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Microcontroller drives sensors in healthcare equipment.
August 14, 2008 -
Model S1C17602 16-bit microcontroller incorporates 10-bit successive approximation A/D converter with running current consumption of 120 µA typical when sampling clock is 2 MHz. It includes R/F converter with 24-bit counter for monitoring temperature and humidity as well as various serial interfaces. Segment LCD driver for displaying alphanumeric characters and icons supports every type of LCD and unit also includes 4 KB RAM and various timers.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.) |
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Epson Develops S1C17602, a 16-bit Microcontroller with Enhanced Functions Suitable for Controlling Sensors for Healthcare Equipment
- TOKYO, Japan, June 4, 2008 -
Seiko Epson Corporation ("Epson") has developed the S1C17602, a low power consumption 16-bit microcontroller that incorporates a newly developed 10-bit ultra-low power consumption A/D converter and is capable of controlling various sensors used in healthcare equipment. Shipment of samples of this product began in May 2008, with volume production of 500,000 units per month scheduled to start in December 2008.
The S1C17602 has an ultra-low power consumption A/D converter with a running current consumption of 120µA (typical when the sampling clock is 2 MHz), an R/F converter with a 24-bit counter for monitoring temperature and humidity, and various serial interfaces, which enable connection with sensors that are incorporated in healthcare equipment to monitor body temperature, blood pressure, body composition, etc. In addition, this product contains a segment LCD driver for displaying alphanumeric characters and icons. The S1C17602 is the first 16-bit microcontroller produced by Epson with a segment LCD driver. This LCD driver is compatible with not only ordinary 4 common drivers (max. of 160 dots) but also 8 common drivers (max. of 288 dots) enabling display support for increasingly higher resolutions and greatly enhancing expression.
Through the development of the S1C17 family of products, Epson has provided a lineup of 16-bit microcontrollers that contain an LCD controller and a dot matrix LCD driver. The addition of this series of new products containing a segment LCD driver enables the S1C17 family of products to support every type of liquid crystal display. Products equipped with LCDs are becoming much more diversified, however Epson has made it possible for its customers to develop all types of products, from low-end to high-end, by using the S1C17 family.
Special features of the S1C17602
1. Built-in A/D converter with ultra-low power consumption enables control of various sensors
o Contains a 10-bit successive approximation A/D converter that achieves ultra-low power consumption of 120µA (typical), which is one-third the running power consumption of conventional products from Epson (when the sampling clock is 2 MHz)
o Contains an R/F converter that is equipped with a 24-bit counter and capable of easy and highly precise monitoring of temperature and humidity with only passive components
o Contains I2C (master/slave) and SPI (master/slave), which are standard I/F for sensor modules
o Built-in MAC (multiply and accumulate) unit and dividing unit enable high-speed sensor processing, which is becoming more complicated
2. LCD driver supports enhanced segment display to achieve enriched expression
o Compatible with the more enhanced 8 common drivers (max. of 288 dots) in addition to conventional 4 common drivers (max. of 160 dots)
o Microcontroller software enables 16-value contrast adjustment
o Built-in driver-dedicated power circuit enables the device to maintain a high quality display regardless of the charge remaining in the battery
3. Low power consumption dramatically increases battery life
o Achieves both the high processing capability of a 16-bit microcontroller and the low power consumption that is equivalent to a 4 or 8-bit microcontroller
Also achieves ultra-low power consumption of 5.5µA even when the LCD is in operation (32.768 KHz in Run state, no panel load, Halt state)
o Proper adjustment of the CPU clock with the software achieves optimal power consumption; for example, a frequency division value set to 1/8 achieves an operating current that is one-third of the normal current
Run state (32 KHz): 15µA (typical) in normal mode; 5µA (typical) when the gear ratio is set to 1/8
Run state (8 MHz): 3mA (typical) in normal mode; 1.1mA (typical) when the gear ratio is set to 1/8
(Normal mode: 1 cycle = 1 CLK; 1/8 gear ratio: 1 cycle = 8 CLK)
Specifications
Product name S1C17602
Core CPU Epson original 16-bit RISC CPU core S1C17
Multiplier/divider 16-bit x 16-bit + 32-bit MAC unit;
16-bit/16-bit divider
Main (OS3) oscillator circuit Crystal/ceramic oscillator 8.2 MHz (max.)
External clock input
Sub (OSC1) oscillator circuit Crystal oscillator 32.768 KHz (typical)
Built-in oscillator circuit 2.5 MHz (typical)
Instruction set 184 instructions
Built-in ROM 64 KB Flash ROM (for instructions and data)
1,000 erase/program cycles
On-board programming via debugging function
Self programming via software control
Write/read-protection
Built-in RAM 4 KB
A/D converter 10-bit resolution, INL/DNL,± 1.5LSB (max.), 100 ksps (max.), 8 ch.
R/F converter 24-bit counter, DC/AC drive switching function, 2 ch.
I/O Ports Max. 36-bit general-purpose I/O ports (Terminals are shared with peripheral I/O ports)
Serial interfaces SPI (master/slave) 1 ch.
I2C (master/slave) 1 ch. each
UART (IrDA1.0) 2 ch.
Remote controller 1 ch.
Timers 8-bit timer 2 ch.
16-bit timer 3 ch.
PWM timer 1 ch.
Clock timer 1 ch.
Stopwatch timer 1 ch.
Watchdog timer 1 ch.
8-bit OSC1 timer 1 ch.
LCD driver 36 SEG x 8 COM / 40 SEG x 4 COM
Built-in voltage booster circuit (1/3 bias)
Supply voltage detector 16 programmable levels (1.7 V to 3.2 V)
Interrupts NMI
P-port input interrupt 2 levels
Serial interface interrupt 4 levels
Timer interrupt 8 levels
LCD interrupt; SVD interrupt; ADC interrupt; RFC interrupt
Power supply voltage 1.8 V to 3.6 V (for normal operation, with 1.8 V internal voltage for low power operation by regulator)
2.7 V to 3.6 V (for flash ROM erasing/programming with 2.5 V internal voltage)
Current consumption Sleep state: 0.75µA (typical)
Halt state (32.768 KHz): 2.5µA (typical)
Run state (32.768 KHz): 15.0µA (typical)
LCD state (32.768 KHz): 5.5µA (typical)*1
Shipping form PTQFP14-100-pin plastic package
VFBGA7H-144
Bare chip
*1 No panel load, Halt state
About Epson
Epson is a global leader in imaging products including printers, 3LCD projectors and small- and medium-sized LCDs. With an innovative and creative culture, Epson is dedicated to exceeding the vision and expectations of customers worldwide with products known for their superior quality, functionality, compactness and energy efficiency.
Epson is a network of 88,925 employees in 109 companies around the world, and is proud of its ongoing contributions to the global environment and to the communities in which it is located. Led by the Japan-based Seiko Epson Corp., the Group had consolidated sales of 1,347 billion yen in fiscal 2007.
Contact:
Seiko Epson Corp.
Brand Strategy & Communications
URL: http://www.epson.co.jp/e/
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