HIGH-SPEED
8K x 8 DUAL-PORT
STATIC RAM
IDT7005S/L
True Dual-Ported memory cells which allow simultaneous
High-speed access
Low-power operation
IDT7005 easily expands data bus width to 16 bits or more
BUSY L
BUSY R
Features
reads of the same memory location
– Military: 20/25/35/55/70ns (max.)
– Industrial: 35/55ns (max.)
– Commercial:15/17/20/25/35/55ns (max.)
– IDT7005S
Active: 750mW (typ.)
Standby: 5mW (typ.)
– IDT7005L
Active: 700mW (typ.)
Standby: 1mW (typ.)
using the Master/Slave select when cascading more than
one device
Functional Block Diagram
OE L
CE L
R/ W L
I/O 0L - I/O 7L
I/O
Control
(1,2)
M/ S = H for BUSY output flag on Master,
M/ S = L for BUSY input on Slave
Interrupt Flag
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, quad flatpack, PLCC, and a 64-pin
thin quad flatpack
Industrial temperature range (-40°C to +85°C) is available
for selected speeds
Green parts available, see ordering information
OE R
CE R
R/ W R
I/O 0R -I/O 7R
I/O
Control
(1,2)
A 12L
A 0L
Address
Decoder
MEMORY
ARRAY
Address
Decoder
A 12R
A 0R
13
13
INT L
NOTES:
SEM L
(2)
CE L
OE L
R/ W L
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
M/ S
CE R
OE R
R/ W R
SEM R
INT R (2)
2738 drw 01
1. (MASTER): BUSY is output; (SLAVE): BUSY is input.
2. BUSY outputs and INT outputs are non-tri-stated push-pull.
SEPTEMBER 2012
1
?2012 Integrated Device Technology, Inc.
DSC 2738/17
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