SPL09A Datasheet, PDF (1/7 Pages) List of Unclassifed Manufacturers – 5KB LCD CONTROLLER/DRIVER

Preliminary
SPL09A
5KB LCD CONTROLLER/DRIVER
GENERAL DESCRIPTION
The SPL09A is a CMOS 8-bit single chip microprocessor, which contains RAM, ROM, I/Os, interrupt/wakeup
controller, timer and automatic display controller/driver for LCD. This chip is designed not only low power
consumption but also provides standby mode controlled by software for power saving. It is very suitable for LCD
hand-held products.
FEATURES
Built-in 8-bit CPU
96 bytes SRAM
5K bytes ROM
Max. CPU frequency: 2.0MHz @ 3V
CPU clock frequency is programmable,
1/2,1/4,1/8,or 1/16 of RC oscillator frequency
Wide operating voltage : 2.4V - 3.4V
3.6V - 5.5V
Provide 6 INT sources
Built-in 32.768KHz crystal oscillator
Crystal oscillator switches from strong to weak
mode automatically
Internal time base generator
Built-in RC oscillator
Only one resistor is needed
ÁOne 16 bits timer / counter
LCD controller
Max. 26 segments x 5 commons
1/2, 1/3 bias ; 1/2, 1/3, 1/4,1/5 duty
Provides useful display operation mode
Low Voltage Reset
Provides 2.2V low Voltage reset
Low power consumption
Operating current: 300 A/1.0MHz @ 3V
Provides standby function (stop all oscillators)
Very low current in Halt mode
In Halt mode: I_HALT < 1 A @ 3V
10 general purpose I/Os
6 IO pins support Key wake-up mode
2 IO pins are shared with LCD segments
1 IO pin is shared with LCD common
BLOCK DIAGRAM
32.768KHz
ROSC
Interrupt/wakeup
Control
5K bytes
ROM
96 bytes
RAM
32.768KHz
Oscillator
&
Time base
One 16-bit
Auto reload
Timer
8-bit
RISC
Processor
LCD RAM
26 SEGMENTS X 5 COMMONS LCD DRIVER
IOCD3 - 0
(I/O)
IOEF5 - 0
(I/O)
COM4 - 0
SEG25 - 0
Sunplus Technology Co., Ltd.
1
Rev.: 0.1 1999.11.24