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AT94S Datasheet(PDF) 8 Page - ATMEL Corporation

Part # AT94S
Description  Secure 5K - 40K Gates of AT40K FPGA with 8-bit Microcontroller, up to 36 Kbytes of SRAM and On-chip Program Storage EEPROM
PDF  31 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT94S Datasheet(HTML) 8 Page - ATMEL Corporation

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AT94S Secure Family
2314D–FPSLI–2/04
Programming Summary:
Read from Whole Device
SER_EN
≤ Low
START
Send Start Condition
Send Device Address
($A6)
ACK?
Send MSB of
EEPROM Address
(1)
ACK?
Send LSB of
EEPROM Address
(1)
Send Start condition
BYTE_COUNT
≤ 0
Send Device Address
($A7)
Yes
No
No
Read Data Byte
(2)
BYTE_COUNT
≤
BYTE_COUNT+1
Send ACK
END
BYTE_COUNT=
TT_BYTE?
No
ACK?
Yes
No
Yes
Sent Stop Condition
SER_EN
≤ High
Low-power (Standby)
ACK?
No
Yes
Yes
Middle Byte
EEPROM Address
ACK?
No
Yes
Notes:
1. The 1-Mbit part requires three EEPROM address
bytes; all three bytes must be individually ACK’d by
the EEPROM.
2. Data byte received/sent LSB to MSB
EEPROM Address is Defined as:
TT_BYTE
AT17LV010
00 00 00 \h
AT17LV010
131072 \d
cSDA
cSCK
cSDA
cSCK
SAMPLE DATA BIT
STOP CONDITION
START CONDITION
cSDA
cSCK
ACK BIT
cSDA
cSCK
ACK



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