參數(shù)資料
型號: IDT7142LA55JI
廠商: Integrated Device Technology, Inc.
英文描述: HIGH-SPEED 2K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTS
中文描述: 高速2K × 8雙端口靜態(tài)RAM的中斷
文件頁數(shù): 13/16頁
文件大?。?/td> 255K
代理商: IDT7142LA55JI
6.42
IDT7132SA/LA and IDT 7142SA/LA
High Speed 2K x 8 Dual Port Static RAM Military, Industrial and Commercial Temperature Ranges
Timing Waveform of
BUSY
Arbitration Controlled by
CE
Timing
(1)
Timing Waveform of
BUSY
Arbitration Controlled
by Address Match Timing
(1)
Truth Tables
Table I. Non-Contention Read/Write Control
(4)
Left or Right Port
(1)
NOTES:
1.
2.
3.
4.
A
0L
- A
10L
A
0R
- A
10R
If
BUSY
= L, data is not written.
If
BUSY
= L, data may not be valid, see t
WDD
and t
DDD
timing.
'H' = V
IH
, 'L' = V
IL
, 'X' = DON’T CARE, 'Z' = HIGH IMPEDANCE
t
APS
(2)
ADDR
"A"
and
"B"
ADDRESSES MATCH
t
BAC
t
BDC
CE
"B"
CE
"A"
BUSY
"A"
2692 drw 13
BUSY
"B"
ADDRESSES DO NOT MATCH
ADDRESSES MATCH
t
APS
(2)
ADDR
"A"
ADDR
"B"
2692 drw 14
t
BAA
t
BDA
t
RC
or t
WC
NOTES:
1.
2.
All timing is the same for left and right ports. Port “A” may be either left or right port. Port “B” is the opposite from port “A”.
If t
APS
is not satisified, the
BUSY
will be asserted on one side or the other, but there is no guarantee on which side
BUSY
will be asserted (7132 only).
R/
W
CE
OE
D
0-7
Function
X
H
X
Z
Port Disabled and in Power-Down Mode, I
SB2
or I
SB4
X
H
X
Z
CE
R
=
CE
L
= V
IH,
Power-Down Mode, I
SB1
or I
SB3
L
L
X
DATA
IN
Data on Port Written into Memory
(2)
H
L
L
DATA
OUT
Data in Memory Output on Port
(3)
X
L
H
Z
High Impedance Outputs
2692 tbl 12
相關PDF資料
PDF描述
IDT7142LA55L48I HIGH-SPEED 2K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTS
IDT7142SA100L48I HIGH-SPEED 2K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTS
IDT7142SA100PI HIGH-SPEED 2K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTS
IDT7142SA20CI HIGH-SPEED 2K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTS
IDT7142SA20FI HIGH-SPEED 2K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTS
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