Datasheet

2002-2012 Microchip Technology Inc. DS21712C-page 3
93LC46/56/66
AC CHARACTERISTICS
FIGURE 1-1: SYNCHRONOUS DATA TIMING
AC CHARACTERISTICS
VCC = +2.5V to +5.5V
Industrial (I): T
A = -40°C to +85°C
Param.
No.
Sym Characteristic Min Typ Max Units Conditions
1F
CLK Clock frequency
2
1
MHz
MHz
VCC 4.5V
V
CC 4.5V
2TCKH Clock high time 250 ns
3T
CKL Clock low time 250 ns
4TCSS Chip select setup time 50 ns Relative to CLK
5TCSH Chip select hold time 0 ns Relative to CLK
6T
CSL Chip select low time 250 ns
7TDIS Data input setup time 100 ns Relative to CLK
8TDIH Data input hold time 100 ns Relative to CLK
9T
PD Data output delay time 400 ns CL = 100 pF
10 TCZ Data output disable time 100 ns CL = 100 pf (Note 2)
11 TSV Status valid time 500 ns CL = 100 pF
12 T
WC Program cycle time 4 10 ms Erase/Write mode
13 TEC 8 15 ms ERAL mode (VCC=5V ±10%)
14 TWL 16 30 ms WRAL mode (VCC=5V ±10%)
15 Endurance 1M 1M cycles 25°C, V
CC = 5.0V, Block
mode (Note 3)
Note 1: This parameter is tested at T
A = 25°C and FCLK = 1 MHz.
2: This parameter is periodically sampled and not 100% tested.
3: 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.
CS
V
IH
VIL
VIH
VIL
VIH
VIL
VOH
VOL
VOH
VOL
CLK
DI
DO
(Read)
DO
(Write)
4
7
2
3
8
9
5
9
10
Status Valid
11
10