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IDT709189L12PFI Datasheet(PDF) 3 Page - Integrated Device Technology

Part # IDT709189L12PFI
Description  HIGH-SPEED 64K x 9 SYNCHRONOUS PIPELINED DUAL-PORT STATIC RAM
Download  15 Pages
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT709189L12PFI Datasheet(HTML) 3 Page - Integrated Device Technology

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6.42
IDT709189L
High-Speed 64K x 9 Synchronous Pipelined Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
3
NOTES:
1. "H" = VIH, "L" = VIL, "X" = Don't Care.
2.
ADS, CNTEN, CNTRST = X.
3.
OE is an asynchronous input signal.
Truth Table I—Read/Write and Enable Control(1,2,3)
OE
CLK
CE0
CE1
R/
W
I/O0-8
Mode
X
H
X
X
High-Z
Deselected—Power Down
X
X
L
X
High-Z
Deselected—Power Down
X
LH
L
DATAIN
Write
L
L
HHDATAOUT
Read
H
X
L
H
X
High-Z
Outputs Disabled
4848 tbl 02
Pin Names
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/O8L
I/O0R - I/O8R
Data Input/Output
CLKL
CLKR
Clock
ADSL
ADSR
Address Strobe
CNTENL
CNTENR
Counter Enable
CNTRSTL
CNTRSTR
Counter Reset
FT/PIPEL
FT/PIPER
Flow-Through/Pipeline
VCC
Power
GND
Ground
4848 tbl 01
NOTES:
1. "H" = VIH, "L" = VIL, "X" = Don't Care.
2.
CE0 and OE = VIL; CE1 and R/W = VIH.
3. Outputs configured in Flow-Through Output mode: if outputs are in Pipelined mode the data out will be delayed by one cycle.
4.
ADS is independent of all other signals including CE0 and CE1.
5. The address counter advances if
CNTEN = VIL on the rising edge of CLK, regardless of all other signals including CE0 and CE1.
6. While an external address is being loaded (
ADS = VIL), R/W = VIH is recommended to ensure data is not written arbitrarily.
Truth Table II—Address Counter Control(1,2,6)
Address
Previous
Address
Addr
Used
CLK(3)
ADS
CNTEN
CNTRST
I/O(3)
Mode
XX
0
XX
L
DI/O(0)
Counter Reset to Address 0
An
X
An
L(4)
XH
DI/O(n)
External Address Utilized
An
Ap
Ap
HH
H
DI/O(n)
External Address Blocked—Counter Disabled
XAp
Ap + 1
H
L
(5)
HDI/O(n+1)
Counter Enable—Internal Address Generation
4848 tbl 03


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