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24AA256TEMS Datasheet(PDF) 4 Page - Microchip Technology

Part # 24AA256TEMS
Description  256K IC CMOS Serial EEPROM
Download  42 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

24AA256TEMS Datasheet(HTML) 4 Page - Microchip Technology

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24AA256/24LC256/24FC256
DS20001203T-page 4
 1998-2013 Microchip Technology Inc.
FIGURE 1-1:
BUS TIMING DATA
13
TAA
Output valid from clock
(Note 2)
3500
900
900
400
ns
1.7 V
 VCC  2.5V
2.5 V
 VCC  5.5V
1.7V
 VCC  2.5V 24FC256
2.5 V
 VCC  5.5V 24FC256
14
TBUF
Bus free time: Time the bus
must be free before a new
transmission can start
4700
1300
1300
500
ns
1.7V
 VCC  2.5V
2.5V
 VCC  5.5V
1.7V
 VCC  2.5V 24FC256
2.5V
 VCC  5.5V 24FC256
15
TOF
Output fall time from VIH
minimum to VIL maximum
CB
 100 pF
10 + 0.1CB
250
250
ns
All except, 24FC256 (Note 1)
16
TSP
Input filter spike suppression
(SDA and SCL pins)
50
ns
All except, 24FC256 (Notes 1
and 3)
17
TWC
Write cycle time (byte or
page)
—5
ms
18
Endurance
1,000,000
cycles Page mode, 25°C, 5.5V (Note 4)
AC CHARACTERISTICS (Continued)
Electrical Characteristics:
Industrial (I):
VCC = +1.7V to 5.5V
TA = -40°C to +85°C
Automotive (E):
VCC = +1.7V to 5.5V
TA = -40°C to +125°C
Param.
No.
Sym.
Characteristic
Min.
Max.
Units
Conditions
Note 1:
Not 100% tested. CB = 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 TSP and VHYS specifications are due to new Schmitt Trigger inputs, which provide improved
noise spike suppression. This eliminates the need for a TI 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.
(unprotected)
(protected)
SCL
SDA
IN
SDA
OUT
WP
5
7
6
16
3
2
89
13
D3
4
10
11
12
14


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