Microchip Technology 24LC512-I/SN Memory IC 512 K 64 K x 8 24LC512-I/SN Scheda Tecnica

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24LC512-I/SN
Pagina di 36
 2010 Microchip Technology Inc.
DS21754M-page 3
24AA512/24LC512/24FC512
TABLE 1-2:
AC CHARACTERISTICS
AC CHARACTERISTICS
Electrical Characteristics:
Industrial (I):
V
CC
 = +1.7V to 5.5V
T
A
 = -40°C to +85°C
Automotive (E):
V
CC
 = +2.5V to 5.5V
T
A
 = -40°C to +125°C
Param.
No.
Sym.
Characteristic
Min.
Max.
Units
Conditions
1
F
CLK
Clock frequency



100
400
400
1000
kHz
1.7V 
 V
CC
 
 2.5V
2.5V 
 V
CC
 
 5.5V
1.7V 
 V
CC
 
 2.5V 24FC512
2.5V 
 V
CC
 
 5.5V 24FC512
2
T
HIGH
Clock high time
4000
600
600
500



ns
1.7V 
 V
CC
 
 2.5V
2.5V 
 V
CC
 
 5.5V
1.7V 
 V
CC
 
 2.5V 24FC512
2.5V 
 V
CC
 
 5.5V 24FC512
3
T
LOW
Clock low time
4700
1300
1300
500



ns
1.7V 
 V
CC
 
 2.5V
2.5V 
 V
CC
 
 5.5V
1.7V 
 V
CC
 
 2.5V 24FC512
2.5V 
 V
CC
 
 5.5V 24FC512
4
T
R
SDA and SCL rise time (Note 1)


1000
300
300
ns
1.7V 
 V
CC
< 2.5V
2.5V 
 V
CC
 
 5.5V
1.7V 
 V
CC
 
 5.5V 24FC512
5
T
F
SDA and SCL fall time (Note 1)

300
100
ns
All except, 24FC512
1.7V 
 V
CC
 
 5.5V 24FC512
6
T
HD
:
STA
Start condition hold time
4000
600
600
250



ns
1.7V 
 V
CC
 
 2.5V
2.5V 
 V
CC
 
 5.5V
1.7V 
 V
CC
 
 2.5V 24FC512
2.5V 
 V
CC
 
 5.5V 24FC512
7
T
SU
:
STA
Start condition setup time
4700
600
600
250



ns
1.7V 
 V
CC
 
 2.5V
2.5V 
 V
CC
 
 5.5V
1.7V 
 V
CC
 
 2.5V 24FC512
2.5V 
 V
CC
 
 5.5V 24FC512
8
T
HD
:
DAT
Data input hold time
0
ns
9
T
SU
:
DAT
Data input setup time
250
100
100


ns
1.7V 
 V
CC
 
 2.5V
2.5V 
 V
CC
 
 5.5V
1.7V 
 V
CC
 
 5.5V 24FC512
10
T
SU
:
STO
Stop condition setup time
4000
600
600
250



ns
1.7V 
 V
CC
 
 2.5V
2.5V 
 V
CC
 
 5.5V
1.7V 
 V
CC
 
 2.5V 24FC512
2.5V 
 V
CC
 
 5.5V 24FC512
11
T
SU
:
WP
WP setup time
4000
600
600


ns
1.7V 
 V
CC
 
 2.5V
2.5V 
 V
CC
 
 5.5V
1.7V 
 V
CC
 
 5.5V 24FC512
12
T
HD
:
WP
WP hold time
4700
1300
1300


ns
1.7V 
 V
CC
 
 2.5V
2.5V 
 V
CC
 
 5.5V
1.7V 
 V
CC
 
 5.5V 24FC512
13
T
AA
Output valid from clock (Note 2)



3500
900
900
400
ns
1.7V 
 V
CC
 
 2.5V
2.5V 
 V
CC
 
 5.5V
1.7V 
 V
CC
 
 2.5V 24FC512
2.5V 
 V
CC
 
 5.5V 24FC512
14
T
BUF
Bus free time: Time the bus 
must be free before a new trans-
mission can start
4700
1300
1300
500



ns
1.7V 
 V
CC
 
 2.5V
2.5V 
 V
CC
 
 5.5V
1.7V 
 V
CC
 
 2.5V 24FC512
2.5V 
 V
CC
 
 5.5V 24FC512
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 application, please 
consult the Total Endurance™ Model which can be obtained from Microchip’s web site at www.microchip.com.