IDT70V9369L
High-Speed 3.3V 16K x 18 Dual-Port Synchronous Pipelined Static RAM
Industrial and Commercial Temperature Ranges
Timing Waveform of a Bank Select Pipelined Read (1,2)
t CYC2
CLK
t CH2
t CL2
t SA
t HA
ADDRESS (B1)
A 0
A 1
A 2
A 3
A 4
A 5
A 6
t SC
t HC
CE 0(B1)
t SC
t HC
DATA OUT(B1)
t CD2
Q 0
t CD2
Q 1
t CKHZ (3)
t CD2
Q 3
t DC
t DC
t CKLZ
(3)
t CKHZ (3)
t SA
t HA
ADDRESS (B2)
A 0
A 1
A 2
A 3
A 4
A 5
A 6
t SC t HC
CE 0(B2)
t SC
t HC
t CD2
t CKHZ (3)
t CD2
DATA OUT(B2)
t CKLZ (3)
Q 2
t CKLZ (3)
Q 4
NOTES:
5648 drw 08
1. B1 Represents Bank #1; B2 Represents Bank #2. Each Bank consists of one IDT70V9369 for this waveform, and are setup for depth expansion in this
example. ADDRESS (B1) = ADDRESS (B2) in this situation.
2. UB , LB , OE , and ADS = V IL ; CE 1(B1) , CE 1(B2) , R/ W and CNTRST = V IH .
3. Transition is measured 0mV from Low or High-impedance voltage with the Output Test Load (Figure 2).
4. CE 0 , UB , LB , and ADS = V IL ; CE 1 and CNTRST = V IH .
5. OE = V IL for the Right Port, which is being read from. OE = V IH for the Left Port, which is being written to.
6. If t CCS < maximum specified, then data from right port READ is not valid until the maximum specified for t CWDD .
If t CCS > maximum specified, then data from right port READ is not valid until t CCS + t CD1 . t CWDD does not apply in this case.
7. All timing is the same for both Left and Right ports. Port "A" may be either Left or Right port. Port "B" is the opposite from Port "A".
Timing Waveform of Left Port Write to Pipelined Right Port Read (1,2,4)
CLK "A"
R/ W "A
"
t SW
t SA
t HW
t HA
ADDRESS "A"
DATA IN"A"
MATCH
t SD
t HD
VALID
NO
MATCH
t CO (3)
CLK "B"
t CD2
R/ W "B"
t SW
t SA
t HW
t HA
ADDRESS "B"
DATA OUT"B"
MATCH
NO
MATCH
VALID
NOTES:
t DC
5648 drw 09
,
1. CE 0 , BE n , and ADS = V IL ; CE 1 and REPEAT = V IH .
2. OE = V IL for Port "B", which is being read from. OE = V IH for Port "A", which is being written to.
3. If t CO < minimum specified, then data from Port "B" read is not valid until following Port "B" clock cycle (ie, time from write to valid read on opposite port will be
t CO + 2 t CYC2 + t CD2 ). If t CO > minimum, then data from Port "B" read is available on first Port "B" clock cycle (ie, time from write to valid read on opposite port
will be t CO + t CYC2 + t CD2 ).
4. All timing is the same for Left and Right ports. Port "A" may be either Left or Right port. Port "B" is the opposite of Port "A"
9
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