HIGH SPEED 36K (4K X 9)
SYNCHRONOUS
DUAL-PORT RAM
Features
x
IDT70914S
x
x
x
High-speed clock-to-data output times
鈥?Military: 20/25ns (max.)
鈥?Commercial: 12/15/20ns (max.)
Low-power operation
鈥?IDT70914S
Active: 850 mW (typ.)
Standby: 50 mW (typ.)
Architecture based on Dual-Port RAM cells
鈥?Allows full simultaneous access from both ports
Synchronous operation
鈥?4ns setup to clock, 1ns hold on all control, data, and address
inputs
鈥?Data input, address, and control registers
x
x
x
x
x
x
x
鈥?Fast 12ns clock to data out
鈥?Self-timed write allows fast cycle times
鈥?16ns cycle times, 60MHz operation
TTL-compatible, single 5V (+ 10%) power supply
Clock Enable feature
Guaranteed data output hold times
Available in 68-pin PLCC, and 80-pin TQFP
Military product compliant to MIL-PRF-38535 QML
Industrial temperature range (-40擄C to +85擄C) is available
for selected speeds.
Recommended for replacement of IDT7099 (4K x 9) if
separate 9th bit data control signals are not required.
Functional Block Diagram
REGISTER
REGISTER
I/O
0-8L
WRITE
LOGIC
MEMOR
MEMORY
Y
ARRAY
ARRAY
WRITE
LOGIC
I/O
0-8R
SENSE
SENSE
AMPS DECODER DECODER AMPS
OE
L
CLK
L
CLKEN
L
Self-
timed
Write
Logic
REG
en
REG
en
OE
R
CLK
R
CLKEN
R
Self-
timed
Write
Logic
R/W
L
CE
L
REG
REG
R/W
R
CE
R
3490 drw 01
A
0L
-A
11L
A
0R
-A
11R
JANUARY 2001
1
漏2000 Integrated Device Technology, Inc.
DSC-3490/6