24AA64/24LC64
1.2
AC C haracteristics
V CC = +1.8V to +5.5V
AC CHARACTERISTICS
Industrial (I): T AMB = -40°C to +85°C
Automotive (E): T AMB = -40°C to +125°C
Param.
No.
1
2
3
4
5
Sym
F CLK
T HIGH
T LOW
T R
T F
Characteristic
Clock frequency
Clock high time
Clock low time
SDA and SCL rise time
(Note 1)
SDA and SCL fall time
Min
600
4000
1300
4700
Max
400
100
300
1000
300
Units
kHz
ns
ns
ns
ns
Conditions
2.5V ≤ V CC ≤ 5.5V
1.8V ≤ V CC < 2.5V (24AA64)
2.5V ≤ V CC ≤ 5.5V
1.8V ≤ V CC < 2.5V (24AA64)
2.5V ≤ V CC ≤ 5.5V
1.8V ≤ V CC < 2.5V (24AA64)
2.5V ≤ V CC ≤ 5.5V
1.8V ≤ V CC < 2.5V (24AA64)
(Note 1)
6
T HD : STA START condition hold time
600
4000
ns
2.5V ≤ V CC ≤ 5.5V
1.8V ≤ V CC < 2.5V (24AA64)
7
T SU : STA
START condition setup time
600
4700
ns
2.5V ≤ V CC ≤ 5.5V
1.8V ≤ V CC < 2.5V (24AA64)
8
9
10
T HD : DAT Data input hold time
T SU : DAT Data input setup time
T SU : STO STOP condition setup time
0
100
250
600
4000
ns
ns
ns
(Note 2)
2.5V ≤ V CC ≤ 5.5V
1.8V ≤ V CC < 2.5V (24AA64)
2.5V ≤ V CC ≤ 5.5V
1.8V ≤ V CC < 2.5V (24AA64)
11
12
T AA
T BUF
Output valid from clock
(Note 2)
Bus free time: Time the bus
must be free before a new
1300
4700
900
3500
ns
ns
2.5V ≤ V CC ≤ 5.5V
1.8V ≤ V CC < 2.5V (24AA64)
2.5V ≤ V CC ≤ 5.5V
1.8V ≤ V CC < 2.5V (24AA64)
transmission can start
13
T OF
Output fall time from V IH min- 20+0.1C B
imum to V IL maximum —
250
250
ns
2.5V ≤ V CC ≤ 5.5V
1.8V ≤ V CC ≤ 2.5V (24AA64)
14
T SP
Input filter spike suppression
50
ns
(Notes 1 and 3)
(SDA and SCL pins)
15
T WC
Write cycle time (byte or
5
ms
page)
16
Endurance
1M
cycles 25°C, V CC = 5.0V, Block Mode
(Note 4)
Note 1: Not 100% tested. C B = total capacitance of one bus line in pF.
2: As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region
(minimum 300 ns) of the falling edge of SCL to avoid unintended generation of START or STOP conditions.
3: The combined T SP and V HYS specifications are due to new Schmitt Trigger inputs which provide improved
noise spike suppression. This eliminates the need for a T I specification for standard operation.
4: This parameter is not tested but ensured by characterization. For endurance estimates in a specific appli-
cation, please consult the Total Endurance Model which can be obtained on Microchip’s website:
www.microchip.com.
? 2002 Microchip Technology Inc.
DS21189F-page 3
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