6.42
IDT70V9179L
High-Speed 32K x 9 Dual-Port Synchronous Pipelined Static RAM Industrial and Commercial Temperature Ranges
10
Timing Waveform with Port-to-Port Flow-Through Read
(4,5,7)
DATAIN "A"
CLK "B"
R/W "B"
ADDRESS "A"
R/W "A"
CLK "A"
ADDRESS "B"
NO
MATCH
MATCH
NO
MATCH
MATCH
VALID
tCWDD
tCD1
tDC
DATAOUT "B"
4860 drw 09
VALID
VALID
tSW tHW
tSA tHA
tSD tHD
tHW
tCD1
tCCS
tDC
tSA
tSW
tHA
(6)
(6)
NOTES:
1. B1 Represents Bank #1; B2 Represents Bank #2. Each Bank consists of one IDT70V9179 for this waveform, and are setup for depth expansion in this
example. ADDRESS(B1) = ADDRESS(B2) in this situation.
2. OE, and ADS = VIL; CE1(B1), CE1(B2), R/W, CNTEN, and CNTRST = VIH.
3. Transition is measured 0mV from Low or High-impedance voltage with the Output Test Load (Figure 2).
4. CE0 and ADS = VIL; CE1, CNTEN, and CNTRST = VIH.
5. OE = VIL for the Right Port, which is being read from. OE = VIH for the Left Port, which is being written to.
6. If tCCS < maximum specified, then data from right port READ is not valid until the maximum specified for tCWDD.
If tCCS > maximum specified, then data from right port READ is not valid until tCCS + tCD1. tCWDD 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".