M29W320ET, M29W320EB
Figure 14. Toggle and Alternative Toggle Bits Mechanism, Chip Enable Controlled
A0-A20
VALID ADDRESS
VALID ADDRESS
VALID ADDRESS
tAXEL
E
G
tELQV
tELQV
Alternative Toggle/
Toggle Bit
Alternative Toggle/
Toggle Bit
Data
Data
DQ2(1)/DQ6(2)
AI09350
Note: 1. The Toggle bit is output on DQ6.
2. The Alternative Toggle bit is output on DQ2.
Figure 15. Toggle and Alternative Toggle Bits Mechanism, Output Enable Controlled
A0-A20
G
VALID ADDRESS
VALID ADDRESS
VALID ADDRESS
tAXGL
E
tGLQV
tGLQV
Alternative Toggle/
Toggle Bit
Alternative Toggle/
Toggle Bit
DQ2(1)/DQ6(2)
Data
Data
AI09351
Note: 1. The Toggle bit is output on DQ6.
2. The Alternative Toggle bit is output on DQ2.
Table 15. Toggle and Alternative Toggle Bits AC Characteristics
M29W320E
Symbol
Alt
Parameter
Unit
70
10
10
90
10
10
t
Address Transition to Chip Enable Low
Address Transition to Output Enable Low
Min
Min
ns
ns
AXEL
t
AXGL
Note: t
and t
values are presented in Table 12., Read AC Characteristics.
ELQV
GLQV
27/46
STMICROELECTRONICS [ ST ]
