Ac characteristics – Rainbow Electronics AT24C64 User Manual
Page 5
5
AT24C32/64
0336I–SEEPR–07/02
Note:
1. This parameter is characterized and is not 100% tested.
AC Characteristics
Applicable over recommended operating range from T
A
= -40
°C to +85°C, V
CC
= +1.8V to +5.5V, CL = 1 TTL Gate and 100
pF (unless otherwise noted).
Symbol
Parameter
1.8-volt
2.7-, 2.5-volt
5.0-volt
Units
Min
Max
Min
Max
Min
Max
f
SCL
Clock Frequency, SCL
100
100
400
kHz
t
LOW
Clock Pulse Width Low
4.7
4.7
1.2
µs
t
HIGH
Clock Pulse Width High
4.0
4.0
0.6
µs
t
I
Noise Suppression Time
(1)
100
100
50
ns
t
AA
Clock Low to Data Out Valid
0.1
4.5
0.1
4.5
0.1
0.9
µs
t
BUF
Time the bus must be free
before a new transmission can start
(1)
4.7
4.7
1.2
µs
t
HD.STA
Start Hold Time
4.0
4.0
0.6
µs
t
SU.STA
Start Set-up Time
4.7
4.7
0.6
µs
t
HD.DAT
Data In Hold Time
0
0
0
µs
t
SU.DAT
Data In Set-up Time
200
200
100
ns
t
R
Inputs Rise Time
(1)
1.0
1.0
0.3
µs
t
F
Inputs Fall Time
(1)
300
300
300
ns
t
SU.STO
Stop Set-up Time
4.7
4.7
0.6
µs
t
DH
Data Out Hold Time
100
100
50
ns
t
WR
Write Cycle Time
20
10
10
ms
Endurance
(1)
5.0V, 25
°C, Page Mode
1M
1M
1M
Write
Cycles