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Ideal for Monitoring Temperature and Humidity
Singapore May 20 2008: Seiko Epson Corporation ("Epson") today announced the development of the S1C6F632, a low-power-consumption 4-bit flash microcontroller that contains the industry's highest resolution*1 dot matrix LCD driver. Shipment of samples will begin in June 2008, and volume production of 500,000 units per month is scheduled to start in August.
Targeted at growing demand for high-resolution displays required by products such as sports watches, especially in the Japanese and Chinese markets, the 4-bit microcontroller is a microcomputer with an on-chip LCD driver featuring industry-leading*1 resolution of 48 SEG x 32 COM (1,536 dots). Connecting LCD panels directly to the microcontroller makes display of Chinese characters, graphs and more a simple matter. Thanks to Epson's special low-power analog IP and low leak current process technology, standby power consumption is just 0.7 µA, making a big contribution to longer battery life.
The on-chip 31,744 word high-capacity flash memory also leads the industry for 4-bit microcontrollers*1. Powerful peripheral circuits include a resistance-to-frequency A/D type converter (R/F converter) capable of easily monitoring temperature and humidity. The microcontroller's single port supply voltage internally generates multiple voltages required to drive LCD panels, doing away with the need for a dedicated external power supply. Since a dedicated display chip is also unnecessary, the S1C6F632 enables devices for applications with LCDs to be constructed with the minimum number of components.
These capabilities make the S1C6F632 ideal for regular or sports-type watches, clocks and weather stations, or other such products where long battery life, space-saving, temperature/humidity monitoring and enhanced monochrome display are important considerations.
Special features of S1C6F632:
1. On-chip high-resolution dot matrix LCD driver
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On-chip grayscale LCD driver with resolution of 48 SEG x 32 COM (1,536 dots)
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Dedicated voltage regulator/booster circuits ensure stable, high-quality display regardless of the charge left in the batter
2. Low power consumption
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Sleep state: 0.7 µA (typical)
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Halt state (32.768 kHz, LCD off): 2.0 µA (typical)
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Halt state (32.768 kHz, LCD on): 5.5 µA (typical)*2
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Run state (32.768 kHz): 8.3 µA (typical)
3. Peripheral circuits ideally suited to portable devices
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31,744 word high-capacity flash ROM
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2-channel resistance-to-frequency A/D type converter (R/F converter) for monitoring temperature and humidity
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Supply voltage detector
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Comprehensive array of timer functions
Specifications
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Product name
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S1C6F632
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Core CPU
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Epson original 4-bit CPU core S1C63
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Main (OSC1) oscillator circuit
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Crystal oscillator circuit 32.768 kHz (typical)
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Sub (OSC3) oscillator circuit
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Ceramic oscillator 4 MHz (typical) or 1.8 MHz (typical) CR oscillator circuit
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Instruction set
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47 basic instructions (411 instructions in total)
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On-chip ROM
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31,744 word x 13 bit flash
1,000 erase/program cycles
Read/program protection
(Flash Writer programming function)
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On-chip RAM
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8,192 word x 4 bit
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I/O ports
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Max. 24-bit general purpose I/O ports (terminals are shared with peripheral I/O ports)
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Serial interface
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Clock synchronous, 8-bit, 1 channel (SPI connection possible)
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Timers
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Clock timer
16-bit timer, 4 channels (16-bit timer can be used as 8-bit timer x 2 channels)
Stopwatch timer
Watchdog timer
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LCD driver
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48 SEG x 32 COM, 56 SEG x 24 COM or 64 SEG x 16 COM
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Sound generator
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Envelope and 1-shot output functions
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R/F converter
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CR oscillation, 20-bit counter, 2 channels
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Integer multiplier/divider
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8-bit computing unit, 1 channel
Multiplication: 8-bit x 8-bit -> (product) 16 bit
Division: 16 bit / 8 bit -> (residual) 8 bit , (quotient) 8 bit
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Supply voltage detector (SVD)
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15 programmable levels
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Interrupts
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Input port interrupt: 2 levels
Clock timer interrupt: 8 levels
Stopwatch timer interrupt: 4 levels
Programmable timer interrupt: 16 levels
Serial interface interrupt: 1 level
R/F converter interrupt: 3 levels
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Power supply voltage
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1.8 V to 3.6 V (for normal operation)
2.7 V to 3.6 V (for flash ROM erasing/programming)
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Operating temperature range
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-20°C to 70°C
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Current consumption
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Sleep state: 0.7 µA (typical)
Halt state (32.768 kHz, LCD off): 2.0 µA (typical)
Halt state (32.768 kHz, LCD on): 5.5 µA (typical)*2
Run state (32.768 kHz): 8.3 µA (typical)
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Shipping form
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QFP20-144 pin plastic package
VFBGA10H-144
Bare chip
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Notes
*1 As of April 30, 2008, according to research conducted by Epson
*2 Zero panel load, halt state
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