AM50DL128BG70I Spansion Inc., AM50DL128BG70I Datasheet - Page 57
AM50DL128BG70I
Manufacturer Part Number
AM50DL128BG70I
Description
Manufacturer
Spansion Inc.
Datasheet
1.AM50DL128BG70I.pdf
(64 pages)
Specifications of AM50DL128BG70I
Operating Supply Voltage (max)
3.3V
Operating Temperature (max)
85C
Mounting
Surface Mount
Lead Free Status / RoHS Status
Not Compliant
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pSRAM AC CHARACTERISTICS
Write Cycle
Notes:
1. If the device is using the I/Os to output data, input signals of reverse polarity must not be applied.
2. If OE# is high during the write cycle, the outputs will remain at high impedance.
3. If CE#1s, LB# or UB# goes low at the same time or after WE# goes low, the outputs will remain at high impedance.
4. If CE#1s, LB# or UB# goes high at the same time or before WE# goes high, the outputs will remain at high impedance.
56
DQ15 to DQO
DQ15 to DQ0
Parameter
Addresses
Symbol
A20 to A0
LB#, UB#
t
t
t
t
t
t
t
ODW
OEW
t
t
t
t
WC
WP
CW
BW
WR
AS
DS
DH
CH
CE#1s
D
CE2s
WE#
OUT
D
IN
Description
Write Cycle Time
Write Pulse Time
Chip Enable to End of Write
Data Byte Control to End of Write
Address Setup Time
Write Recovery Time
WE# Low to Write to Output High-Z
WE# High to Write to Output Active
Data Set-up Time
Data Hold from Write Time
CE2 Hold Time
(Note 1)
(Note 3)
t
CH
Figure 31. Pseudo SRAM Write Cycle—WE# Control
t
AS
P R E L I M I N A R Y
t
ODW
Am50DL128BG
t
CW
t
BW
t
WC
t
WP
Max
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
High-Z
Valid Data In
t
DS
70
70
50
60
60
t
OEW
t
DH
t
Speed
WR
300
20
30
0
0
0
0
85
85
60
70
70
(Note 4)
January 8, 2003
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
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