M48T02-150PC1TR STMICROELECTRONICS [STMicroelectronics], M48T02-150PC1TR Datasheet - Page 7

• Manufacturer Part Number: M48T02-150PC1TR
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

READ Mode
The M48T02/12 is in the READ Mode whenever W
(WRITE Enable) is high and E (Chip Enable) is
low. The device architecture allows ripple-through
access of data from eight of 16,384 locations in the
static storage array. Thus, the unique address
specified by the 11 Address Inputs defines which
one of the 2,048 bytes of data is to be accessed.
Valid data will be available at the Data I/O pins
within Address Access time (t
address input signal is stable, providing that the E
and G access times are also satisfied. If the E and
G access times are not met, valid data will be
Figure 6. READ Mode AC Waveforms
Note: WRITE Enable (W) = High.
Table 7. READ Mode AC Characteristics
Note: 1. Valid for Ambient Operating Temperature: T
Symbol
t
t
t
t
t
t
t
t
t
GHQZ
GLQV
GLQX
EHQZ
AXQX
AVQV
ELQV
ELQX
AVAV
A0-A10
E
G
DQ0-DQ7
READ Cycle Time
Address Valid to Output Valid
Chip Enable Low to Output Valid
Output Enable Low to Output Valid
Chip Enable Low to Output Transition
Output Enable Low to Output Transition
Chip Enable High to Output Hi-Z
Output Enable High to Output Hi-Z
Address Transition to Output Transition
Parameter
AVQV
) after the last
tAVQV
tELQX
(1)
tGLQX
tELQV
A
= 0 to 70°C; V
tGLQV
tAVAV
VALID
CC
available after the latter of the Chip Enable Access
time (t
(t
The state of the eight three-state Data I/O signals
is controlled by E and G. If the outputs are activat-
ed before t
indeterminate state until t
puts are changed while E and G remain active,
output data will remain valid for Output Data Hold
time (t
Address Access.
= 4.75 to 5.5V or 4.5 to 5.5V (except where noted).
GLQV
Min
70
10
5
5
AXQX
).
ELQV
–70
AVQV
Max
) but will go indeterminate until the next
70
70
35
25
25
VALID
) or Output Enable Access time
M48T02/M48T12
, the data lines will be driven to an
Min
150
10
5
5
tGHQZ
–150
Max
150
150
75
35
35
AVQV
M48T02, M48T12
. If the Address In-
Min
200
10
5
5
–200
tAXQX
tEHQZ
AI01330
Max
200
200
80
40
40
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
7/19