Datasheet

Operation modes M48T02, M48T12
8/25 Doc ID 2410 Rev 9
The state of the eight three-state data I/O signals is controlled by E and G. If the outputs are
activated before t
AVQV
, the data lines will be driven to an indeterminate state until t
AVQV
. If
the address inputs are changed while E
and G remain active, output data will remain valid
for output data hold time (t
AXQX
) but will go indeterminate until the next address access.
Figure 4. READ mode AC waveforms
Note: WRITE enable (W
) = High.
Table 3. READ mode AC characteristics
Symbol Parameter
(1)
1. Valid for ambient operating temperature: T
A
= 0 to 70 °C; V
CC
= 4.75 to 5.5 V or 4.5 to 5.5 V (except where noted).
M48T02/M48T12
Unit–70 –150 –200
Min Max Min Max Min Max
t
AVAV
READ cycle time 70 150 200 ns
t
AVQV
Address valid to output valid 70 150 200 ns
t
ELQV
Chip enable low to output valid 70 150 200 ns
t
GLQV
Output enable low to output valid 35 75 80 ns
t
ELQX
Chip enable low to output transition 5 10 10 ns
t
GLQX
Output enable low to output transition 5 5 5 ns
t
EHQZ
Chip enable high to output Hi-Z 25 35 40 ns
t
GHQZ
Output enable high to output Hi-Z 25 35 40 ns
t
AXQX
Address transition to output transition 10 5 5 ns
AI01330
tAVAV
tAVQV tAXQX
tELQV
tELQX
tEHQZ
tGLQV
tGLQX
tGHQZ
VALID
A0-A10
E
G
DQ0-DQ7
VALID