AT24C64A(2004) データシートの表示（PDF） - Atmel Corporation
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AT24C64A Datasheet PDF : 20 Pages
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AT24C32A/64A
AC Characteristics
Applicable over recommended operating range from TAI = -40° C to +85° C, TAE = -40° C to +125° C, VCC = +1.8V to +5.5V,
CL = 1 TTL Gate and
100 pF (unless otherwise noted).
AT24C32A
AT24C64A
1.8V
2.5V – 5.0V
1.8V – 3.6V
5.0V
Symbol
Parameter
Min
Max
Min
Max
Min
Max
Min
Max
Units
fSCL
tLOW
tHIGH
tI
tAA
tBUF
Clock Frequency, SCL
100
400
400
400
kHz
Clock Pulse Width Low
4.7
1.3
1.3
1.2
µs
Clock Pulse Width High
4.0
0.6
0.6
0.6
µs
Noise Suppression Time(1)
100
50
100
50
ns
Clock Low to Data Out Valid 0.1
4.5
0.1
0.9
0.2
0.9
0.1
0.9
µs
Time the bus must be free
before a new transmission 4.7
1.3
1.3
1.2
µs
can start(2)
tHD.STA
tSU.STA
tHD.DAT
tSU.DAT
tR
tF
tSU.STO
tDH
tWR
Start Hold Time
Start Set-up Time
Data In Hold Time
Data In Set-up Time
Inputs Rise Time(2)
Inputs Fall Time(2)
Stop Set-up Time
Data Out Hold Time
Write Cycle Time
Endurance(1) 5.0V, 25° C, Page Mode
4.0
0.6
0.6
0.6
µs
4.7
0.6
0.6
0.6
µs
0
0
0
0
µs
200
100
100
100
ns
1.0
0.3
0.3
0.3
µs
300
300
300
300
ns
4.7
0.6
0.6
0.6
µs
100
50
200
50
ns
20 or 5(3)
10 or 5(3)
20 or 5(3)
10 or 5(3)
ms
1M
1M
1M
1M
Write
Cycles
Notes:
1. This parameter is characterized and is not 100% tested (TA = 25° C).
2. This parameter is characterized and is not 100% tested.
3. The Write Cycle Time of 5 ms only applies to the AT24C32A/64A devices bearing the process letter “A” on the package (the
mark is located in the lower right corner on the top side of the package).
5
3054N–SEEPR–2/04
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