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NM34W02 Datasheet(PDF) 4 Page - Fairchild Semiconductor

Part # NM34W02
Description  2K-Bit Standard 2-Wire Bus Interface Serial EEPROM with Full Array Write Protect
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

NM34W02 Datasheet(HTML) 4 Page - Fairchild Semiconductor

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NM34W02 Rev. C.2
AC Conditions of Test
Input Pulse Levels
V
CC x 0.1 to VCC x 0.9
Input Rise and Fall Times
10 ns
Input & Output Timing Levels
V
CC x 0.5
Output Load
1 TTL Gate and CL = 100 pF
Read and Write Cycle Limits (Standard and Low V
CC Range 2.7V - 5.5V)
Symbol
Parameter
100 KHz
400 KHz
Units
Min
Max
Min
Max
fSCL
SCL Clock Frequency
100
400
KHz
T
I
Noise Suppression Time Constant at
SCL, SDA Inputs (Minimum V
IN
100
50
ns
Pulse width)
t
AA
SCL Low to SDA Data Out Valid
0.3
3.5
0.1
0.9
µs
tBUF
Time the Bus Must Be Free before
4.7
1.3
µs
a New Transmission Can Start
tHD:STA
Start Condition Hold Time
4.0
0.6
µs
t
LOW
Clock Low Period
4.7
1.5
µs
tHIGH
Clock High Period
4.0
0.6
µs
t
SU:STA
Start Condition Setup Time
4.7
0.6
µs
(for a Repeated Start Condition)
t
HD:DAT
Data in Hold Time
0
0
ns
t
SU:DAT
Data in Setup Time
250
100
ns
tR
SDA and SCL Rise Time
1
0.3
µs
t
F
SDA and SCL Fall Time
300
300
ns
tSU:STO
Stop Condition Setup Time
4.7
0.6
µs
t
DH
Data Out Hold Time
300
50
ns
tWR
Write Cycle Time - NM34W02
10
10
ms
(Note 3)
- NM34W02L, NM34W02LZ
15
15
Note 3: The write cycle time (t
WR) is the time from a valid stop condition of a write sequence to the end of the internal erase/program cycle. During the write cycle, the
NM34W02 bus interface circuits are disabled, SDA is allowed to remain high per the bus-level pull-up resistor, and the device does not respond to its slave address.


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