
O
O
O
I
I
I
I
P
P
I
I
I
I
I
I
I
Capacitor Input
These are used to connect a capacitor for internal Booster.
Capacitor Input
These are used to connect a capacitor for internal Booster.
Capacitor Input
These are used to connect a capacitor for internal Booster.
Clock Select
This pin is used to select the clock source. When CLK_SEL is “1”, the
clock is generated by internal RC oscillator. When CLK_SEL is “0”, the
system clock is drived by external pin - EXT_CLK.
External Clock
When CLK_SEL is “0”, this pin is the external clock input. When
CLK_SEL is “1”, this pin do not used and has to connect VDD or GND.
VDD Power
Ground
means Register Cycle and “1” means Data Access Cycle.
This pin must keep NC for serial mode.
Chip Select
This is a chip enable for RA8816.
This pin must keep NC for serial mode.
Interrupt Signal
This is an interrupt output for MPU. Active low 。
MPU Select
C86 = 0
C86 = 1
This pin must keep NC for serial mode.
Data Bit Select
BIT4 = 0
BIT4 = 1
This pin must keep NC for serial mode.
Parallel/Serial Select
P/ S = 0
DB[7..6].
P/ S = 1
Voltage Source of LCD Driver
The relationship of the power is VLCD>V0 ≧ V1 ≧ V2 ≧ V3 ≧ V4 ≧ VSS 。
Booster Output
Reference Voltage Input
This is the refeence voltage input when use an external regulator.
Voltage Adjustment
Applies voltage between V0 and VSS. Using a resistive divider.
The MPU interface is 8080 series.
The MPU interface is 6800 series(Default).
The parallel mode is use 8-bit data bus.
The parallel mode is use 4-bit data bus(Default).
The MPU interface is serial mode(Default). See the setting of
The MPU interface is parallel mode.
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Table 4-3
Description
144x65 Character/Graphic LCD Driver
www.raio.com.tw
RA8816