am49bds640ah Meet Spansion Inc., am49bds640ah Datasheet - Page 79
![no-image](/images/no-image-200.jpg)
am49bds640ah
Manufacturer Part Number
am49bds640ah
Description
Stacked Multichip Package Mcp , Flash Memory And Psram Cmos 1.8 Volt-only Simultaneous Read/write, Burst Mode 64 Megabit 4m ? 16-bit Flash Memory, And 16 Mbit 1m ? 16-bit Psram
Manufacturer
Meet Spansion Inc.
Datasheet
1.AM49BDS640AH.pdf
(84 pages)
- Current page: 79 of 84
- Download datasheet (2Mb)
PSRAM AC CHARACTERISTICS
December 5, 2003
Byte Select Disable to High-Z Output t
Output Hold from Address Change
Output Disable to High-Z Output
Output Enable to Low-Z Output
Chip Disable to High-Z Output
Output Enable to Valid Output
Address Valid to End of Write
Chip Enable to Low-Z output
Byte Select to Low-Z Output
Chip Enable to Valid Output
Chip Enable to End of Write
Data to Write Time Overlap
Byte Select to Valid Output
Byte Select to End of Write
Data Hold from Write Time
End Write to Low-Z Output
Write to High-Z Output
Address Access Time
Write Recovery Time
Address Setup Time
Write Pulse Width
Read Cycle Time
Write Cycle Time
Address Skew
Item
A D V A N C E
LBHZ
t
t
LBW
LBZ
Symbol
t
LB
t
t
t
t
t
t
t
t
t
WHZ
t
t
t
t
OHZ
t
t
t
t
OLZ
t
t
t
WC
CW
WP
WR
DW
OW
RC
CO
OE
OH
AW
DH
SK
AA
HZ
, t
AS
, t
LZ
, t
, t
UBW
UB
UBZ
UBHZ
Am49BDS640AH
I N F O R M A T I O N
Min.
70
10
10
70
70
70
70
55
25
70 at 1.8V
5
0
0
0
5
0
0
0
5
30000
Max.
10
70
70
15
70
20
20
20
20
Min.
80
10
80
80
80
80
60
25
80 at 1.7V
5
5
0
0
0
5
30000
Max.
10
80
80
20
80
20
20
20
20
Min.
85
10
10
85
85
85
85
65
25
5
0
0
0
5
0
0
0
5
85 at 1.65V
30000
Max.
10
85
85
25
85
20
20
20
20
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
77
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