IDT7026S Datasheet, PDF (1/18 Pages) Integrated Device Technology – HIGH-SPEED 16K x 16 DUAL-PORT STATIC RAM

Integrated Device Technology, Inc.
HIGH-SPEED
16K x 16 DUAL-PORT
STATIC RAM
IDT7026S/L
FEATURES:
• True Dual-Ported memory cells which allow simulta-
neous access of the same memory location
• High-speed access
— Military: 25/35/55ns (max.)
— Commercial: 20/25/35/55ns (max.)
• Low-power operation
— IDT7026S
Active: 750mW (typ.)
Standby: 5mW (typ.)
— IDT7026L
Active: 750mW (typ.)
Standby: 1mW (typ.)
• Separate upper-byte and lower-byte control for
multiplexed bus compatibility
• IDT7026 easily expands data bus width to 32 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
• 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 84-pin PGA and 84-pin PLCC
• Industrial temperature range (–40°C to +85°C) is avail-
able, tested to military electrical specifications
FUNCTIONAL BLOCK DIAGRAM
R/WL
UBL
R/ WR
UBR
LBL
LBR
CEL
CER
OEL
OER
I/O8L-I/O 15L
I/O0L-I/O 7L
BUSYL(1,2)
A13L
A0L
I/O
Control
I/O
Control
Address
Decoder
14
CEL
MEMORY
ARRAY
ARBITRATION
SEMAPHORE
LOGIC
Address
Decoder
14
CER
SEML
M/S
NOTES:
1. (MASTER): BUSY is output; (SLAVE): BUSY is input.
2. BUSY outputs are non-tri-stated push-pull.
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.
6.17
I/O8R-I/O 15R
I/O0R-I/O 7R
BUSY
(1,2)
R
A13R
A0R
SEMR
2939 drw 01
OCTOBER 1996
DSC 2939/3
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