93LCS56 Datasheet, PDF (6/12 Pages) Microchip Technology – 2K/4K 2.5V Microwire Serial EEPROM with Software Write Protect

93LCS56/66
FIGURE 2-1: SYNCHRONOUS DATA TIMING
VIH
PRE
VIL
TPRES
PE ^VIH
VIL
TPES
VIH
CS
VIL
TCSS
TCKH
TCKL
VIH
CLK
VIL
VIH
DI
VIL
TDIS
DO ^VOH
(READ) _VOL
TSV
DO ^VOH
(PROGRAM)
VOL
TDIH
TPD
TPD
STATUS VALID
FIGURE 2-2: READ TIMING
CS
CLK
DI
1
1
0
A2 • • • A0
TPREH
TPEH
TCSH
TCZ
TCZ
TCSL
DO
TRI-STATE^®
0
D15 • • • D0 D15* • • • D0 D15* • • •
PRE = 0
* The memory automatically cycles to the next register.
PE = X
Tri-State is a registered trademark of National Semiconductor.
FIGURE 2-3: EWEN TIMING
PE
CS
TCSL
CLK
DI
DS11181D-page 6
1
0
0
1
1
X
•••
X
6 DON'T CARE BITS
Preliminary
PRE = 0
DO = TRI-STATE
© 1996 Microchip Technology Inc.