ST72340 Datasheet, PDF (1/191 Pages) STMicroelectronics – 8-BIT MCU WITH UP TO 16K FLASH MEMORY, 10-BIT ADC, TWO 16-BIT TIMERS, TWO I2C, SPI, SCI

ST72340, ST72344, ST72345
8-BIT MCU WITH UP TO 16K FLASH MEMORY,
10-BIT ADC, TWO 16-BIT TIMERS, TWO I²C, SPI, SCI
■ Memories
– up to 16 Kbytes Program memory: Single volt-
age extended Flash (XFlash) with read-out
and write protection, In-Circuit and In-Applica-
tion Programming (ICP and IAP). 10K write/
erase cycles guaranteed, data retention: 20
years at 55°C.
– up to 1 Kbyte RAM
– 256 bytes data EEPROM with read-out pro-
tection. 300K write/erase cycles guaranteed,
data retention: 20 years at 55°C.
LQFP48
7x7
LQFP44
10 x 10
■ Clock, Reset and Supply Management
– Power On / Power Off safe reset with 3 pro-
grammable threshold levels (LVD)
– Auxiliary Voltage Detector (AVD)
– Clock sources: crystal/ceramic resonator os-
cillators, high-accuracy internal RC oscillator
or external clock
– PLL for 4x or 8x frequency multiplication
– 5 Power Saving Modes: Slow, Wait, Halt,
Auto-Wakeup from Halt and Active Halt
– Clock output capability (f_CPU)
■ Interrupt Management
– Nested interrupt controller
– 10 interrupt vectors plus TRAP and RESET
– 9 external interrupt lines on 4 vectors
■ Up to 34 I/O Ports
– up to 34 multifunctional bidirectional I/O lines
– up to 12 high sink outputs (10 on 32-pin devic-
es)
■ 4 Timers
– Configurable window watchdog timer
– Realtime base
– 16-bit timer A with: 1 input capture, 1 output
compares, external clock input, PWM and
Pulse generator modes
LQFP32
7x7
– 16-bit timer B with: 2 input captures, 2 output
compares, PWM and Pulse generator modes
■ 3 Communication Interfaces
– I²C Multi Master / Slave
– I²C Slave 3 Addresses No Stretch with DMA
access and Byte Pair Coherency on I²C Read
– SCI asynchronous serial interface (LIN com-
patible)
– SPI synchronous serial interface
■ 1 Analog peripheral
– 10-bit ADC with 12 input channels (8 on 32-
pin devices)
■ Instruction Set
– 8-bit data manipulation
– 63 basic instructions with illegal opcode de-
tection
– 17 main addressing modes
– 8 x 8 unsigned multiply instruction
■ Development tools
– Full hardware/software development package
– On-Chip Debug Module
Device Summary
Features
Program memory - bytes
RAM (stack) - bytes
EEPROM data - bytes
Common peripherals
Other peripherals
Int high-accuracy 1MHz RC
CPU Frequency
Temperature Range
Package
ST72F340
ST72F344
ST72F345
8K
16K
8K
16K
16K
512 (256)
1K (256)
512 (256)
1K (256)
1K (256)
256
256
256
256
256
Window Watchdog, 2 16-bit Timers, SCI, SPI, I2CMMS
-
10-bit ADC
I2C3SNS, 10-bit ADC
Not present
Present
Present
8MHz @ 3.3V to 5.5V, 4MHz @ 2.7V to 5.5V
-40°C to +85 °C
LQFP32 7x7, LQFP44 10x10
LQFP48 7x7
Rev. 2
October 2006
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