ST72344S4 STMicroelectronics, ST72344S4 Datasheet - Page 23

• 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
3
Register and memory map
As shown in
registers.
The available memory locations consist of 128 bytes of register locations, up to 1 Kbytes of
RAM, 256 bytes of Data EEPROM and up to 16 Kbytes of user program memory. The RAM
space includes up to 256 bytes for the stack from 0100h to 01FFh.
The highest address bytes contain the user reset and interrupt vectors.
Figure 5.
FFDFh
BFFFh
FFE0h
FFFFh
0CFFh
C000h
007Fh
047Fh
0BFFh
0C00h
0D00h
0000h
0080h
0480h
Interrupt & Reset Vectors
(512 or 1K Bytes)
Program memory
(8 or 16 KBytes)
See
HW registers
See
Data EEPROM
Figure
Memory map
(256 Bytes)
Reserved
Reserved
Table 17
Table 4
RAM
5, the MCU is capable of addressing 64 Kbytes of memories and I/O
Doc ID 12321 Rev 5
0080h
00FFh
0100h
01FFh
0200h
047Fh
C000h
FFFFh
E000h
16-bit addressing
Short addressing
RAM (zero page)
256 Bytes stack
16 Kbytes
8 Kbytes
RAM
or
or
or
Register and memory map
C000h
E000h
F000h
FB00h
FC00h
FE00h
FFFFh
(4k)
(2k)
(0.5k)
(1k)
SECTOR 2
SECTOR 1
SECTOR 0
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