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93LC46_12 Datasheet, PDF (3/20 Pages) Microchip Technology – 1K/2K/4K 2.5V Microwire Serial EEPROM | |||
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93LC46/56/66
AC CHARACTERISTICS
AC CHARACTERISTICS
VCC = +2.5V to +5.5V
Industrial (I): TA = -40°C to +85°C
Param.
No.
Sym
Characteristic
Min
Typ Max Units
Conditions
1
FCLK
Clock frequency
â
â
2
MHz VCC ï³ 4.5V
â
â
1
MHz VCC ï¼ 4.5V
2
TCKH
Clock high time
250
â
â
ns
3
TCKL
Clock low time
250
â
â
ns
4
TCSS
Chip select setup time
50
â
â
ns Relative to CLK
5
TCSH
Chip select hold time
0
â
â
ns Relative to CLK
6
TCSL
Chip select low time
250
â
â
ns
7
TDIS
Data input setup time
100
â
â
ns Relative to CLK
8
TDIH
Data input hold time
100
â
â
ns Relative to CLK
9
TPD
Data output delay time
â
â
400
ns CL = 100 pF
10
TCZ
Data output disable time
â
â
100
ns CL = 100 pf (Note 2)
11
TSV
Status valid time
12
TWC
Program cycle time
13
TEC
14
TWL
15
â
Endurance
â
â
500
ns CL = 100 pF
â
4
10
ms Erase/Write mode
â
8
15
ms ERAL mode (VCC=5V ±10%)
â
16
30
ms WRAL mode (VCC=5V ±10%)
1M
â
1M cycles 25°C, VCC = 5.0V, Block
mode (Note 3)
Note 1:
2:
3:
This parameter is tested at TA = 25°C and FCLK = 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 Microchipâs web site
at: www.microchip.com.
FIGURE 1-1:
SYNCHRONOUS DATA TIMING
CS VIH
VIL
VIH
CLK
VIL
VIH
DI
VIL
DO VOH
(Read) VOL
DO VOH
(Write) VOL
4
2
7
8
9
11
3
9
Status Valid
5
10
10
ï£ 2002-2012 Microchip Technology Inc.
DS21712C-page 3
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