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IDT70V3389S Datasheet(PDF) 5 Page - Integrated Device Technology

Part No. IDT70V3389S
Description  HIGH-SPEED 3.3V SYNCHRONOUS PIPELINED DUAL-PORT STATIC RAM
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Maker  IDT [Integrated Device Technology]
Homepage  http://www.idt.com
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IDT70V3389S Datasheet(HTML) 5 Page - Integrated Device Technology

 
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6.42
IDT70V3389S
High-Speed 64K x 18 3.3V Dual-Port Synchronous Pipelined Static RAM
Industrial and Commercial Temperature Ranges
5
NOTES:
1. "H" = VIH, "L" = VIL, "X" = Don't Care.
2. ADS, CNTEN, CNTRST = X.
3. OE is an asynchronous input signal.
Trut h Ta ble I —Re a d/Writ e a nd Ena ble Cont rol(1,2,3)
Pin N a m e s
Left Port
Right Port
Names
CE0L, CE1L
CE0R, CE1R
Chip Enables
R/WL
R/WR
Read/Write Enable
OEL
OER
Output Enable
A0L - A15L
A0R - A15R
Address
I/O0L - I/O17L
I/O0R - I/O17R
Data Input/Output
CLKL
CLKR
Clock
ADSL
ADSR
Address Strobe Enable
CNTENL
CNTENR
Counter Enable
CNTRSTL
CNTRSTR
Counter Reset
UBL - LBL
UBR - LBR
Byte Enables (9-bit bytes)
VDDQL
VDDQR
Power (I/O Bus) (3.3V or 2.5V)(1)
OPTL
OPTR
Option for selecting VDDQX(1,2)
VDD
Power (3.3V)(1)
VSS
Ground (0V)
4832 tbl 01
OE
CLK
CE0
CE1
UB
LB
R/W
Upper Byte
I/O9-18
Lower Byte
I/O0-8
MODE
X
L
H
H
H
X
High-Z
High-Z
All Bytes Deselected
X
LH
H
L
L
High-Z
DIN
Write to Lower Byte Only
X
LH
LH
L
DIN
High-Z
Write to Upper Byte Only
X
L
H
LLL
DIN
DIN
Write to Both Bytes
L
LH
H
LH
High-Z
DOUT
Read Lower Byte Only
L
LH
LH
H
DOUT
High-Z
Read Upper Byte Only
L
LH
L
LH
DOUT
DOUT
Read Both Bytes
H
L
H
L
L
X
High-Z
High-Z
Outputs Disabled
4832 tbl 02
NOTES:
1. VDD, OPTX, and VDDQX must be set to appropriate operating levels prior to
applying inputs on the I/Os and controls for that port.
2. OPTX selects the operating voltage levels for the I/Os and controls on that port.
If OPTX is set to VIH (3.3V), then that port's I/Os and controls will operate at 3.3V
levels and VDDQX must be supplied at 3.3V. If OPTX is set to VIL (0V), then that
port's I/Os and controls will operate at 2.5V levels and VDDQX must be supplied
at 2.5V. The OPT pins are independent of one another—both ports can operate
at 3.3V levels, both can operate at 2.5V levels, or either can operate at 3.3V
with the other at 2.5V.


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