25AA640A(2008) 查看數據表（PDF） - Microchip Technology
零件编号
产品描述 (功能)
生产厂家
25AA640A Datasheet PDF : 30 Pages
| |||
25AA640A/25LC640A
TABLE 1-2: AC CHARACTERISTICS
AC CHARACTERISTICS
Industrial (I): TA = -40°C to +85°C
Automotive (E): TA = -40°C to +125°C
VCC = 1.8V to 5.5V
VCC = 2.5V to 5.5V
Param.
No.
Sym.
Characteristic
Min.
Max. Units
Test Conditions
1
FCLK Clock frequency
2
TCSS CS setup time
3
TCSH CS hold time
4
TCSD CS disable time
5
Tsu Data setup time
6
THD Data hold time
—
10
MHz 4.5V ≤ Vcc ≤ 5.5V
—
5
MHz 2.5V ≤ Vcc < 4.5V
—
3
MHz 1.8V ≤ Vcc < 2.5V
50
—
ns 4.5V ≤ Vcc ≤ 5.5V
100
—
ns 2.5V ≤ Vcc < 4.5V
150
—
ns 1.8V ≤ Vcc < 2.5V
100
—
ns 4.5V ≤ Vcc ≤ 5.5V
200
—
ns 2.5V ≤ Vcc < 4.5V
250
—
ns 1.8V ≤ Vcc < 2.5V
50
—
ns —
10
—
ns 4.5V ≤ Vcc ≤ 5.5V
20
—
ns 2.5V ≤ Vcc < 4.5V
30
—
ns 1.8V ≤ Vcc < 2.5V
20
—
ns 4.5V ≤ Vcc ≤ 5.5V
40
—
ns 2.5V ≤ Vcc < 4.5V
50
—
ns 1.8V ≤ Vcc < 2.5V
7
TR CLK rise time
8
TF CLK fall time
9
THI Clock high time
10
TLO Clock low time
—
100
ns (Note 1)
—
100
ns (Note 1)
50
—
ns 4.5V ≤ Vcc ≤ 5.5V
100
—
ns 2.5V ≤ Vcc < 4.5V
150
—
ns 1.8V ≤ Vcc < 2.5V
50
—
ns 4.5V ≤ Vcc ≤ 5.5V
100
—
ns 2.5V ≤ Vcc < 4.5V
150
—
ns 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
—
50
ns 4.5V ≤ Vcc ≤ 5.5V
low
—
100
ns 2.5V ≤ Vcc < 4.5V
—
160
ns 1.8V ≤ Vcc < 2.5V
14
THO Output hold time
0
—
ns (Note 1)
15
TDIS Output disable time
—
40
ns 4.5V ≤ Vcc ≤ 5.5V(Note 1)
—
80
ns 2.5V ≤ Vcc ≤ 4.5V(Note 1)
—
160
ns 1.8V ≤ Vcc ≤ 2.5V(Note 1)
16
THS HOLD setup time
20
—
ns 4.5V ≤ Vcc ≤ 5.5V
40
—
ns 2.5V ≤ Vcc < 4.5V
80
—
ns 1.8V ≤ Vcc < 2.5V
Note 1: This parameter is periodically sampled and not 100% tested.
2: 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.
3: TWC begins on the rising edge of CS after a valid write sequence and ends when the internal write cycle
is complete.
© 2008 Microchip Technology Inc.
DS21830D-page 3
Share Link: 