Datasheet
2010-2011 Microchip Technology Inc. Preliminary DS22237C-page 3
25A512
TABLE 1-2: AC CHARACTERISTICS
AC CHARACTERISTICS Industrial (I): TA = -40°C to +85°C VCC = 1.7V to 3.0V
Param.
No.
Sym. Characteristic Min. Max. Units Conditions
1FCLK Clock frequency —
—
10
2
MHz
MHz
2.0V VCC < 3.0V
1.7V V
CC < 2.0V
2T
CSS CS setup time 50
250
—
—
ns
ns
2.0V V
CC < 3.0V
1.7V V
CC < 2.0V
3T
CSH CS hold time 100
500
—
—
ns
ns
2.0V V
CC < 3.0V(Note 3)
1.7V V
CC < 2.0V(Note 3)
4T
CSD CS disable time 50 — ns —
5 Tsu Data setup time 10
50
—
—
ns
ns
2.0V V
CC < 3.0V
1.7V V
CC < 2.0V
6THD Data hold time 20
100
—
—
ns
ns
2.0V VCC < 3.0V
1.7V V
CC < 2.0V
7T
R CLK rise time — 20 ns (Note 1)
8TF CLK fall time — 20 ns (Note 1)
9T
HI Clock high time 50
250
—
—
ns
ns
2.0V VCC < 3.0V
1.7V V
CC < 2.0V
10 TLO Clock low time 50
250
—
—
ns
ns
2.0V VCC < 3.0V
1.7V V
CC < 2.0V
11 TCLD Clock delay time 50 — ns —
12 TCLE Clock enable time 50 — ns —
13 T
V Output valid from clock
low
—
—
50
250
ns
ns
2.0V VCC < 3.0V
1.7V V
CC < 2.0V
14 THO Output hold time 0 — ns (Note 1)
15 T
DIS Output disable time —
—
50
250
ns
ns
2.0V VCC < 3.0V(Note 1)
1.7V V
CC < 2.0V(Note 1)
16 T
HS HOLD setup time 20
100
—
—
ns
ns
2.0V V
CC < 3.0V
1.7V V
CC < 2.0V
17 T
HH HOLD hold time 20
100
—
—
ns
ns
2.0V VCC < 3.0V
1.7V V
CC < 2.0V
18 T
HZ HOLD low to output
High-Z
30
150
—
—
ns
ns
2.0V V
CC < 3.0V(Note 1)
1.7V V
CC < 2.0V(Note 1)
19 T
HV HOLD high to output
valid
30
150
—
—
ns
ns
2.0V V
CC < 3.0V
1.7V V
CC < 2.0V
20 T
REL CS High to Standby
mode
—100s
21 T
PD CS High to Deep power-
down
—100s
22 T
CE Chip erase cycle time — 10 ms
23 T
SE Sector erase cycle time — 10 ms
24 TWC Internal write cycle time — 5 ms Page mode and Page Erase
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.