ST10F273Z4 STMicroelectronics, ST10F273Z4 Datasheet - Page 25

• Manufacturer Part Number: ST10F273Z4
• Description: 16-BIT MICROCONTROLLER WITH MAC UNIT, UP TO 832 KBYTES FLASH MEMORY AND UP TO 68 KBYTES RAM
• Manufacturer: STMicroelectronics

Specifications of ST10F273Z4

• Single Voltage Supply: 5 V ±10%

ST10F273Z4
5
5.1
5.2
5.2.1
Internal Flash memory
Overview
The on-chip Flash is composed by one matrix module divided in two banks that can be read
and modified indipendently one of the other: one bank can be read while another bank is
under modification. Bank 0 is 384 Kbytes wide, Bank 1 is 128 Kbytes wide.
This module is on ST10 Internal bus, so it is called IFlash.
Figure 4.
The programming operations of the flash are managed by an embedded Flash
Program/Erase Controller (FPEC). The High Voltages needed for Program/Erase operations
are internally generated.
The Data bus is 32-bit wide for fetch accesses to IFlash, while it is 16-bit wide for read
accesses to IFlash. Read/write accesses to IFlash Control Registers area are 16-bit wide.
Functional description
Structure
Following table shows the Address space reserved to the Flash module.
Table 4.
IFlash sectors
Registers and Flash internal reserved area
Bank 1: 128 Kbyte
Bank 0: 384 Kbyte
8 Kbyte test-Flash
IFlash (Module I)
program memory
program memory
Flash structure
Address space of the Flash module
Description
+
I-BUS interface
Control Section
Program/erase
HV and Ref.
controller
generator
0x0E 0000 to 0x0E FFFF
0x00 0000 to 0x08 FFFF
X-BUS interface
Addresses
Internal Flash memory
Flash control
registers
512 Kbytes
64 Kbytes
Size
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