ST7232AK2-Auto STMicroelectronics, ST7232AK2-Auto Datasheet - Page 27
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ST7232AK2-Auto
Manufacturer Part Number
ST7232AK2-Auto
Description
8-bit MCU for automotive, 16 Kbyte Flash, 10-bit ADC, 4 timers, SPI, SCI
Manufacturer
STMicroelectronics
Datasheet
1.ST7232AK2-AUTO.pdf
(201 pages)
Specifications of ST7232AK2-Auto
Hdflash Endurance
100 cycles, data retention
Clock Sources
crystal/ceramic resonator oscillators and bypass for external clock
Four Power Saving Modes
halt, active halt, wait and slow
Main Clock Controller With
real time base, beep and clock-out capabilities
Two 16-bit Timers With
2 input captures, 2 output compares, PWM and pulse generator modes
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ST7232Axx-Auto
4
4.1
4.2
4.3
Introduction
Main features
Structure
Flash program memory
The ST7 dual voltage high density Flash (HDFlash) is a non-volatile memory that can be
electrically erased as a single block or by individual sectors and programmed on a byte-by-
byte basis using an external V
The HDFlash devices can be programmed and erased off-board (plugged in a programming
tool) or on-board using ICP (in-circuit programming) or IAP (in-application programming).
The array matrix organisation allows each sector to be erased and reprogrammed without
affecting other sectors.
●
●
●
●
The Flash memory is organised in sectors and can be used for both code and data storage.
Depending on the overall Flash memory size in the microcontroller device, there are up to
three user sectors (see
avoid unnecessary erasing of the whole Flash memory when only a partial erasing is
required.
The first two sectors have a fixed size of 4 Kbytes (see
upper part of the ST7 addressing space so the reset and interrupt vectors are located in
sector 0 (F000h-FFFFh).
Table 4.
Three Flash programming modes:
–
–
–
ICT (in-circuit testing) for downloading and executing user application test patterns in
RAM
Read-out protection
Register access security system (RASS) to prevent accidental programming or erasing
Insertion in a programming tool. In this mode, all sectors including option bytes
can be programmed or erased
ICP (in-circuit programming). In this mode, all sectors including option bytes can
be programmed or erased without removing the device from the application board
IAP (in-application programming) In this mode, all sectors except sector 0, can be
programmed or erased without removing the device from the application board
and while the application is running
Sectors available in Flash devices
Flash size (bytes)
4K
8K
Table
4). Each of these sectors can be erased independently to
PP
supply.
Figure
Available sectors
5). They are mapped in the
Sectors 0,1
Sector 0
Flash program memory
27/201
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