IDT71V2556S Integrated Device Technology, IDT71V2556S Datasheet - Page 7

• Manufacturer Part Number: IDT71V2556S
• Description: 128k X 36, 256k X 18 3.3v Synchronous Zbt Srams 2.5v I/o, Burst Counter Pipelined Outputs
• Manufacturer: Integrated Device Technology

Pin Configuration — 128K x 36, 119 BGA
Pin Configuration — 256K x 18, 119 BGA
NOTES:
1. J3, J5, and R5 do not have to be directly connected to V
2. G4 and A4 are reserved for future 8M and 16M respectively.
3. These pins are NC for the "S" version and the JTAG signal listed for the "SA" version.
4. TRST is offered as an optional JTAG reset if required in the application. If not needed, can be left floating and will internally be pulled to V
5. Pin T7 supports ZZ (sleep mode) on the latest die revision.
IDT71V2556, IDT71V2558, 128K x 36, 256K x 18, 3.3V Synchronous ZBT™ SRAMs
with 2.5V I/O, Burst Counter, and Pipelined Outputs
M
C
D
G
H
N
U
A
B
E
K
P
R
M
F
L
T
C
D
G
H
N
U
J
A
B
E
K
P
R
F
L
T
J
V
V
V
V
V
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
V
V
V
V
V
I/O
I/O
I/O
NC
NC
NC
NC
I/O
DDQ
DDQ
DDQ
DDQ
DDQ
NC
NC
NC
NC
NC
NC
NC
NC
DDQ
DDQ
DDQ
DDQ
DDQ
1
1
16
17
20
22
24
25
29
31
11
13
15
8
NC/TMS
NC/TMS
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
CE
I/O
V
I/O
I/O
I/O
CE2
NC
V
I/O
A
A
A
A
NC
NC
NC
NC
NC
A
A
A
2
DD
2
DD
10
6
7
P3
P4
5
18
19
21
23
26
27
28
30
6
7
P2
5
10
12
14
2
9
DD
(3)
(3)
as long as the input voltage is ≥ V
NC/TDI
NC/TDI
BW
BW
LBO
V
V
V
V
V
V
V
V
V
A
V
LBO
V
V
V
V
V
V
V
V
V
A
A
A
A
BW
A
A
A
3
SS
SS
SS
SS
SS
SS
SS
SS
DD(1)
10
3
SS
SS
SS
SS
SS
DD(1)
SS
SS
SS
SS
15
4
3
2
4
3
2
4
3
Top View
Top View
2
(3)
(3)
NC/TCK
ADV/LD
6.42
NC/TCK
ADV/LD
NC(2)
NC(2)
CEN
NC(2)
NC(2)
CLK
CEN
V
V
V
R/W
A
CLK
NC
NC
V
CE
R/W
V
V
CE
OE
NC
NC
NC
A
A
OE
A
A
4
DD
DD
DD
11
4
DD
DD
DD
7
1
0
1
0
1
1
(3)
(3)
NC/TDO
NC/TDO
BW
BW
V
V
V
V
V
V
V
V
V
A
A
BW
V
V
V
V
V
V
V
V
V
V
A
A
A
A
A
A
V
V
5
SS
SS
SS
SS
DD(1)
SS
SS
SS
SS
5
12
14
SS
SS
SS
SS
SS
DD(1)
SS
SS
SS
SS
13
14
8
9
DD(1)
DD(1)
8
9
1
2
1
(3)
(3)
IH
NC/TRST
.
NC/TRST
I/O
I/O
I/O
I/O
I/O
I/O
CE
V
A
A
I/O
I/O
I/O
I/O
I/O
A
NC
CE
V
A
A
I/O
I/O
I/O
I/O
A
A
NC
NC
NC
NC
NC
Commercial and Industrial Temperature Ranges
6
DD
16
15
13
6
16
17
DD
12
11
P2
P1
13
12
11
P1
2
9
6
4
3
2
2
6
4
2
1
(3,4)
(3,4)
V
V
V
V
V
I/O
I/O
I/O
V
V
V
V
V
I/O
I/O
I/O
I/O
4875 drw 13a
4875 drw 13b
NC
NC
I/O
NC
NC/ZZ
I/O
I/O
I/O
DDQ
DDQ
DDQ
DDQ
DDQ
NC
NC
NC
NC
NC
NC
I/O
NC/ZZ
NC
DDQ
DDQ
DDQ
DDQ
DDQ
7
7
15
14
10
8
7
5
1
7
5
3
0
0
(5)
(5)
,
,
DD.