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70V9079S12PFG Datasheet(PDF) 3 Page - Integrated Device Technology

Part # 70V9079S12PFG
Description  HIGH-SPEED 3.3V 64/32K x 8 SYNCHRONOUS DUAL-PORT STATIC RAM
Download  19 Pages
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

70V9079S12PFG Datasheet(HTML) 3 Page - Integrated Device Technology

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6.42
IDT70V9089/79S/L
High Speed 3.3V 64/32K x 8 Synchronous Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
3
Pin Names
Truth Table II—Address Counter Control(1,2,3)
Truth Table I—Read/Write and
Enable Control(1,2,3)
NOTES:
1. "H" = VIH, "L" = VIL, "X" = Don't Care.
2. ADS, CNTEN, CNTRST = X.
3. OE is an asynchronous input signal.
Left Port
Right Port
Names
CE0L
, CE1L
CE0R
, CE1R
Chip Enables
R/WL
R/WR
Read/Write Enable
OEL
OER
Output Enable
A0L - A15L(1)
A0R - A15R(1)
Address
I/O0L - I/O7L
I/O0R - I/O7R
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
VDD
Power (3.3V)
VSS
Ground (0V)
3750 tbl 01
OE
CLK
CE0
CE1
R/
W
I/O0-7
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
LH
H
DATAOUT Read
H
X
L
H
X
High-Z
Outputs Disabled
3750 tbl 02
External
Address
Previous
Internal
Address
Internal
Address
Used
CLK
ADS
CNTEN
CNTRST
I/O(3)
MODE
An
X
An
L(4)
XH
DI/O (n)
External Address Used
XAn
An + 1
H
L(5)
HDI/O(n+1)
Counter Enabled—Internal Address generation
XAn + 1
An + 1
HH
H
DI/O(n+1)
External Address Blocked—Counter disabled (An + 1 reused)
XX
A0
XX
L(4)
DI/O(0)
Counter Reset to Address 0
3750 tbl 03
NOTE:
1. A15X is a NC for IDT70V9079.
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 and CNTRST are 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.
2. LB and UB are single buffered regardless of state of FT/PIPE.
3. CEo and CE1 are single buffered when FT/PIPE = VIL,
CE
o and CE1 are double buffered when FT/PIPE = VIH,
i.e. the signals take two cycles to deselect.


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