ST72344S4 STMicroelectronics, ST72344S4 Datasheet - Page 130

• Manufacturer Part Number: ST72344S4
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST72344S4

• Up To 16 Kbytes Program Memory: single voltage extended Flash (XFlash) with readout and write protection, in-circuit and inapplication programming (ICP and IAP). 10K write/erase cycles guaranteed, data retention
• 256 Bytes Data Eeprom With Readout Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55 °C.
• Clock Sources: crystal/ceramic resonator oscillators, high-accuracy internal RC oscillator or external clock
• 5 Power-saving Modes: Slow, Wait, Halt, Auto-wakeup from Halt and Active-halt
• 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

On-chip peripherals
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Through these pins, serial data is transmitted and received as frames comprising:
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This interface uses two types of baud rate generator:
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peripherals that have shift registers (e.g. LCD drivers). The clock phase and polarity
are software programmable.
TDO: Transmit Data Output. When the transmitter is disabled, the output pin returns to
its I/O port configuration. When the transmitter is enabled and nothing is to be
transmitted, the TDO pin is at high level.
RDI: Receive Data Input is the serial data input. Oversampling techniques are used for
data recovery by discriminating between valid incoming data and noise.
An Idle Line prior to transmission or reception
A start bit
A data word (8 or 9 bits) least significant bit first
A Stop bit indicating that the frame is complete.
A conventional type for commonly-used baud rates,
An extended type with a prescaler offering a very wide range of baud rates even with
non-standard oscillator frequencies.
Doc ID 12321 Rev 5
ST72344xx ST72345xx