IDT70T3589 Integrated Device Technology, IDT70T3589 Datasheet - Page 18

• Manufacturer Part Number: IDT70T3589
• Description: 64k X 36 Sync, 3.3v/2.5v Dual-port Ram, Interleaved I/o S
• Manufacturer: Integrated Device Technology

Timing Waveform of Pipelined Read with Address Counter Advance
Timing Waveform of Flow-Through Read with Address Counter Advance
NOTES:
1. CE
2. If there is no address change via ADS = V
IDT70T3519/99/89S
High-Speed 2.5V 256/128/64K x 36 Dual-Port Synchronous Static RAM
the data output remains constant for subsequent clocks.
ADDRESS
DATA
0
, OE, BEn = V
ADDRESS
CNTEN
DATA
CNTEN
CLK
ADS
OUT
CLK
ADS
OUT
IL
; CE
Qx - 1
Qx
t
t
SAD
SA
EXTERNAL
(2)
ADDRESS
1
t
t
, R/W, and REPEAT = V
An
SA
SAD
(2)
READ
EXTERNAL
ADDRESS
t
An
t
HAD
HA
t
READ
t
DC
t
t
CH1
HAD
HA
t
CH2
t
t
CD1
CYC1
t
CYC2
t
CL1
IL
t
CL2
(loading a new address) or CNTEN = V
Qx
Qn
IH
.
t
CD2
t
READ WITH COUNTER
DC
READ WITH COUNTER
Qn
Qn + 1
6.42
18
IL
Qn + 1
t
t
SCN
(advancing the address), i.e. ADS = V
SAD
Qn + 2
t
t
HCN
HAD
COUNTER
HOLD
Industrial and Commercial Temperature Ranges
t
t
SCN
SAD
t
t
HCN
HAD
COUNTER
Qn + 2
Qn + 3
HOLD
(2)
(2)
COUNTER
IH
READ
WITH
and CNTEN = V
COUNTER
READ
WITH
APRIL 10, 2006
5666 drw 16
5666 drw 15
IH
Qn + 4
, then
Qn + 3
(1)
(1)