PRODUCT OVERVIEW S3C8245/P8245/C8249/P8249
1-2
FEATURES
Memory
• 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
s conversion speed at 1 MHz f
ADC
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
