21 July 2004
EPSON Launches Ultra-Low Power Microcomputer for Timepieces and Temperature/Humidity Dataloggers with Stepping Motor Driver
Singapore, 21 July 2004: EPSON has developed an ultra-low-power 4-bit microcomputer that consumes an average of less than 1 uA of current during use.
Dubbed the "S1C63656" and slated for full-scale volume production, the new microcomputer is ideally suited to applications in small, battery-powered mobile devices equipped with liquid crystal displays - radio- controlled timepieces, as well as thermometers, remote controllers, and wireless temperature/humidity control tags.
The S1C63656 is a low-power 4-bit microcomputer equipped with sufficient ROM & RAM, a LCD driver, a two channel stepping motor driver, and other functions needed for today's new radio controlled analog timepieces. Since radio-controlled timepieces automatically maintain the correct time by capturing radio waves carrying standard time information, their application in such products as security equipment, home devices, and electronic transactions is being studied.
Moreover, the S1C63656 has a proven, built-in "resistance/frequency converting" A/D converter. In combination with an external resistor and thermistor or humidity sensor, this A/D converter enables temperature and humidity measurements at a mere 1/100 to 1/1000 of the power consumed by a typical A/D converter.
Product Features:
1. Ultra-low power consumption (when 3.0V)
- 0.5 µA (32 kHz) in HALT
- 2.5µA (32 kHz) when operating
- 800µA (4 MHz ceramic oscillator) when operating
2. Peripheral circuits perfectly suited for small devices
- Resistance-frequency converting A/D converter: 2-channel, for temperature/humidity readings
- Built-in supply voltage detector (SVD)
- Built-in LCD driver (38 segments x 4/3 commons)
3. Enhanced and easy-to-use timer circuits built in
- 8-bit timer for timepieces
- 1/1000-second stopwatch timer
- 16-/8-bit programmable timer capable of PWM output
- 2ch stepping motor driver
Specifications:
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Core CPU : |
4-bit core CPU S1C63 |
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OSC1 oscillation circuit : |
Crystal oscillation circuit: 32 kHz |
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OSC3 oscillation circuit : |
CR or ceramic oscillation circuit: 1.1 MHz or 4 MHz |
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Instruction set : |
411 types, with 8 addressing modes |
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Minimum instruction execution time : |
0.5 µsec / 4 MHz (2 clocks) |
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Built-in ROM : |
6k words x 13-bit program ROM / 1k x 4-bit data ROM |
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Built-in RAM : |
1024 words x 4-bit work RAM / 48 x 4-bit display memory |
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Ports : |
8-bit input, 4-bit output, 8-bit I/O |
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Serial interface : |
1 channel (synchronous type clock) |
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Timers : |
Programmable 16-bit x 1ch, or programmable 8-bit x 2 channel; PWM output available |
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R/F converter : |
2 channels, CR oscillation, supports temperature/humidity sensor |
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LCD driver : |
38 segments x 4/3 commons |
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Stepping Motor Driver : |
2ch with adjustable pulse width |
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Sound generator : |
Built-in, with envelope and one-shot output functions |
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Watchdog timer : |
Built-in |
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Supply voltage detector circuit : |
Built-in |
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Supply voltage : |
1.8 – 3.6 V (32k); 2.4 – 3.6 V (4M) |
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Package : |
QFP20-144 (22 x 22 x 1.7 mm body) |
Pictorial: EPSON S1C63656
About EPSON
The Epson Group increases its corporate value through its innovative and creative culture. Dedicated to providing its customers with digital image innovation, its main product lines comprise information-related equipment such as printers and projectors, electronic devices including displays, semiconductors and quartz devices, and precision products such as watches. Epson products are known throughout the world for their superior quality, functionality, compactness and energy efficiency.
The Epson Group is a network of 88,036 employees in 111 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., which is listed on the First Section of the Tokyo Stock Exchange, the Group had consolidated sales of 1,322 billion yen in fiscal 2002.
About the EPSON Group
Epson Singapore Pte Ltd is a wholly owned subsidiary of Seiko Epson Corporation, Japan. As the Regional Headquarters of Seiko Epson Corporation, Epson Singapore Pte Ltd handles sales and marketing
of information-related equipment such as printers, scanners and projectors, electronic devices including semiconductors, LCDs and crystal devices, and system devices in Singapore, Malaysia, Thailand, Indonesia, Philippines,
India, Australia and New Zealand.
More information about EPSON SINGAPORE PTE LTD is available at http://www.epson.com.sg/html/electronic_devices.html
Further Information:
EPSON SINGAPORE PTE LTD
Electronics Devices Sales Division
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