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ST72340 Datasheet(PDF) 1 Page - STMicroelectronics

Part No. ST72340
Description  8-BIT MCU WITH UP TO 16K FLASH MEMORY, 10-BIT ADC, TWO 16-BIT TIMERS, TWO I2C, SPI, SCI
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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Rev. 2
October 2006
1/191
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.
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 (fCPU)
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
– 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
LQFP32
7 x 7
LQFP44
10 x 10
LQFP48
7 x 7
Features
ST72F340
ST72F344
ST72F345
Program memory - bytes
8K
16K
8K
16K
16K
RAM (stack) - bytes
512 (256)
1K (256)
512 (256)
1K (256)
1K (256)
EEPROM data - bytes
256
256
256
256
256
Common peripherals
Window Watchdog, 2 16-bit Timers, SCI, SPI, I2CMMS
Other peripherals
-
10-bit ADC
I2C3SNS, 10-bit ADC
Int high-accuracy 1MHz RC
Not present
Present
Present
CPU Frequency
8MHz @ 3.3V to 5.5V, 4MHz @ 2.7V to 5.5V
Temperature Range
-40°C to +85 °C
Package
LQFP32 7x7, LQFP44 10x10
LQFP48 7x7
1




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