PRODUCT OVERVIEW S3C8245/P8245/C8249/P8249
1-2
FEATURESMemory
•ROM: 32K-byte (S3C8249/P8249)
•ROM: 16K-byte (S3C8245/P8245)
•RAM: 1056-Byte (S3C8249/P8249)
•RAM: 544-Byte (S3C8245/P8245)
•Data memory mapped I/O
Oscillation Sources
•Crystal, ceramic, RC (main)
•Crystal for subsystem clock
•Main system clock frequency 1-10 MHz
(3 MHz at 1.8 V, 10 MHz at 2.7 V)
•Subsystem clock frequency: 32.768 kHz
•CPU clock divider (1/1, 1/2, 1/8, 1/16)
Two Power-Down Modes
•Idle (only CPU clock stops)
•Stop (System clock stops)
Interrupts
•6 level 8 vector 8 internal interrupt
•2 level 8 vector 8 external interrupt
45 I/O Pins
•45 configurable I/O pins
Basic Timer
•Overflow signal makes a system reset.
•Watchdog function
8-Bit Timer/Counter A
•Programmable 8-bit timer
•Interval, capture, PWM mode
•Match/capture, overflow interrupt
8-Bit Timer/Counter B
•Programmable 8-bit timer
•Carrier frequency generator
16-Bit Timer/Counter 0
•Programmable 16-bit timer
•Match interrupt generates
16-Bit Timer/Counter 1
•Programmable 16-bit timer
•Interval, capture, PWM mode
•Match/capture, overflow interrupt
Watch Timer
•Real-time and interval time measurement
•Clock generation for LCD
•Four frequency outputs for buzzer sound
LCD Controller/Driver
•Maximum 16-digit LCD direct drive capability
•Display modes: static, 1/2 duty (1/2 bias)
•1/3 duty (1/2 or 1/3 bias), 1/4 duty (1/3 bias)
A/D Converter
•Eight analog input channels
•50
µ
s conversion speed at 1 MHz fADC clock
•10-bit conversion resolution
8-Bit Serial I/O Interface
•8-bit transmit/receive mode
•8-bit receive mode
•LSB-first/MSB-first transmission selectable
•Internal/external clock source
Voltage Booster
•LCD display voltage supply
•S/W control en/disable
•3.0 V drive
Voltage Detector
•Programmable detection voltage
(2.2 V, 2.4 V, 3.0 V, 4.0 V)
•En/Disable S/W selectable
Instruction Execution Times
•400 ns at 10 MHz (main)
•122 us at 32.768 kHz (subsystem)
Operating Temperature Range
•-25 °C to 85 °C
Operating Voltage Range
•1.8 V to 5.5 V
Package Type
•80-QFP-1420C
•80-TQFP-1212