AT24C32C/64C
AC Characteristics
Applicable over recommended operating range from TAI = -40°C to +85°C, VCC = +1.8V to +5.5V, CL = 1 TTL Gate and
100 pF (unless otherwise noted)
1.8-volt
5.0-volt
Max
Symbol
fSCL
tLOW
tHIGH
ti
Parameter
Min
Max
Min
Units
kHz
µs
Clock Frequency, SCL
Clock Pulse Width Low
Clock Pulse Width High
Noise Suppression Time(1)
Clock Low to Data Out Valid
400
1000
1.3
0.6
0.4
0.4
µs
100
0.9
50
ns
tAA
0.05
1.3
0.05
0.5
0.55
µs
Time the bus must be free before a new
transmission can start(1)
tBUF
µs
tHD.STA
tSU.STA
tHD.DAT
tSU.DAT
tR
Start Hold Time
0.6
0.6
0
0.25
0.25
0
µs
µs
µs
ns
µs
ns
µs
ns
ms
Start Set-up Time
Data In Hold Time
Data In Set-up Time
Inputs Rise Time(1)
Inputs Fall Time(1)
Stop Set-up Time
Data Out Hold Time
Write Cycle Time
100
100
0.3
0.3
tF
300
100
tSU.STO
tDH
0.6
50
0.25
50
tWR
5
5
Write
Cycles
Endurance(1)
25°C, Page Mode, 3.3V
1,000,000
Notes: 1. This parameter is ensured by characterization.
2. AC measurement conditions:
RL (connects to VCC): 1.3 kΩ (2.5V, 5.0V), 10 kΩ (1.8V)
Input pulse voltages: 0.3 VCC to 0.7 VCC
Input rise and fall times: ≤ 50 ns
Input and output timing reference voltages: 0.5 VCC
5
5298A–SEEPR–1/08
ATMEL [ ATMEL ]
