IDT70V28L Integrated Device Technology, IDT70V28L Datasheet - Page 7

• Manufacturer Part Number: IDT70V28L
• Description: High-speed 3.3v 64k X 16 Dual-port Static Ram
• Manufacturer: Integrated Device Technology

NOTES:
1. Transition is measured 0mV from Low or High-impedance voltage with Output Test Load (Figure 2).
2. This parameter is guaranted by device characterization, but is not production tested.
3. To access RAM, CE= V
4. The specification for t
READ CYCLE
t
t
t
t
t
t
t
t
t
t
t
t
WRITE CYCLE
t
t
t
t
t
t
t
t
t
t
t
t
t
RC
AA
ACE
ABE
AOE
OH
LZ
HZ
PU
PD
SOP
SAA
WC
EW
AW
AS
WP
WR
DW
HZ
DH
WZ
OW
SWRD
SPS
IDT70V28L
High-Speed 3.3V 64K x 16 Dual-Port Static RAM
temperature, the actual t
Symbol
Symbol
Read Cycle Time
Address Access Time
Chip Enable Access Time
Byte Enable Access Time
Output Enable Access Time
Output Hold from Address Change
Output Low-Z Time
Output High-Z Time
Chip Enable to Power Up Time
Chip Disable to Power Down Time
Semapho re Flag Update Pulse (OE or SEM)
Semaphore Address Access Time
Chip Enable to End-of-Write
Data Valid to End-of-Write
Output High-Z Time
Data Hold Time
Output Active from End-of-Write
Write Cycle Time
Address Valid to End-of-Write
Address Set-up Time
Write Pulse Width
Write Recovery Time
Write Enable to Output in High-Z
SEM Flag Write to Read Time
SEM Flag Contention Window
DH
IL
must be met by the device supplying write data to the RAM under all operating conditions. Although t
DH
and SEM = V
will always be smaller than the actual t
(4)
(1,2)
(1,2)
(1,2)
(3)
IH
(3)
(3)
. To access semaphore, CE = V
(3)
(2)
(1,2,4)
(1,2)
(2)
Parameter
Parameter
OW
.
IH
and SEM = V
7
IL
. Either condition must be valid for the entire t
Industrial and Commercial Temperature Ranges
Min.
Min.
____
____
____
____
____
____
____
15
10
____
____
15
12
12
12
10
Com'l Only
3
3
0
Com'l Only
0
0
0
0
5
5
70V28L15
70V28L15
DH
and t
Max.
Max.
____
____
____
____
____
15
15
15
10
10
15
15
____
____
____
____
____
____
____
____
____
____
____
10
10
OW
EW
values will vary over voltage and
Min.
time.
Min.
____
____
____
____
____
____
____
20
10
____
____
20
15
15
15
15
3
3
0
0
0
0
0
5
5
70V28L20
70V28L20
Com'l
& Ind
Com'l
& Ind
Max.
Max.
____
____
____
____
____
20
20
20
12
10
20
20
____
____
____
____
____
____
____
____
____
____
____
10
10
4849 tbl 12
4849 tbl 13
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns