ST72321AR9-Auto STMicroelectronics, ST72321AR9-Auto Datasheet - Page 223

• Manufacturer Part Number: ST72321AR9-Auto
• Description: 8-bit MCU for automotive with 60 Kbyte Flash, 10-bit ADC, timers, SPI, SCI and I2C interfaces
• Manufacturer: STMicroelectronics

Specifications of ST72321AR9-Auto

• Hdflash Endurance: 100 cycles, data retention 20 years
• Clock Sources: crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
• 4 Power Saving Modes: Halt, Active Halt, Wait and Slow

ST72321xx-Auto
21
21.1
21.1.1
Table 140. Flash option bytes
Default
value:
HALT
7
1
WDG
Device configuration and ordering information
Each device is available for production in user programmable versions (Flash) as well as in
factory coded versions (ROM/FASTROM).
ST72321-Auto devices are ROM versions, ST72P321-Auto devices are Factory Advanced
Service Technique ROM (FASTROM) versions: They are factory-programmed HDFlash
devices. Flash devices are shipped to customers with a default content, whereas
ROM/FASTROM factory coded parts contain the code supplied by the customer. This
implies that Flash devices have to be configured by the customer using the option bytes
while the ROM/FASTROM devices are factory-configured.
Detailed device configuration and ordering information is presented in the following
Section 21.1: Flash devices
transfer of customer
Flash devices
Flash configuration
The option bytes allow the hardware configuration of the microcontroller to be selected.
They have no address in the memory map and can be accessed only in programming mode
(for example, using a standard ST7 programming tool). The default content of the Flash is
fixed to FFh. To program the Flash devices directly using ICP, Flash devices are shipped to
customers with the internal RC clock source enabled. In masked ROM devices, the option
bytes are fixed in hardware by the ROM code (see option list).
SW
6
1
Res
5
1
Static option byte 0
4
1
0
VD
code.
3
0
0
Res
2
1
and
Doc ID 13829 Rev 1
Section 21.2: ROM device ordering information and
1
1
0
1
Device configuration and ordering information
7
1
6
1
OSCTYPE
5
1
1
Static option byte 1
4
0
0
3
2
1
OSCRANGE
2
1
1
1
0
1
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0
1