70V25L25PFI8 IDT, 70V25L25PFI8 Datasheet - Page 15

• Manufacturer Part Number: 70V25L25PFI8
• Description: SRAM 8Kx16, 3.3V DUAL- PORT RAM
• Manufacturer: IDT

Specifications of 70V25L25PFI8

• Part # Aliases: IDT70V25L25PFI8

NOTES:
1. D
2. All timing is the same for left and right port. Port “A” may be either left or right port. Port “B” is the opposite from port “A”.
3. This parameter is measured from R/W
4. If t
Timing Waveform of Semaphore Read after Write Timing, Either Side
NOTES:
1. CE = V
2. “DATA
Timing Waveform of Semaphore Write Contention
IDT70V35/34S/L (IDT70V25/24S/L)
High-Speed 3.3V 8/4K x 18 (8/4K x 16) Dual-Port Static RAM
OR
SPS
= D
is not satisfied, there is no guarantee which side will obtain the semaphore flag.
OUT
OL
IH
A
SEM
= V
or UB & LB = V
R/W
0
I/O
VALID” represents all I/O's (I/O
-A
OE
IL
, CE
2
0
R
= CE
SIDE
SIDE
IH
L
= V
for the duration of the above timing (both write and read cycle).
(2)
(2)
IH
, or both UB & LB = V
"B"
"A"
"A"
t
VALID ADDRESS
AS
or SEM
A
A
t
0
AW
-I/O
0"A"
0"B"
SEM
SEM
R/W
R/W
17
"A"
Write Cycle
-A
-A
for IDT70V35/34) and (I/O
t
going HIGH to R/W
t
EW
2"A"
2"B"
WP
"A"
"A"
"B"
"B"
IH
.
DATA
VALID
t
t
DW
WR
IN
t
DH
"B"
MATCH
or SEM
t
SWRD
6.42
0
15
-I/O
"B"
15
MATCH
going HIGH.
for IDT70V25/24) equal to the semaphore value.
t
VALID ADDRESS
SOP
t
SPS
Read Cycle
t
SAA
t
ACE
t
AOE
Industrial and Commercial Temperature Ranges
DATA
(1,3,4)
VALID
OUT
t
5624 drw 12
(2)
OH
,
5624 drw 11
(1)