Datasheet

93AA56A/B/C, 93LC56A/B/C, 93C56A/B/C
DS21794B-page 4  2003 Microchip Technology Inc.
FIGURE 1-1: SYNCHRONOUS DATA TIMING
TABLE 1-3: INSTRUCTION SET FOR X 16 ORGANIZATION (93XX56B OR 93XX56C WITH ORG = 1)
TABLE 1-4: INSTRUCTION SET FOR X 8 ORGANIZATION (93XX56A OR 93XX56C WITH ORG = 0)
Instruction SB Opcode Address Data In Data Out Req. CLK Cycles
ERASE 1 11 X A6 A5 A4 A3 A2 A1 A0 — (RDY/BSY)11
ERAL 1 00 10XXXXXX — (RDY/BSY
)11
EWDS 1 00 00XXXXXX — HIGH-Z 11
EWEN 1 00 11XXXXXX — HIGH-Z 11
READ 1 10 X A6 A5 A4 A3 A2 A1 A0 — D15 – D0 27
WRITE 1 01 X A6 A5 A4 A3 A2 A1 A0 D15 – D0 (RDY/BSY)27
WRAL 1 00 01XXXXXXD15 – D0(RDY/BSY
)27
Instruction SB Opcode Address Data In Data Out
Req. CLK
Cycles
ERASE 1 11 X A7 A6 A5 A4 A3 A2 A1 A0 — (RDY/BSY
)12
ERAL 1 00 10XXXXXXX — (RDY/BSY
)12
EWDS 1 00 00XXXXXXX — HIGH-Z 12
EWEN 1 00 11XXXXXXX — HIGH-Z 12
READ 1 10 X A7 A6 A5 A4 A3 A2 A1 A0 — D7 – D0 20
WRITE 1 01 X A7 A6 A5 A4 A3 A2 A1 A0 D7 – D0 (RDY/BSY)20
WRAL 1 00 0 1 X X X X X X X D7 – D0 (RDY/BSY
)20
CS
V
IH
VIL
VIH
VIL
VIH
VIL
VOH
VOL
VOH
VOL
CLK
DI
DO
(READ)
DO
(PROGRAM)
T
CSS
TDIS
TCKH
TCKL
TDIH
TPD
TCSH
TPD
TCZ
STATUS VALID
TSV
TCZ
Note: TSV is relative to CS.