HIGH-SPEED
8K x 9 DUAL-PORT
STATIC RAM
Integrated Device Technology, Inc.
IDT7015S/L
FEATURES:
• True Dual-Ported memory cells which allow simulta-
neous access of the same memory location
• High-speed access
— Military: 20/25/35ns (max.)
— Commercial: 12/15/17/20/25/35ns (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
= H for
BUSY
output flag on Master
M/
S
= L for
BUSY
input on Slave
• Interrupt and Busy Flags
• On-chip port arbitration logic
• Full on-chip hardware support of semaphore signaling
between ports
• Fully asynchronous operation from either port
• Devices are capable of withstanding greater than 2001V
electrostatic discharge
• 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 avail-
able, tested to military electrical specifications
DESCRIPTION:
The IDT7015 is a high-speed 8K x 9 Dual-Port Static
RAMs. The IDT7015 is designed to be used as stand-alone
Dual-Port RAM or as a combination MASTER/SLAVE Dual-
Port RAM for 18-bit-or-more word systems. Using the IDT
FUNCTIONAL BLOCK DIAGRAM
OE
L
R/
OE
R
CE
L
W
L
CE
R
R/
W
R
I/O
0L
- I/O
8L
I/O
Control
I/O
Control
I/O
0R
-I/O
8R
BUSY
L
(1,2)
BUSY
R
Address
Decoder
13
(1,2)
A
12L
A
0L
MEMORY
ARRAY
Address
Decoder
A
12R
A
0R
13
OE
L
R/
CE
L
W
L
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
CE
R
R/
OE
R
W
R
SEM
R
INT
R
SEM
L
INT
L
(2)
M/
S
(2)
2954 drw 01
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.
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1996 Integrated Device Technology, Inc.
For latest information contact IDT’s web site at www.idt.com or fax-on-demand at 408-492-8391.
OCTOBER 1996
DSC-2954/2
6.12
1
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
