參數(shù)資料
型號(hào): 25LC256T-ISN
廠商: Microchip Technology Inc.
元件分類(lèi): EEPROM
英文描述: 256K SPI Bus Serial EEPROM
中文描述: 256K SPI總線串行EEPROM
文件頁(yè)數(shù): 3/26頁(yè)
文件大?。?/td> 367K
代理商: 25LC256T-ISN
2003 Microchip Technology Inc.
Preliminary
DS21822C-page 3
25AA256/25LC256
TABLE 1-2:
AC CHARACTERISTICS
AC CHARACTERISTICS
Industrial (I):
Automotive (E): T
A
= -40°C to +125°C
T
A
= -40°C to +85°C
V
CC
= 1.8V to 5.5V
V
CC
= 2.5V to 5.5V
Param.
No.
Sym.
Characteristic
Min.
Max.
Units
Test Conditions
1
F
CLK
Clock Frequency
10
5
3
MHz
MHz
MHz
4.5V
Vcc
5.5V
2.5V
Vcc
<
4.5V
1.8V
Vcc
<
2.5V
4.5V
Vcc
5.5V
2.5V
Vcc
<
4.5V
1.8V
Vcc
<
2.5V
4.5V
Vcc
5.5V
2.5V
Vcc
<
4.5V
1.8V
Vcc
<
2.5V
2
T
CSS
CS Setup Time
50
100
150
ns
ns
ns
3
T
CSH
CS Hold Time
100
200
250
ns
ns
ns
4
T
CSD
CS Disable Time
50
ns
5
Tsu
Data Setup Time
10
20
30
ns
ns
ns
4.5V
Vcc
5.5V
2.5V
Vcc
<
4.5V
1.8V
Vcc
<
2.5V
4.5V
Vcc
5.5V
2.5V
Vcc
<
4.5V
1.8V
Vcc
<
2.5V
6
T
HD
Data Hold Time
20
40
50
ns
ns
ns
7
T
R
CLK Rise Time
2
μ
s
μ
s
(Note 1)
8
T
F
CLK Fall Time
2
(Note 1)
9
T
HI
Clock High Time
50
100
150
ns
ns
ns
4.5V
Vcc
5.5V
2.5V
Vcc
<
4.5V
1.8V
Vcc
<
2.5V
4.5V
Vcc
5.5V
2.5V
Vcc
<
4.5V
1.8V
Vcc
<
2.5V
10
T
LO
Clock Low Time
50
100
150
ns
ns
ns
11
T
CLD
Clock Delay Time
50
ns
12
T
CLE
Clock Enable Time
50
ns
13
T
V
Output Valid from Clock
Low
50
100
160
ns
ns
ns
4.5V
Vcc
5.5V
2.5V
Vcc
<
4.5V
1.8V
Vcc
<
2.5V
14
T
HO
Output Hold Time
0
ns
(Note 1)
15
T
DIS
Output Disable Time
40
80
160
ns
ns
ns
4.5V
Vcc
5.5V
(Note 1)
2.5V
Vcc
4.5V
(Note 1)
1.8V
Vcc
2.5V
(Note 1)
4.5V
Vcc
5.5V
2.5V
Vcc
<
4.5V
1.8V
Vcc
<
2.5V
16
T
HS
HOLD Setup Time
20
40
80
ns
ns
ns
Note 1:
This parameter is periodically sampled and not 100% tested.
2:
T
WC
begins on the rising edge of CS after a valid write sequence and ends when the internal write cycle is
complete.
3:
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 our web site:
www.microchip.com.
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