HIGH-SPEED 2.5V
256/128/64K x 36
IDT70T3519/99/89S
SYNCHRONOUS
DUAL-PORT STATIC RAM
WITH 3.3V OR 2.5V INTERFACE
Features:
– Data input, address, byte enable and control registers
– Self-timedwriteallowsfastcycletime
Separate byte controls for multiplexed bus and bus
matching compatibility
Dual Cycle Deselect (DCD) for Pipelined Output Mode
2.5V (±100mV) power supply for core
LVTTL compatible, selectable 3.3V (±150mV) or 2.5V
(±100mV) power supply for I/Os and control signals on
each port
Industrial temperature range (-40°C to +85°C) is
available at 166MHz and 133MHz
Available in a 256-pin Ball Grid Array (BGA), a 208-pin
Plastic Quad Flatpack (PQFP) and 208-pin fine pitch Ball
Grid Array (fpBGA)
Supports JTAG features compliant with IEEE 1149.1
Due to limited pin count JTAG is not supported on the 208-
pin PQFP package
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True Dual-Port memory cells which allow simultaneous
access of the same memory location
High-speed data access
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– Commercial: 3.4 (200MHz)/3.6ns (166MHz)/
4.2ns (133MHz)(max.)
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– Industrial: 3.6ns (166MHz)/4.2ns (133MHz) (max.)
Selectable Pipelined or Flow-Through output mode
Counter enable and repeat features
Dual chip enables allow for depth expansion without
additional logic
Interrupt and Collision Detection Flags
Full synchronous operation on both ports
– 5ns cycle time, 200MHz operation (14Gbps bandwidth)
– Fast 3.4ns clock to data out
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– 1.5ns setup to clock and 0.5ns hold on all control, data, and
address inputs @ 200MHz
FunctionalBlockDiagram
BE3R
BE3L
BE2L
BE1L
BE0L
BE2R
BE1R
BE0R
FT/PIPE
L
0a 1a
a
0b 1b
b
0c 1c
c
0d 1d
d
1d 0d
d
1c 0c
c
1b 0b
b
1a 0a
a
FT/PIPER
1/0
1/0
R/WL
R/WR
CE0L
CE0R
1
1
CE1R
CE1L
0
0
B
B B B
B
B B B
1/0
1/0
W W W W W W W W
0
L
1
L
2
L
3
L
3
R
2
1
R
0
R
R
OE
R
OE
L
Dout0-8_L
Dout0-8_R
Dout9-17_L
Dout18-26_L
Dout27-35_L
Dout9-17_R
Dout18-26_R
Dout27-35_R
,
1d 0d 1c 0c
1b 0b 1a 0a
0a 1a 0b 1b
0c 1c 0d 1d
d c b a
0/1
0/1
FT/PIPE
R
FT/PIPE
L
a bc d
256/128/64K x 36
MEMORY
ARRAY
I/O0L - I/O35L
I/O0R - I/O35R
Din_L
Din_R
,
CLK
R
CLK
L
(1)
17R
(1)
17L
A
A
Counter/
Address
Reg.
Counter/
Address
Reg.
A
0L
REPEAT
ADS
A
0R
REPEAT
ADS
CNTEN
ADDR_R
ADDR_L
L
R
R
L
R
CNTEN
L
TDI
TCK
TMS
TRST
INTERRUPT
CE0
CE1
R
CE
0
L
JTAG
COLLISION
DETECTION
LOGIC
R
CE1
TDO
L
R/
W
L
R/W
R
COL
L
COL
R
INT
L
INT
R
(2)
(2)
ZZR
ZZ
CONTROL
LOGIC
ZZ
L
5666 drw 01
NOTES:
1. Address A17 is a NC for the IDT70T3599. Also, Addresses A17 and A16 are NC's for the IDT70T3589.
2. The sleep mode pin shuts off all dynamic inputs, except JTAG inputs, when asserted. All static inputs, i.e., PL/FTx and OPTx
APRIL 2004
and the sleep mode pins themselves (ZZx) are not affected during sleep mode.
1
DSC 5666/6
©2004IntegratedDeviceTechnology,Inc.