ST72344S4 STMicroelectronics, ST72344S4 Datasheet - Page 27

• 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

ST72344xx ST72345xx
4
4.1
4.2
4.3
Flash program memory
Introduction
The ST7 single voltage extended Flash (XFlash) is a non-volatile memory that can be
electrically erased and programmed either on a byte-by-byte basis or up to 32 bytes in
parallel.
The XFlash devices can be programmed off-board (plugged in a programming tool) or on-
board using In-Circuit Programming or In-Application Programming.
The array matrix organization allows each sector to be erased and reprogrammed without
affecting other sectors.
Main features
●
●
●
●
●
Programming modes
The ST7 can be programmed in three different ways:
●
●
●
ICP (in-circuit programming)
IAP (in-application programming)
ICT (in-circuit testing) for downloading and executing user application test patterns in
RAM
Sector 0 size configurable by option byte
Read-out and write protection
Insertion in a programming tool. In this mode, Flash sectors 0 and 1, option byte row
and data EEPROM (if present) can be programmed or erased.
In-circuit programming. In this mode, Flash sectors 0 and 1, option byte row and data
EEPROM (if present) can be programmed or erased without removing the device from
the application board.
In-application programming. In this mode, sector 1 and data EEPROM (if present) can
be programmed or erased without removing the device from the application board and
while the application is running.
Doc ID 12321 Rev 5
Flash program memory
27/247