ST72521R9-Auto STMicroelectronics, ST72521R9-Auto Datasheet - Page 33

• Manufacturer Part Number: ST72521R9-Auto
• Description: 8-bit MCU for automotive
• Manufacturer: STMicroelectronics

Specifications of ST72521R9-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

ST72521xx-Auto
4.3.1
Note:
4.4
Figure 5.
Readout protection
Readout protection, when selected, provides a protection against program memory content
extraction and against write access to Flash memory. Even if no protection can be
considered as totally unbreakable, the feature provides a very high level of protection for a
general purpose microcontroller.
In Flash devices, this protection is removed by reprogramming the option. In this case, the
entire program memory is first automatically erased and the device can be reprogrammed.
ICC interface
ICC needs a minimum of 4 and up to 6 pins to be connected to the programming tool (see
Figure
BFFFh
D7FFh
DFFFh
EFFFh
FFFFh
3FFFh
7FFFh
9FFFh
1000h
RESET:
V
ICCCLK:
ICCDATA:
ICCSEL/V
OSC1 (or OSCIN): main clock input for external source (optional)
V
SS
DD
6). These pins are:
:
:
4K
Memory map and sector address
PP
:
8K
device reset
device power supply ground
ICC output serial clock pin
ICC input/output serial data pin
programming voltage
application board power supply (optional, see
2 Kbytes
10K
Doc ID 17660 Rev 1
8 Kbytes
16K
4 Kbytes
4 Kbytes
16 Kbytes
24K
24 Kbytes
32K
40 Kbytes 52 Kbytes
48K
Flash program memory
Figure
60K
6,
FLASH
MEMORY SIZE
SECTOR 2
SECTOR 1
SECTOR 0
Note
3)
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