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