IDT7015S Datasheet, PDF (1/20 Pages) Integrated Device Technology – HIGH-SPEED 8K x 9 DUAL-PORT STATIC RAM

Integrated Device Technology, Inc.
HIGH-SPEED
8K x 9 DUAL-PORT
STATIC RAM
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
FUNCTIONAL BLOCK DIAGRAM
• 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
OE_L
W^CEL
R/ _L
OE_R
W ^CER
R/ _R
I/O_0L- I/O_8L
BUSY_L(1,2)
A_12L
A_0L
I/O
Control
I/O
Control
Address
Decoder
13
CE_L
W^OEL
R/ _L
MEMORY
ARRAY
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
Address
Decoder
13
CE_R
W ^OER
R/ _R
SEM_L
(2)
M/S
INT_L
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.
6.12
I/O_0R-I/O_8R
BUSY_R ^(1,2)
A_12R
A_0R
SEMR
(2)
INT_R
2954 drw 01
OCTOBER 1996
DSC-2954/2
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