HIGH-SPEED
8K x 9 DUAL-PORT
STATIC RAM
Features:
◆
◆
IDT7015S/L
◆
◆
True Dual-Ported memory cells which allow simultaneous
reads of the same memory location
High-speed access
– Commercial: 12/15/17/20/25/35ns (max.)
– Industrial: 20ns (max.)
– Military: 20/25/35ns (max.)
Low-power operation
– IDT7015S
Active: 750mW (typ.)
Standby: 5mW (typ.)
– IDT7015L
Active: 750mW (typ.)
Standby: 1mW (typ.)
IDT7015 easily expands data bus width to 18 bits or more
using the Master/Slave select when cascading more than
one device
◆
◆
◆
◆
◆
◆
◆
◆
◆
M/S = V
IH
for
BUSY
output flag on Master
M/S = V
IL
for
BUSY
input on Slave
Busy and Interrupt Flag
On-chip port arbitration logic
Full on-chip hardware support of semaphore signaling
between ports
Fully asynchronous operation from either port
TTL-compatible, single 5V (±10%) power supply
Available in ceramic 68-pin PGA, 68-pin PLCC, and an 80-
pin TQFP
Industrial temperature range (–40°C to +85°C) is available
for selected speeds
Green parts available, see ordering information
Functional Block Diagram
OE
L
CE
L
R/W
L
OE
R
CE
R
R/W
R
I/O
0L
- I/O
8L
I/O
Control
BUSY
L
A
12L
A
0L
(1,2)
I/O
Control
I/O
0R
-I/O
8R
BUSY
R
Address
Decoder
13
(1,2)
MEMORY
ARRAY
13
Address
Decoder
A
12R
A
0R
CE
L
OE
L
R/W
L
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
CE
R
OE
R
R/W
R
SEM
L
(2)
INT
L
NOTES:
1. In MASTER mode:
BUSY
is an output and is a push-pull driver
In SLAVE mode:
BUSY
is input.
2.
BUSY
outputs and
INT
outputs are non-tri-stated push-pull drivers.
M/S
2954 drw 01
SEM
R
(2)
INT
R
APRIL 2006
1
©2006 Integrated Device Technology, Inc.
DSC 2954/7
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
