IDT7005S/L
HIGH-SPEED
8K x 8 DUAL-PORT
STATIC RAM
Integrated Device Technology, Inc.
• Busy and Interrupt Flags
• On-chip port arbitration logic
• Full on-chip hardware support of Semaphore signaling
between ports
FEATURES:
• True Dual-Ported memory cells which allow simulta-
neous access of the same memory location
• High-speed access
• Fully asynchronous operation from either port
• Devices are capable of withstanding greater than 2001V
electrostatic discharge
— Military: 20/25/35/55/70ns (max.)
— Commercial:15/17/20/25/35/55ns (max.)
• Low-power operation
• Battery backup operation—2V data retention
• TTL-compatible, single 5V (±10%) power supply
• Available in 68-pin PGA, 68-pin quad flatpack, 68-pin
PLCC, and a 64-pin TQFP
• Industrial temperature range (–40°C to +85°C) is avail-
able, tested to military electrical specifications
— IDT7005S
Active: 750mW (typ.)
Standby: 5mW (typ.)
— IDT7005L
Active: 750mW (typ.)
Standby: 1mW (typ.)
• IDT7005 easily expands data bus width to 16 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
DESCRIPTION:
The IDT7005 is a high-speed 8K x 8 Dual-Port Static RAM.
The IDT7005 is designed to be used as a stand-alone Dual-
Port RAM or as a combination MASTER/SLAVE Dual-Port
FUNCTIONAL BLOCK DIAGRAM
OER
OEL
CE
L
CE
R
R/WR
R/W
L
I/O0L- I/O7L
I/O0R-I/O7R
(1,2)
I/O
Control
I/O
Control
BUSY (1,2)
L
BUSY
R
A
12L
A
12R
0R
Address
Decoder
MEMORY
ARRAY
Address
Decoder
A
0L
A
13
13
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
NOTES:
CE
OE
R/W
L
CE
OE
R/W
R
1. (MASTER):
BUSY is output;
(SLAVE): BUSY
is input.
R
L
R
L
2. BUSY outputs
and INT outputs
are non-tri-stated
push-pull.
SEM
L
SEM
R
INT (2)
L
(2)
INTR
2738 drw 01
M/S
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
OCTOBER 1996
For latest information contact IDT’s web site at www.idt.com or fax-on-demand at 408-492-8391.
©1996 Integrated Device Technology, Inc.
DSC-2738/6
1
6.06
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
