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PDF SPL10A1 Data sheet ( Hoja de datos )
| Número de pieza | SPL10A1 | |
| Descripción | 7.5KB LCD CONTROLLER/DRIVER | |
| Fabricantes | SunPlus | |
| Logotipo |  |
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SPL10A1
7.5KB LCD CONTROLLER/DRIVER
GENERAL DESCRIPTION
The SPL10A1 is a CMOS 8-bit single chip micro-controller which contains LCD drivers,
ROM, SRAM, I/O, timer/counter and audio output on a single chip.
The SPL10A1 is designed to drive LCD directly and perform efficient controller function
as well as arithmetic function. With the on chip crystal oscillator, the clock function is
easily realized. For power saving, a software controllable standby switch is also built-in.
The SPL10A1 is widely used in electronic products requiring very low power operation, for
example, multi-function watch, calendar, calculator, thermometer or LCD game with audio
output.
FEATURES
îCPU: 8-bit SUNPLUS RISC CPU
îOperating voltage: 2.4V to 5.5V
îMaximum CPU clock: 2 MHz @ 3V
îROM capacity: 7.5 K x 8 bits
îRAM capacity: 96 x 8 bits
îDirect Driver for LCD : 4 Commons X 32 Segments
(1/2, 1/3 bias, 1/2, 1/3, 1/4 duty)
îInput Port : 6 input pins with key wakeup function
with 4 different configurations (mask option)
îI/O Port : 2 general I/O pins and 4 special I/O pins
that can implement thermometer and..
îTimer/Counter: one 12-bit timer/counter
î6 Interrupt sources : External Interrupt
Timer Interrupt
2 KHz Interrupt
LCD Service Interrupt (in LCD share mode)
128 Hz Interrupt
2 Hz Interrupt
îDual Clock System : One built-in RC oscillator (only one resistor is needed)
for CPU and one built-in crystal oscillator or RC
oscillator ( mask option ) for LCD scanning.
îAudio or Tone Output : One 7-bit DA single tone melody or speech that can
drive transistor or Tone output that can drive buzzer.
îLow Operating Current : Typical current < 3 µA @ 3V for timepiece product
© Sunplus Technology Co., Ltd.
1
Rev. : 1.1 1998.07.19
1 page  
SPL10A1
2. 32768Hz crystal oscillator or R oscillator (mask option) for LCD scanning and interrupt
sources (2 KHz, LCDL for LCD service,128 Hz, 2Hz). It is suggested to enable
32768Hz crystal in strong mode for a few seconds and then switch to weak mode
when reset occurs.
C1
20p
32768Hz
C2
20p
X32I
X32O
+VDD
R
X32I
32768Hz Crystal
R Oscillator
Note: Length of the wiring for X32I and X32O should be as short as possible.
STOP CLOCK MODE
The SPL10A1 supports the power saving mode for those applications needed very low
standby current. The user can simply enable the wake-up sources then stop the CPU
clock by writing the STOP CLOCK register ($09). The CPU will go to stand-by and the
RAM and I/O remains their previous states until wake-up. There are three sources of
wake-up in this chip, PORT IOEF wake-up, TIMER 0 wake-up and 2 Hz wake-up. After
the chip being waken up, the internal CPU will go to the RESET state the RAM and I/O
are not affected by the wake-up reset. The standby current of timepiece product typically
is less than 3 µA@3V by using this mode and 32768Hz clock source in weak mode.
For non-timepiece products, 32768Hz crystal driver or R oscillator (mask option) that
generates the 32768Hz clock source also can be turned off, then the whole chip stops.
The standby current of the SPL10A1 is less than 1µA@3V. In this mode, IOEF port can
be used to wake up this chip.
TIMER/COUNTER
The SPL10A1 contains one 12-bit timer/counter,TM0.In timer mode,TM0 is reloadable
up-counter. When timer overflows from 0FFF to 0000, the carry signal will generate the
INTERRUPT signal if the corresponding bit is enabled in INT ENABLE register ($0D),and
the timer will be auto reloaded to the user‘s setup value and upcount again. If TM0 being
specified as a counter, the user may reset the counter by loading 0 into register $14 and
$1C. After the counter being activated, the count value can also be read from above
registers on-the-fly, the read instruction will not affect the counter's value or reset it.
5
5 Page 
1/3 Bias , 1/2 duty lighting format
At the initial clear ( reset )
COM0 ~ COM3
LCD display ON mode
Normal operation
COM0
COM1
COM2
COM3
LCD driver output:All the
LCD segments display OFF
LCD driver output: COM0
LCD segments display ON
LCD driver output: COM1
LCD segments display ON
LCD driver output:All the
LCD segments display ON
11
SPL10A1
VDD
VSS
VDD
VSS
VDD
VDD2
VDD1
VSS
VDD
VDD2
VDD1
VSS
VDD2
VDD1
VDD2
VDD1
VDD2
VDD1
VDD
VDD2
VDD1
VSS
VDD
VDD2
VDD1
VSS
VDD
VSS
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet SPL10A1.PDF ] | |
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