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AT24HC02B-W-11 Datasheet(PDF) 7 Page - ATMEL Corporation

Part # AT24HC02B-W-11
Description  Two-wire Serial EEPROM 2K (256 x 8)
Download  19 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT24HC02B-W-11 Datasheet(HTML) 7 Page - ATMEL Corporation

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7
5134E–SEEPR–3/08
AT24HC02B
2-WIRE SOFTWARE RESET: After an interruption in protocol, power loss or system reset, any
two-wire part can be reset by following these steps: (a) Clock up to 9 cycles, (b) Look for SDA
high in each cycle while SCL is high, (c) Create a start condition as SDA is high. The device is
ready for next communication after above steps have been completed.
Figure 5-3.
Software Reset
Figure 5-4.
Bus Timing
Figure 5-5.
Write Cycle Timing
Notes:
1. The write cycle time tWR is the time from a valid stop condition of a write sequence to the end of the internal clear/write cycle.
Start bit
Stop bit
Start bit
Dummy Clock Cycles
SCL
SDA
12
38
9
SCL
SDA IN
SDA OUT
t
F
t
HIGH
t
LOW
t
LOW
t
R
t
AA
t
DH
t
BUF
t
SU.STO
t
SU.DAT
t
HD.DAT
t
HD.STA
t
SU.STA
t
wr
(1)
STOP
CONDITION
START
CONDITION
WORDn
ACK
8th BIT
SCL
SDA


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