IDT7099S Datasheet, PDF (1/9 Pages) Integrated Device Technology – HIGH-SPEED 4K x 9 SYNCHRONOUS DUAL-PORT RAM

Integrated Device Technology, Inc.
HIGH-SPEED
4K x 9 SYNCHRONOUS
DUAL-PORT RAM
IDT7099S
FEATURES:
• High-speed clock-to-data output times
— Military: 20/25/30ns (max.)
— Commercial: 15/20/25ns (max.)
• Low-power operation
— IDT7099S
Active: 900 mW (typ.)
Standby: 50 mW (typ.)
• Architecture based on Dual-Port RAM cells
— Allows full simultaneous access from both ports
— Independent bit/byte Read and Write inputs for control
functions
• Synchronous operation
— 4ns setup to clock, 1ns hold on all control, data, and
address inputs
— Data input, address, and control registers
— Fast 15ns clock to data out
— 20ns cycle times, 50MHz operation
• Clock enable feature
• Guaranteed data output hold times
• Available in 68-pin PGA, 68-pin PLCC, and 80-pin TQFP
• Military product compliant to MIL-STD-883, Class B
• Industrial temperature range (–40°C to +85°C) is avail-
able, tested to military electrical specifications
DESCRIPTION:
The IDT7099 is a high-speed 4K x 9 bit synchronous Dual-
Port RAM. The memory array is based on Dual-Port memory
cells to allow simultaneous access from both ports. Registers
on control, data, and address inputs provide low set-up and
hold times. The timing latitude provided by this approach
allow systems to be designed with very short realized cycle
times. With an input data register, this device has been
optimized for applications having unidirectional data flow or
bi-directional data flow in bursts. Changing data direction from
reading to writing normally requires one dead cycle.
These Dual-Ports typically operate on only 900mW of
power at maximum high-speed clock-to-data output times as
fast as 15ns. An automatic power down feature, controlled
by CE, permits the on-chip circuitry of each port to enter a very
low standby power mode.
The IDT7099 is packaged in a 68-pin PGA, 68-pin PLCC,
and a 80-pin TQFP. Military grade product is manufactured in
compliance with the latest revision of MIL-STD-883, Class B,
making it ideally suited to military temperature applications
demanding the highest level of performance and reliability.
FUNCTIONAL BLOCK DIAGRAM
I/O8L
I/O0-7L
WRITE
LOGIC
MMYAAREERMRMRAOOAYRRYY
WRITE
LOGIC
SENSE
SENSE
AMPS _{DECODER DECODER} AMPS
I/O8R
I/O0-7R
BIT OEL
BYTE OEL
CLKL
CLKEN
REG
en
REG
en
W BIT R/ L
W BYTE R/ L
CEL
REG
Write
Control
Logic
A0L-A11L A0R-A11R
Write
Control
Logic
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.
6.23
REG
BIT OER
BYTE OER
CLKR
CLKENR
W BIT R/ R
W BYTE R/ R
CER
3007 drw 01
OCTOBER 1996
DSC-3007/3
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