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M48T35-70MH6E View Datasheet(PDF) - STMicroelectronics

Part Name
Description
Manufacturer
M48T35-70MH6E
ST-Microelectronics
STMicroelectronics ST-Microelectronics
M48T35-70MH6E Datasheet PDF : 29 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
M48T35 M48T35Y
Operation modes
If the Address Inputs are changed while E and G remain active, output data will remain valid
for Output Data Hold time (tAXQX) but will go indeterminate until the next Address Access.
Figure 5. Read mode AC waveforms
A0-A14
tAVAV
VALID
tAVQV
tELQV
E
tAXQX
tEHQZ
tELQX
tGLQV
tGHQZ
G
DQ0-DQ7
tGLQX
VALID
Note:
WRITE Enable (W) = High.
AI00925
Table 3. Read mode AC characteristics
Symbol
Parameter(1)
M48T35/Y
Unit
Min
Max
tAVAV READ Cycle Time
70
ns
tAVQV Address Valid to Output Valid
70
ns
tELQV Chip Enable Low to Output Valid
70
ns
tGLQV
tELQX(2)
tGLQX(2)
tEHQZ(2)
tGHQZ(2)
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
35
ns
5
ns
5
ns
25
ns
25
ns
tAXQX Address Transition to Output Transition
10
ns
1. Valid for Ambient Operating Temperature: TA = 0 to 70 or –40 to 85°C; VCC = 4.75 to 5.5V or 4.5 to 5.5V (except where
noted).
2. CL = 5pF.
2.2
Write mode
The M48T35/Y is in the WRITE Mode whenever W and E are low. The start of a WRITE is
referenced from the latter occurring falling edge of W or E. A WRITE is terminated by the
earlier rising edge of W or E. The addresses must be held valid throughout the cycle. E or W
must return high for a minimum of tEHAX from Chip Enable or tWHAX from WRITE Enable
prior to the initiation of another READ or WRITE Cycle. Data-in must be valid tDVWH prior to
the end of WRITE and remain valid for tWHDX afterward. G should be kept high during
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