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24LC256EST データシート(PDF) 3 Page - Microchip Technology

部品番号 24LC256EST
部品情報  256K IC CMOS Serial EEPROM
PDF  42 Pages
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メーカー  MICROCHIP [Microchip Technology]
ホームページ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

24LC256EST データシート(HTML) 3 Page - Microchip Technology

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 1998-2013 Microchip Technology Inc.
DS20001203T-page 3
24AA256/24LC256/24FC256
TABLE 1-2:
AC CHARACTERISTICS
AC CHARACTERISTICS
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
1FCLK
Clock frequency
—
—
—
—
100
400
400
1000
kHz
1.7V
 VCC  2.5V
2.5V
 VCC  5.5V
1.7V
 VCC  2.5V 24FC256
2.5V
 VCC  5.5V 24FC256
2THIGH
Clock high time
4000
600
600
500
—
—
—
—
ns
1.7V
 VCC  2.5V
2.5V
 VCC  5.5V
1.7V
 VCC  2.5V 24FC256
2.5V
 VCC  5.5V 24FC256
3TLOW
Clock low time
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
4TR
SDA and SCL rise time
(Note 1)
—
—
—
1000
300
300
ns
1.7V
 VCC  2.5V
2.5V
 VCC  5.5V
1.7V
 VCC  5.5V 24FC256
5TF
SDA and SCL fall time
(Note 1)
—
—
300
100
ns
All except, 24FC256
1.7V
 VCC  5.5V 24FC256
6THD:STA Start condition hold time
4000
600
600
250
—
—
—
—
ns
1.7V
 VCC  2.5V
2.5V
 VCC  5.5V
1.7V
 VCC  2.5V 24FC256
2.5V
 VCC  5.5V 24FC256
7TSU:STA Start condition setup time
4700
600
600
250
—
—
—
—
ns
1.7V
 VCC  2.5V
2.5V
 VCC  5.5V
1.7V
 VCC  2.5V 24FC256
2.5V
 VCC  5.5V 24FC256
8THD:DAT Data input hold time
0
—
ns
(Note 2)
9TSU:DAT Data input setup time
250
100
100
—
—
—
ns
1.7V
 VCC  2.5V
2.5V
 VCC  5.5V
1.7V
 VCC  5.5V 24FC256
10
TSU:STO Stop condition setup time
4000
600
600
250
—
—
—
—
ns
1.7V
 VCC  2.5V
2.5V
 VCC  5.5V
1.7V
 VCC  2.5V 24FC256
2.5V
 VCC  5.5V 24FC256
11
TSU:WP
WP setup time
4000
600
600
—
—
—
ns
1.7V
 VCC  2.5V
2.5V
 VCC  5.5V
1.7V
 VCC  5.5V 24FC256
12
THD:WP WP hold time
4700
1300
1300
—
—
—
ns
1.7V
 VCC  2.5V
2.5V
 VCC  5.5V
1.7V
 VCC  5.5V 24FC256
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.



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