S1C17705/703
Low Power 16-bit Single Chip Microcontroller
● Low power MCU : lower operating voltage 1.8V, 1.2µA/SLEEP, 2.7µA/HALT *
● Large capacity flash memory: 512K bytes*
● LCD driver: 128 SEG x 32 COM (max.)*, pseudo 64 SEG x 64 COM* display
support by 64 COM emulation mode
● Analog I/F: A/D converter, R/F converter(for temperature and humidity
instruments), Supply Voltage Detector
● RISC CPU core S1C17: the compact code optimized for C-language, and high
throughput of an instruction/clock, supports serial ICE
* For S1C17705
■ DESCRIPTIONS
The S1C17705/703 is a 16-bit MCU featuring high-speed low-power operations, compact dimensions, wide address space,
and on-chip ICE. Based on an S1C17 CPU core, this product consists of Flash memory, RAM, serial interface modules
supporting sensors such as UART to support high-bit rate and IrDA1.0, SPI, and I2C, various timers, maximum 35 general
input/output ports, maximum 128 segment × 32 common LCD driver and a power supply voltage booster circuit, A/D
converter, R/F converter, supply voltage detector, and 32 kHz and maximum 8.2 MHz oscillator circuits.
It allows 8.2 MHz high-speed operation at a minimum of 1.8 V operating voltage, and executes a basic instruction in one
clock cycle with 16-bit RISC processing. The S1C17705/703 also includes a coprocessor supporting multiplication, division,
and MAC (multiply and accumulation) operations.
The on-chip ICE function allows onboard Flash programming/erasing, program debugging, and evaluations using the
ICDmini (S5U1C17001H) that can be connected with three signal wires.
The S1C17705/703 is ideal for applications, such as remote controllers, health care products, and sports watches, that must
be driven with battery power and require sensor interfaces and a high-definition LCD display.
FEATURES
The main features of the S1C17705/703 are listed below.
Model
CPU
CPU core
Multiplier/Divider (COPRO)
Internal Flash memory
Capacity
Erase/program count
Other
Internal RAM
Capacity
Internal Display RAM
Capacity
Clock generator
System clock source
IOSC oscillator circuit
OSC3 oscillator circuit
OSC1 oscillator circuit
Other
I/O ports
Number of general-purpose I/O
ports
Serial interfaces
SPI
I2C master (I2CM)
I2C slave (I2CS)
S1C17705
S1C17703
Seiko Epson original 16-bit RISC CPU core S1C17
• 16-bit × 16-bit multiplier
• 16-bit × 16-bit + 32-bit multiply and accumulation unit
• 16-bit ÷ 16-bit divider
512K bytes
256K bytes
(for both instructions and data)
(for both instructions and data)
1,000 cycles (min.)
• Read/program protection function
• Allows on-board programming using a debugging tool such as ICDmini
(S5U1C17001H) and self-programming by software control.
12K bytes
768 bytes
3 sources (IOSC/OSC3/OSC1)
2.7 MHz(typ.) internal oscillator circuit (oscillation start time 5 μs min.)
8.2 MHz (max.) crystal or ceramic oscillator circuit
Supports an external clock input.
32.768 kHz (typ.) crystal oscillator circuit
• Core clock frequency control
• Peripheral module clock supply control
• IOSC control for quick-restart processing from SLEEP mode
Max. 35 bits
Max. 34 bits
(Pins are shared with the peripheral I/O.)
3 channels
1 channel
1 channel
S1C17705/703
UART
IR remote controller (REMC)
LCD driver
LCD outputs
Other
Timers
16-bit timer (T16)
16-bit PWM timer (T16A)
16-bit PWM timer (T16A2)
Clock timer (CT)
Stopwatch timer (SWT)
Watchdog timer (WDT)
A/D converter
Conversion method
Number of analog input channels
Resolution
R/F converter
Conversion method
Number of conversion channels
Sensor supported
Other
Supply voltage detector (SVD)
Detection levels
Interrupts
Reset interrupt
NMI
Programmable interrupts
Power supply voltage
Operating voltage (VDD)
Analog voltage (AVDD)
Operating temperature
Operating temperature range
Current consumption (Typ. value)
SLEEP state
(OSC1 = Off, IOSC = Off,
OSC3 = Off)
HALT state
(OSC1 = 32kHz, IOSC = Off,
OSC3 = Off, LCD = Off)
HALT state
(OSC1 = 32kHz, IOSC = Off,
OSC3 = Off, LCD = On)
Run state
(OSC1 = 32kHz, IOSC = Off,
OSC3 = Off, LCD = Off)
Run state
(OSC1 = Off, IOSC = Off,
OSC3 = 1 MHz ceramic,
LCD = Off)
A/D converting current
Shipping form
1
2
3
Size/pitch
2
2 channels (IrDA1.0 supported)
1 channel
• 120 SEG × 32 COM
• 128 SEG × 32 COM
• Supports 60 SEG × 64 COM
• Supports 64 SEG × 64 COM
emulation RAM mapping.
emulation RAM mapping.
1/5 bias (built-in power supply voltage booster circuit)
5 channels
4 channels
4 channels
1 channel
1 channel
1 channel
Successive approximation type
8 channels (max.)
10 bits
CR oscillation type with 24-bit counter
2 channels (2 sensors can be connected to each channel.)
DC-bias resistive/capacitive sensors and AC-bias resistive sensors
Supports external input for counting pulses.
15 programmable detection levels (1.8 V to 3.2 V)
#RESET pin
Watchdog timer
26 systems (8 levels)
• 1.8 V to 3.6 V (for normal operation)
• 2.5 V to 3.6 V (for Flash erasing/programming)
• Built-in voltage regulator (two operating voltages switchable)
AVDD = VDD
-25°C to 70°C
1.2μA
1.0μA
2.7μA
2.5μA
9.7μA
9.5μA
18μA
15μA
557μA
450μA
200 μA (AVDD = 3.6 V, 100 kHz sampling)
QFP23-240pin
Chip
VFBGA10H-240
QFP23-240pin
QFP21-216pin
VFBGA7H-240
Chip (S1C17705)
Chip (S1C17703)
QFP21-216pin
Chip
(body size: 32 mm × 32 mm, lead pitch: 0.5 mm)
(body size: 24 mm × 24 mm, lead pitch: 0.4 mm)
(body size: 10 mm × 10 mm, ball pitch: 0.5 mm)
(pad pitch: 90 μm)
(pad pitch: 80 μm)
Seiko Epson Corporation
S1C17705/703
BLOCK DIAGRAM
DCLK, DST2,
DSIO
CPU Core S1C17
32 bits
1 cycle
TEST1-3
Flash memory
512K/256K bytes(*1)
Display RAM
(768 bytes)
#TEST(*1)
#RESET
8/16 bits
1 cycle
16 bits
1-5 cycles
Power generator
8 bits
2-5 cycles
A/D converter
AVDD
AIN0-AIN7, #ADTRG
R/F converter
RFIN0-1, REF0-1,
SENA0-1, SENB0-1,
RFCLKO
Interrupt system
Internal RAM
12K bytes(*1)
Test circuit
Reset circuit
SVD circuit
LCD driver
I/O 1 (0x4000-)
Clock generator
(with oscillators)
Interrupt controller
Clock timer
16-bit timer (5ch.)
Stopwatch timer
UART (2ch.)
Watchdog timer
SDI0-2, SDO0-2,
SPICLK0-2,
#SPISS0-2
SPI (3ch.)
SDA0, SCL0
SDA1, SCL1,
#BFR
SEG0-127, COM0-31
LFRO
MISC register
8/16 bits
1 cycle
SIN0-1, SOUT0-1,
SCLK0-1
VDD, VSS, VD1, VD2 ,
VC1-VC5 , CA-CG
OSC1-2, OSC3-4, EXOSC3
FOUTA, FOUTB
(4ch.)(T16A/T16A2)(*2)
EXCL0-3, CAP0-7,
TOUT0-7
I2C master
IR remote controller
REMI, REMO
I2C slave
I/O port/
port MUX
16-bit PWM timer
P00-07, P10-17,
P20-27, P30-37,
P40-42(*1)
*1: The models have a different memory size, LCD outputs and I/O/test port configurations.
*2: 16-bit PWM timer (T16A) is available in the S1C17705 and 16-bit PWM timer (T16A2) is available in the S1C17703.
Memory/function
Flash memory
SEG/COM output pins
(1/16, 1/24, 1/32 duty)
I/O port pins
#TEST pin
16-bit PWM timer (T16A)
16-bit PWM timer (T16A2)
S1C17705
512K bytes
SEG0–SEG127
COM0–COM31
35 (P00–P42)
Available
Available
Unavailable
Seiko Epson Corporation
S1C17703
256K bytes
SEG0–SEG119
COM0–COM31
34 (P00–P41)
Unavailable
Unavailable
Available
3
S1C17705/703
NOTICE:
No part of this material may be reproduced or duplicated in any form or by any means without the written permission of Seiko Epson.
Seiko Epson reserves the right to make changes to this material without notice. Seiko Epson does not assume any liability of any kind
arising out of any inaccuracies contained in this material or due to its application or use in any product or circuit and, further, there is no
representation that this material is applicable to products requiring high level reliability, such as, medical products. Moreover, no license
to any intellectual property rights is granted by implication or otherwise, and there is no representation or warranty that anything made in
accordance with this material will be free from any patent or copyright infringement of a third party. This material or portions thereof may
contain technology or the subject relating to strategic products under the control of the Foreign Exchange and Foreign Trade Law of Japan
and may require an export license from the Ministry of Economy, Trade and Industry or other approval from another government agency.
All brands or product names mentioned herein are trademarks and/or registered trademarks of their respective companies.
©Seiko Epson Corporation 2012, All rights reserved
EPSON semiconductor website
MICRODEVICES OPERATIONS DIVISION
http://www.epson.jp/device/semicon_e/
IC Sales & Marketing Department
421-8 Hino, Hino-shi, Tokyo 191-8501, JAPAN
Phone: +81-42-587-5814 FAX: +81-42-587-5117
4
Document code: 411677603
First issue April, 2012 in Japan
