IDT70V25L25PFGI8 IDT, Integrated Device Technology Inc, IDT70V25L25PFGI8 Datasheet - Page 6

• Manufacturer Part Number: IDT70V25L25PFGI8
• Description: IC SRAM 128KBIT 25NS 100TQFP
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT70V25L25PFGI8

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 128K (8K x 16)
• Speed: 25ns
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 70V25L25PFGI8

NOTE:
1. There are eight semaphore flags written to via I/O
Pin Names
Truth Table I: Non-Contention Read/Write Control
NOTES:
1. A
2. Outputs for IDT70V25/24 are I/O
3. Outputs for IDT70V25/24 are I/O
Truth Table II: Semaphore Read/Write Control
R/W
I/O
CE
OE
A
SEM
UB
LB
INT
BUSY
IDT70V35/34S/L (IDT70V25/24S/L)
High-Speed 3.3V 8/4K x 18 (8/4K x 16) Dual-Port Static RAM
0L
0L
L
L
L
are addressed by A
L
CE
L
CE
L
- A
X
X
H
L
L
L
L
L
L
X
X
H
H
L
L
L
0L
Left Port
- I/O
L
-A
12L
12L
17L
(1)
(2)
≠ A
R/W
R/W
X
X
X
L
L
L
H
H
H
0R
↑
↑
X
X
H
H
-A
M/S
V
V
DD
SS
12R
R/W
I/O
CE
OE
A
SEM
UB
LB
INT
BUSY
0
0R
-A
0R
R
for IDT70V35/34 and A
R
R
R
R
R
Right Port
- A
2
R
OE
.
- I/O
OE
R
X
X
X
X
X
L
L
L
H
X
X
X
X
L
L
12R
Inputs
17R
Inputs
(1)
(2)
0
8
(1)
x-I/O
x-I/O
UB
UB
X
X
H
L
H
L
L
H
L
X
H
X
H
X
L
7
15
x.
Chip Enable
Read/Write Enable
Output Enable
Data Input/Output
Semaphore Enable
Upper Byte Select
Lower Byte Select
Interrupt Flag
Busy Flag
Master or Slave Select
Power (3.3V)
Ground (0V)
Address
x.
0L
-A
0
LB
11L
LB
and read from all of the I/O's (I/O
X
X
H
H
L
L
H
L
L
X
H
X
H
X
L
≠ A
Names
0R
-A
SEM
(4)
(3)
SEM
11R
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
for IDT70V25/24.
5624 tbl 01
DATA
DATA
I/O
DATA
DATA
DATA
DATA
I/O
High-Z
High-Z
High-Z
High-Z
High-Z
DATA
DATA
9-17
____
____
6.42
9-17
OUT
OUT
OUT
OUT
IN
IN
6
(3)
IN
IN
(1)
Outputs
NOTES:
1. A
2. I/O
3. Upper Byte Select controls pins 9-17 for IDT70V35/34 and controls pins 8-15
4. Lower Byte Select controls pins 0-8 for IDT70V35/34 and controls pins 0-7
0
Outputs
-I/O
for IDT70V25/24.
for IDT70V25/24.
17
12
0
for IDT70V35/34) and (I/O
x - I/O
DATA
DATA
DATA
DATA
I/O
is a NC for IDT70V34 and for IDT70V24.
DATA
DATA
High-Z
High-Z
High-Z
High-Z
High-Z
I/O
DATA
DATA
____
____
0-8
0-8
OUT
OUT
OUT
OUT
(2)
IN
IN
(1)
15
IN
IN
x for IDT70V25/24.
(1)
Industrial and Commercial Temperature Ranges
Deselected: Power Down
Both Bytes Deselected
Read Upper Byte Only
Read Lower Byte Only
Read Both Bytes
Outputs Disabled
Write to Upper Byte Only
Write to Lower Byte Only
Write to Both Bytes
Read Data in Semaphore Flag
Read Data in Semaphore Flag
Not Allowed
Not Allowed
Write I/O
Write I/O
0
0
into Semaphore Flag
into Semaphore Flag
0
-I/O
15
for IDT70V25/24). These eight semaphores
Mode
Mode
5624 tbl 02
5624 tbl 03