Datasheet
2010 Microchip Technology Inc. DS21836H-page 3
25AA1024
TABLE 1-2: AC CHARACTERISTICS
AC CHARACTERISTICS
Industrial (I)*: T
A = 0°C to +85°C VCC = 1.8V to 5.5V
Industrial (I): T
A = -40°C to +85°C VCC = 2.0V to 5.5V
*Limited industrial temp range.
Param.
No.
Sym. Characteristic Min. Max. Units Conditions
1F
CLK Clock frequency —
—
—
20
10
2
MHz
MHz
MHz
4.5 VCC 5.5
2.5 V
CC 5.5
1.8 V
CC <2.5 at 0°C to +85°C
2.0 V
CC <2.5 at -40°C to +85°C
2T
CSS CS setup time 25
50
250
—
—
—
ns
ns
ns
4.5 VCC 5.5
2.5 V
CC 5.5
1.8 V
CC <2.5 at 0°C to +85°C
2.0 V
CC <2.5 at -40°C to +85°C
3T
CSH CS hold time 50
100
500
—
—
—
ns
ns
ns
4.5 VCC 5.5
2.5 V
CC 5.5
1.8 V
CC <2.5 at 0°C to +85°C
2.0 V
CC <2.5 at -40°C to +85°C
(Note 3)
4T
CSD CS disable time 50 — ns —
5 Tsu Data setup time 5
10
50
—
—
—
ns
ns
ns
4.5 V
CC 5.5
2.5 V
CC 5.5
1.8 V
CC <2.5 at 0°C to +85°C
2.0 V
CC <2.5 at -40°C to +85°C
6THD Data hold time 10
20
100
—
—
—
ns
ns
ns
4.5 VCC 5.5
2.5 V
CC 5.5
1.8 V
CC <2.5 at 0°C to +85°C
2.0 V
CC <2.5 at -40°C to +85°C
7TR CLK rise time — 20 ns (Note 1)
8T
F CLK fall time — 20 ns (Note 1)
9THI Clock high time 25
50
250
—
—
—
ns
ns
ns
4.5 VCC 5.5
2.5 V
CC 5.5
1.8 V
CC <2.5 at 0°C to +85°C
2.0 V
CC <2.5 at -40°C to +85°C
10 TLO Clock low time 25
50
250
—
—
ns
ns
ns
4.5 VCC 5.5
2.5 V
CC 5.5
1.8 V
CC <2.5 at 0°C to +85°C
2.0 V
CC <2.5 at -40°C to +85°C
11 T
CLD Clock delay time 50 — ns —
12 TCLE Clock enable time 50 — ns —
13 TV Output valid from clock
low
—
—
—
25
50
250
ns
ns
ns
4.5 VCC 5.5
2.8 V
CC 5.5
1.8 V
CC <2.5 at 0°C to +85°C
2.0 V
CC <2.5 at -40°C to +85°C
14 T
HO Output hold time 0 — ns (Note 1)
Note 1: This parameter is periodically sampled and not 100% tested.
2: This parameter is not tested but established by characterization and qualification. 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: Includes T
HI time.