參數(shù)資料
型號(hào): IDT70V9179L6PFI
廠商: Integrated Device Technology, Inc.
英文描述: HIGH-SPEED 3.3V 64/32K x 9 SYNCHRONOUS PIPELINED DUAL-PORT STATIC RAM
中文描述: 高速3.3 64/32K × 9同步流水線雙端口靜態(tài)RAM
文件頁數(shù): 3/17頁
文件大?。?/td> 305K
代理商: IDT70V9179L6PFI
6.42
IDT70V9189/79L
High-Speed 64/32K x 9 Dual-Port Synchronous Pipelined Static RAM Industrial and Commercial Temperature Ranges
Pin Names
Left Port
Right Port
Names
3
NOTES:
1. "H" = V
IH,
"L" = V
IL,
"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
CE
0
CE
1
R/
W
CE
0L,
CE
1L
CE
0R,
CE
1R
Chip Enables
R/
W
L
R/
W
R
Read/Write Enable
OE
L
OE
R
Output Enable
A
0L
- A
15L
(1)
A
0R
- A
15R
(1)
Address
I/O
0L
- I/O
8L
I/O
0R
- I/O
8R
Data Input/Output
CLK
L
CLK
R
Clock
ADS
L
ADS
R
Address Strobe Enable
CNTEN
L
CNTEN
R
Counter Enable
CNTRST
L
CNTRST
R
Counter Reset
FT
/PIPE
L
FT
/PIPE
R
Flow-Through / Pipeline
V
DD
Power (3.3V)
V
SS
Ground (0V)
4860 tbl 01
I/O
0-8
MODE
X
H
X
X
High-Z
Deselected–Power Down
X
X
L
X
High-Z
Deselected–Power Down
X
L
H
L
DATA
IN
Write
L
L
H
H
DATA
OUT
Read
H
X
L
H
X
High-Z
Outputs Disabled
4860 tbl 02
Truth Table II—Address Counter Control
(1,2,3)
External
Address
Previous
Internal
Address
Internal
Address
Used
CLK
ADS
CNTEN
CNTRST
I/O
(3)
MODE
An
X
An
L
(4)
X
H
D
I/O
(n)
External Address Used
X
An
An + 1
H
L
(5)
H
D
I/O
(n+1)
Counter Enabled—Internal Address generation
X
An + 1
An + 1
H
H
H
D
I/O
(n+1)
External Address Blocked—Counter disabled (An + 1 reused)
X
X
A
0
X
X
L
(4)
D
I/O
(0)
Counter Reset to Address 0
4860 tbl 03
NOTE:
1. Address A
15
X
is NC for IDT70V9179.
2.
LB
and
UB
are single buffered regardless of state of
FT
/PIPE.
3.
CE
o and CE
1
are single buffered when
FT
/PIPE = V
IL
,
CE
o and CE
1
are double buffered when
FT
/PIPE = V
IH
,
i.e. the signals take two cycles to deselect.
NOTES:
1. "H" = V
IH,
"L" = V
IL,
"X" = Don't Care.
2.
CE
0
and
OE
= V
IL
; CE
1
and R/
W
= V
IH
.
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
CE
0
and CE
1
.
5. The address counter advances if
CNTEN
= V
IL
on the rising edge of CLK, regardless of all other signals including
CE
0
and CE
1
.
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