參數(shù)資料
型號(hào): 25AA256T-EP
廠商: Microchip Technology Inc.
元件分類: EEPROM
英文描述: 256K SPI Bus Serial EEPROM
中文描述: 256K SPI總線串行EEPROM
文件頁數(shù): 20/26頁
文件大?。?/td> 367K
代理商: 25AA256T-EP
2003 Microchip Technology Inc.
Preliminary
DS21822C-page 3
25AA256/25LC256
TABLE 1-2:
AC CHARACTERISTICS
Industrial (I):
TA = -40°C to +85°C
VCC = 1.8V to 5.5V
Automotive (E): TA = -40°C to +125°C
VCC = 2.5V to 5.5V
Param.
No.
Sym.
Characteristic
Min.
Max.
Units
Test Conditions
1FCLK
Clock Frequency
10
5
3
MHz
4.5V
≤ Vcc ≤ 5.5V
2.5V
≤ Vcc < 4.5V
1.8V
≤ Vcc < 2.5V
2TCSS
CS Setup Time
50
100
150
ns
4.5V
≤ Vcc ≤ 5.5V
2.5V
≤ Vcc < 4.5V
1.8V
≤ Vcc < 2.5V
3TCSH
CS Hold Time
100
200
250
ns
4.5V
≤ Vcc ≤ 5.5V
2.5V
≤ Vcc < 4.5V
1.8V
≤ Vcc < 2.5V
4TCSD
CS Disable Time
50
ns
5
Tsu
Data Setup Time
10
20
30
ns
4.5V
≤ Vcc ≤ 5.5V
2.5V
≤ Vcc < 4.5V
1.8V
≤ Vcc < 2.5V
6THD
Data Hold Time
20
40
50
ns
4.5V
≤ Vcc ≤ 5.5V
2.5V
≤ Vcc < 4.5V
1.8V
≤ Vcc < 2.5V
7TR
CLK Rise Time
2
s
8TF
CLK Fall Time
2
s
9THI
Clock High Time
50
100
150
ns
4.5V
≤ Vcc ≤ 5.5V
2.5V
≤ Vcc < 4.5V
1.8V
≤ Vcc < 2.5V
10
TLO
Clock Low Time
50
100
150
ns
4.5V
≤ Vcc ≤ 5.5V
2.5V
≤ Vcc < 4.5V
1.8V
≤ Vcc < 2.5V
11
TCLD
Clock Delay Time
50
ns
12
TCLE
Clock Enable Time
50
ns
13
TV
Output Valid from Clock
Low
50
100
160
ns
4.5V
≤ Vcc ≤ 5.5V
2.5V
≤ Vcc < 4.5V
1.8V
≤ Vcc < 2.5V
14
THO
Output Hold Time
0
ns
15
TDIS
Output Disable Time
40
80
160
ns
4.5V
≤ Vcc ≤ 5.5V(Note 1)
2.5V
≤ Vcc ≤ 4.5V(Note 1)
1.8V
≤ Vcc ≤ 2.5V(Note 1)
16
THS
HOLD Setup Time
20
40
80
ns
4.5V
≤ Vcc ≤ 5.5V
2.5V
≤ Vcc < 4.5V
1.8V
≤ Vcc < 2.5V
Note 1: This parameter is periodically sampled and not 100% tested.
2: TWC 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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