參數(shù)資料
型號(hào): IDT70T3589S-133BCI
廠商: Integrated Device Technology, Inc.
英文描述: HIGH-SPEED 2.5V 256/128/64K x 36 SYNCHRONOUS DUAL-PORT STATIC RAM WITH 3.3V OR 2.5V INTERFACE
中文描述: 高速與3.3V 2.5V的256/128/64K × 36 SYNCHRONOU S雙,端口靜態(tài)RAM或2.5V的接口
文件頁(yè)數(shù): 19/28頁(yè)
文件大?。?/td> 442K
代理商: IDT70T3589S-133BCI
6.42
IDT70T3519/99/89S
High-Speed 2.5V 256/128/64K x 36 Dual-Port Synchronous Static RAM Industrial and Commercial Temperature Ranges
Timing Waveform of Write with Address Counter Advance
(Flow-through or Pipelined Inputs)
(1)
t
CYC2
ADDRESS
An
t
CYC2
CLK
DATA
IN
R/
W
REPEAT
5666 drw 18
(3)
INTERNAL
ADS
CNTEN
WRITE TO
ADAn
ADVANCE
An+1
ADVANCE
WAn+2
CHOLD
An+2
READLAST
ADAn
DATA
OUT
t
SA
t
HA
,
An
t
SAD
t
HAD
t
SW
t
HW
t
SCN
t
HCN
t
SRPT
t
HRPT
t
SD
t
HD
t
CD1
An+1
An+2
An+2
An
An+1
An+2
An+2
D
0
D
1
D
2
D
3
An
An+1
An+2
An+2
AREAD
An+1
ADVANCE
CREAD
An+2
CHOLD
An+2
(4)
Timing Waveform of Counter Repeat
(2,6)
ADDRESS
An
CLK
DATA
IN
Dn
Dn + 1
Dn + 1
Dn + 2
ADS
CNTEN
t
CH2
t
CL2
5666 drw 17
INTERNAL
(3)
ADDRESS
An
(7)
An + 1
An + 2
An + 3
An + 4
Dn + 3
Dn + 4
t
SA
t
HA
t
SAD
t
HAD
WRITE
COUNTER HOLD
WRITE WITH COUNTER
WRITE
EXTERNAL
ADDRESS
WRITE
WITH COUNTER
t
SD
t
HD
t
SCN
t
HCN
NOTES:
1.
CE
0
,
BE
n
, and R/
W
= V
IL
; CE
1
and
REPEAT
= V
IH
.
2.
CE
0
,
BE
n
= V
IL
; CE
1
= V
IH
.
3. The "Internal Address" is equal to the "External Address" when
ADS
= V
IL
and equals the counter output when
ADS
= V
IH
.
4. No dead cycle exists during
REPEAT
operation. A READ or WRITE cycle may be coincidental with the counter
REPEAT
cycle: Address loaded by last valid
ADS
load will be accessed. For more information on
REPEAT
function refer to Truth Table II.
5.
CNTEN
= V
IL
advances Internal Address from ‘An’ to ‘An +1’. The transition shown indicates the time required for the counter to advance. The ‘An +1’Address is
written to during this cycle.
6. For Pipelined Mode user should add 1 cycle latency for outputs as per timing waveform of read cycle for pipelined operations.
相關(guān)PDF資料
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IDT70T3589S133BF HIGH-SPEED 2.5V 256/128/64K x 36 SYNCHRONOUS DUAL-PORT STATIC RAM WITH 3.3V OR 2.5V INTERFACE
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