ST10F272M-4QR3 STMicroelectronics, ST10F272M-4QR3 Datasheet - Page 25

• Manufacturer Part Number: ST10F272M-4QR3
• Description: MCU 16BIT 256K FLASH 144-PQFP
• Manufacturer: STMicroelectronics
• Series: ST10r

Specifications of ST10F272M-4QR3

• Core Processor: ST10
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: ASC, CAN, EBI/EMI, I²C, SSC, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 111
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 20K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 24x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 144-MQFP, 144-PQFP
• Processor Series: ST10F27x
• Core: ST10
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

ST10F272M
5
5.1
5.2
5.2.1
5.2.2
Internal Flash memory
Overview
The on-chip Flash is composed of one matrix module, 256 Kbytes wide. This module is
called IFlash because it is on the ST10 internal bus.
Figure 5.
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 generated internally.
The data bus is 32-bit wide for fetch accesses to IFlash, whereas it is 16-bit wide for read
accesses to IFlash control registers. Write accesses are possible only in the IFlash control
registers area.
Functional description
Structure
Table 3
Table 3.
Modules structure
The IFlash module is composed of a bank (bank 0) of 256 Kbytes of program memory
divided in eight sectors (B0F0...B0F7). Bank 0 also contains a reserved sector named test-
Flash.
IFlash sectors
Reserved IBus area
Registers and Flash internal reserved area
below shows the address space reserved for the Flash module.
Flash structure
Address space reserved for the Flash module
Description
Bank 0: 256 Kbyte
4 Kbyte test-Flash
program memory
Flash control
registers
IFlash
+
I-bus interface
0x00 0000 to 0x04 FFFF
0x05 0000 to 0x07 FFFF
0x08 0000 to 0x08 FFFF
Addresses
Program/erase
Control section
HV and ref.
controller
generator
Internal Flash memory
256 Kbytes
192 Kbytes
64 Kbytes
Size
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