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ST72E331 Scheda tecnica(PDF) 33 Page - STMicroelectronics

Il numero della parte ST72E331
Spiegazioni elettronici  8-BIT MCU WITH 8 TO 16K OTP/EPROM, 256 EEPROM, 384 TO 512 BYTES RAM, ADC, WDG, SCI, SPI AND 2 TIMERS
PDF  107 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72E331 Scheda tecnica(HTML) 33 Page - STMicroelectronics

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ST72E331 ST72T331
5.2 EEPROM (EEP)
5.2.1 Introduction
The Electrically Erasable Programmable Read
Only Memory is used to store data that need a non
volatile back-up. The use of the EEPROM requires
a basic protocol described in this chapter.
5.2.2 Main Features
s
Up to 16 bytes programmed in the same cycle
s
EEPROM mono-voltage (charge pump)
s
Chained erase and programming cycles
s
Internal control of the global programming cycle
duration
s
End of programming cycle interrupt flag
s
WAIT mode management
Figure 22. EEPROM Block Diagram
BUFFER
ROW
DECODER
16*8 BITS
DATA LATCHES
DATA
MULTIPLEXER
HIGH VOLTAGE PUMP
EEPROM
MEMORY
MATRIX
1 ROW = 16 * 8 BITS
ADDRESS
DECODER
ADDRESS
BUS
DATA
BUS
E2ITE E2LAT E2PGM
EEPCR
RESERVED
.
.
.
.
.
.
128
128
8
8
4
4
12
INTERRUPT
REQUEST
FALLING
EDGE
DETECTOR
33



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