S1C63657
CMOS 4-bit Single Chip Microcontroller
● High Performance 4-bit Core CPU S1C63000
● LCD Driver (56 SEG × 8 COM)
● R/f Converter to Measure Temperature and Humidity
● Low Current Consumption
● Low Voltage Operation
■ DESCRIPTIONS
The S1C63657 is a microcomputer which has a high-performance 4-bit CPU S1C63000 as the core CPU, ROM (8,192
words × 13 bits), RAM (1,024 words × 4 bits), multiply-divide circuit, watchdog timer, programmable timer, time base
counter, an LCD driver that can drive a maximum 56 segments × 8 commons, sound generator and R/f converter built-in.
The S1C63657 features low current consumption, this makes it suitable for battery driven portable equipment with R/f
converter.
■ FEATURES
● Core CPU....................................................4-bit CMOS core CPU S1C63000
● OSC1 oscillation circuit ............................32.768 kHz (Typ.) crystal oscillation circuit
● OSC3 oscillation circuit ............................4 MHz (Max.) ceramic (2 MHz Max. when OSC3 is used as the R/f converter
operating clock) or 1.1 MHz (Typ.) CR oscillation circuit (∗1)
● Instruction set ...........................................Basic instruction: 46 types (411 instructions with all)
Addressing mode: 8 types
● Instruction execution time........................During operation at 32.768 kHz: 61 μsec
During operation at 4 MHz:
● ROM capacity ............................................Code ROM: 8,192 words × 13 bits
Data ROM: 2,048 words × 4 bits
122 μsec 183 μsec
1.5 μsec
0.5 μsec 1.0 μsec
● RAM capacity ............................................Data memory: 1,024 words × 4 bits
Display memory: 160 words × 4 bits
● Input port....................................................8 bits (Pull-down resistors may be supplemented ∗1)
● Output port.................................................8 bits (It is possible to switch the 2 bits to special output ∗2)
● I/O port.......................................................8 bits
● LCD driver ..................................................56 segments × 4, 5 or 8 commons (∗2)
● Time base counter ....................................Clock timer
● Programmable timer ..................................8-bit timer × 3 ch., 16-bit timer × 1 ch. + 8-bit timer × 1 ch.,
8-bit PWM × 2 ch. + 8-bit timer × 1 ch.
or 16-bit PWM × 1 ch. + 8-bit timer × 1 ch. (∗2)
● Watchdog timer..........................................Built-in
● Sound generator........................................With envelope and 1-shot output functions
● R/f converter..............................................2 channels, CR oscillation type, 20-bit counter
Supports resistive humidity sensors.
● Multiply-divide circuit ................................8-bit accumulator × 1 ch.
Multiplication: 8 bits × 8 bits
→ 16-bit product
Division:
16 bits ÷ 8 bits → 8-bit quotient and 8-bit remainder
● External interrupt.......................................Input interrupt:
2 systems
● Internal interrupt........................................Clock timer interrupt:
Programmable timer interrupt: 5 systems
R/f converter interrupt: 2 systems
4 systems
● Power supply voltage................................2.4 to 3.6 V: Max. 4 MHz operation in normal mode
2.4 to 3.6 V: 32 kHz operation in halver mode
1.8 to 3.6 V: 32 kHz operation in normal mode
● Operating temperature range ...................-20 to 70°C
● Current consumption (Typ.) .....................Low-speed operation (OSC1 = 32 kHz crystal oscillation):
During HALT
During operation
3.0 V (LCD ON, halver mode)
3.0 V (LCD ON, halver mode)
0.65 μA
2.5 μA
High-speed operation (OSC3 = 4 MHz ceramic oscillation):
During operation
3.0 V (LCD ON)
800 μA
● Shipping form.............................................Chip (no polyimide)
∗1: Can be selected with mask option ∗2: Can be selected with software
SEIKO EPSON CORPORATION
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