6.42
IDT70P264/254/244L Datasheet
Low Power 1.8V 16K/8K/4K x 16 Dual-Port Static RAM Industrial Temperature Range
2
Description
The IDT70P264/254/244 is a very low power 16K/8K/4K x 16
Dual-Port Static RAM. The IDT70P264/254/244 is designed to be used
as a stand-alone 256/128/64K-bit Dual-Port SRAM.
This device provides two independent ports with separate control,
address, and I/O pins that permit independent, asynchronous access for
reads or writes to any location in memory. An automatic power down
feature controlled by CE permits the on-chip circuitry of each port to enter
a very low standby power mode.
Fabricated using IDT’s CMOS high-performance technology,
these devices typically operate on only 27mW of power.
The IDT70P264/254/244 is packaged in a 81 ball 0.5mm- pitch Ball
Grid Array. The package is a 1mm thick and designed to fit in wireless
handset applications.
Pin Configurations
70P264/254/244BY
BY-81
81-Ball 0.5mm Pitch BGA
Top View
123456789
123456789
A
2R
A
5R
A
11R
CE
R
V
SS
I/O
14R
I/O
12R
I/O
10R
I/O
8R
I/O
7R
V
SS
I/O
11R
I/O
13R
A
13R
A
12R
A
9R
A
7R
A
1R
A
0R
A
6R
A
8R
A
10R
R/W
R
I/O
15R
V
DD
I/O
9R
I/O
6R
I/O
3R
I/O
4R
I/O
2R
I/O
5R
OE
R
INT
R
A
4R
A
3R
UB
R
V
SS
LB
L
INT
L
LB
R
V
DD
I/O
13L
I/O
15L
I/O
0R
I/O
1R
I/O
14L
V
DDQL
I/O
12L
I/O
5L
I/O
3L
A
3L
A
2L
A
4L
UB
L
A
0L
A
6L
A
1L
A
11L
A
12L
A
8L
A
9L
A
5L
A
7L
A
10L
A
13L
R/W
L
I/O
1L
V
SS
CE
L
OE
L
I/O
4L
I/O
0L
I/O
2L
V
SS
I/O
10L
I/O
11L
I/O
9L
I/O
7L
I/O
6L
V
DDQL
I/O
8L
7148 drw 0
(1)
(1)
(1)
(1)
NOTE:
1. A
13X is a NC for IDT70P254. A13X and A12X are NC for IDT70P244.
