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S3C7295 Datasheet(PDF) 2 Page - Samsung semiconductor

Part No. S3C7295
Description  The S3C7295 single-chip CMOS microcontroller has been designed for high performance using Samsungs newest 4-bit CPU core, SAM47 (Samsung Arrangeable M
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Maker  SAMSUNG [Samsung semiconductor]
Homepage  http://www.samsung.com/Products/Semiconductor
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S3C7295 Datasheet(HTML) 2 Page - Samsung semiconductor

 
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PRODUCT OVERVIEW
S3C7295/P7295
1-2
FEATURES
Memory
256
× 4-bit RAM (excluding LCD display RAM)
16,384
× 8-bit ROM
8 I/O Pins
I/O: 8 pins
LCD Controller/Driver
44 segments and 16 common terminals
(8, 12 and 16 common selectable)
Internal resistor circuit for LCD bias
Voltage doubler
All dot can be switched on/off
8-bit Basic Timer
4 interval timer functions
Watch-dog timer
8-bit Timer/Counter
Programmable 8-bit timer
Arbitrary clock output (TCLO0)
Inverted clock output (
TCLO0)
Watch Timer
Time interval generation: 0.5 s, 3.9 ms
at 32768 Hz
Four frequency outputs to BUZ pin and
BUZ pin
Clock source generation for LCD
Interrupts
Two internal vectored interrupts
Four external vectored interrupts
Two quasi-interrupts
Memory-Mapped I/O Structure
Data memory bank 15
Power-Down Modes
Idle mode (only CPU clock stops)
Stop mode (main system oscillation stops)
Sub system clock stop mode
Oscillation Sources
Crystal, ceramic, or RC for main system clock
Crystal oscillator for subsystem clock
Main system clock frequency: 4.19 MHz
(typical)
Subsystem clock frequency: 32.768 kHz
CPU clock divider circuit (by 4, 8, or 64)
Instruction Execution Times
0.95, 1.91, 15.3 µs at 4.19 MHz (main)
122 µs at 32.768 kHz (subsystem)
Operating Temperature
– 40 °C to 85 °C
Operating Voltage Range
2.2 V to 3.4 V (0.4 MHz to 4.19 MHz)
Package Type
80-pin QFP or pellet


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