93LC46/56/66
AC CHARACTERISTICS
AC CHARACTERISTICS
Param.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Note 1:
2:
3:
Sym
F
CLK
T
CKH
T
CKL
T
CSS
T
CSH
T
CSL
T
DIS
T
DIH
T
PD
T
CZ
T
SV
T
WC
T
EC
T
WL
—
Endurance
Characteristic
Clock frequency
Clock high time
Clock low time
Chip select setup time
Chip select hold time
Chip select low time
Data input setup time
Data input hold time
Data output delay time
Data output disable time
Status valid time
Program cycle time
V
CC
= +2.5V to +5.5V
Industrial (I): T
A
= -40°C to +85°C
Min
—
—
250
250
50
0
250
100
100
—
—
—
—
—
—
1M
Typ
—
—
—
—
—
—
—
—
—
—
—
—
4
8
16
—
Max
2
1
—
—
—
—
—
—
—
400
100
500
10
15
30
1M
Units
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ms
ms
Relative to CLK
Relative to CLK
CL = 100 pF
CL = 100 pf
CL = 100 pF
Erase/Write mode
ERAL mode (V
CC
=5V ±10%)
WRAL mode (V
CC
=5V ±10%)
Relative to CLK
Relative to CLK
Conditions
V
CC
≥
4.5V
V
CC
<
4.5V
cycles 25°C, V
CC
= 5.0V, Block
mode
This parameter is tested at T
A
= 25°C and F
CLK
= 1 MHz.
This parameter is periodically sampled and not 100% tested.
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.
FIGURE 1-1:
CS
V
IH
V
IL
V
IH
CLK
V
IL
SYNCHRONOUS DATA TIMING
4
2
3
5
7
V
IH
DI
V
IL
8
9
DO V
OH
(Read)
V
OL
DO V
OH
(Write)
V
OL
9
10
11
Status Valid
10
2004 Microchip Technology Inc.
DS21712B-page 3
MICROCHIP [ MICROCHIP TECHNOLOGY ]
