ST72C334J4TAE STMicroelectronics, ST72C334J4TAE Datasheet - Page 14

• Manufacturer Part Number: ST72C334J4TAE
• Description: 8-bit MCU for automotive with single voltage Flash/ROM memory, ADC, 16-bit timers, SPI, SCI interfaces
• Manufacturer: STMicroelectronics

ST72334xx-Auto, ST72314xx-Auto, ST72124Jx-Auto
4 REGISTER AND MEMORY MAP
As shown in the
addressing 64 Kbytes of memories and I/O regis-
ters.
The available memory locations consist of 128
bytes of register locations, 384 or 512 bytes of
RAM, up to 256 bytes of data EEPROM and 4 or
8 Kbytes of user program memory. The RAM
Figure 4. Memory Map
14/150
01FFh
0200h / 0280h
E000h
FFDFh
027Fh
C000h
007Fh
0BFFh
0CFFh
BFFFh
FFFFh
0080h
0C00h
0D00h
FFE0h
0000h
Figure
Interrupt and Reset Vectors
256 bytes Data EEPROM
(see
8 Kbytes
Program
Memory
512 bytes RAM
Table 6 on page
HW Registers
4, the MCU is capable of
(see
Reserved
Reserved
Table
384 bytes RAM
16 Kbytes
Program
Memory
2)
35)
space includes up to 256 bytes for the stack from
0100h to 01FFh.
The highest address bytes contain the user reset
and interrupt vectors.
IMPORTANT: Memory locations marked as “Re-
served” must never be accessed. Accessing a re-
served area can have unpredictable effects on the
device.
0080h
00FFh
01FFh
01FFh
0100h
00FFh
027Fh
0080h
0200h
C000h
E000h
FFFFh
0100h
16-bit Addressing RAM
16-bit Addressing RAM
Short Addressing RAM
Short Addressing RAM
16-bit Addressing
8 Kbytes
(256 bytes)
(256 bytes)
(128 bytes)
(128 bytes)
Zero page
Zero page
Stack or
Stack or
16 Kbytes
RAM