ST72T331N2T6 STMicroelectronics, ST72T331N2T6 Datasheet - Page 35

• Manufacturer Part Number: ST72T331N2T6
• Description: 8-bit Microcontrollers - MCU OTP EPROM 8K SPI/SCI
• Manufacturer: STMicroelectronics

Specifications of ST72T331N2T6

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: ST7
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 16 MHz
• Program Memory Size: 8 KB
• Data Ram Size: 384 B
• On-chip Adc: Yes
• Package / Case: TQFP-64
• Mounting Style: SMD/SMT
• A/d Bit Size: 8 bit
• A/d Channels Available: 8
• Interface Type: SCI, SPI
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 44
• Number Of Timers: 2
• On-chip Dac: No
• Program Memory Type: EPROM
• Factory Pack Quantity: 90
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 3.5 V

EEPROM (Cont’d)
Figure 23. EEPROM Programming Cycle
Figure 24. EEPROM Programming Flowchart
INTERNAL
PROGRAMMING
VOLTAGE
E2LAT
E2PGM
INTERRUPT
REQUEST
Bits of the address)
Write 1 to 16 bytes
(with the same 12
in the same row
Most Significant
Write of
latches
data
Read operation not possible
Erase cycle
Write bytes in
(Write mode)
(Read mode)
E2PGM=0
EEPROM
E2LAT=1
E2PGM=0
E2LAT=0
Tprog
Write cycle
Wait for end of
programming
programming
or interrupt)
E2PGM=1
(E2LAT=0
E2LAT=1
Read operation allowed
cycle)
(Start
ST72E331 ST72T331
Interrupt
vector fetch
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