IDT7005S Datasheet, PDF (1/20 Pages) Integrated Device Technology – HIGH-SPEED 8K x 8 DUAL-PORT STATIC RAM

Integrated Device Technology, Inc.
HIGH-SPEED
8K x 8 DUAL-PORT
STATIC RAM
IDT7005S/L
FEATURES:
• True Dual-Ported memory cells which allow simulta-
neous access of the same memory location
• High-speed access
— Military: 20/25/35/55/70ns (max.)
— Commercial:15/17/20/25/35/55ns (max.)
• Low-power operation
— 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
• Busy and Interrupt 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
• 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
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
OEL
W^CEL
R/ L
OER
W^CER
R/ R
I/O0L- I/O7L
BUSYL(1,2)
A12L
A0L
NOTES:
1. (MASTER):
BUSY is output;
(SLAVE): BUSY
is input.
2. BUSY outputs
and INT outputs
are non-tri-stated
push-pull.
SEML
(2)
INTL
I/O
Control
I/O
Control
Address
Decoder
13
CEL
OEL
W R/ L
MEMORY
ARRAY
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
Address
Decoder
13
CER
W ^OER
R/ R
M/S
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.
6.06
I/O0R-I/O7R
BUSYR(1,2)
A12R
A0R
SEMR
(2)
INTR
2738 drw 01
OCTOBER 1996
DSC-2738/6
1