7643 datasheet(330/424 Pages) RENESAS

330 / 424 page

Rev.2.00

Aug 28, 2006

page 7 of 98

7643 Group

REJ09B0133-0200

APPENDIX

3.1 Electrical characteristics

φ clock cycle time

φ clock “H” pulse width

φ clock “L” pulse width

AB15–AB8 delay time

AB15–AB8 valid time

AB7–AB0 delay time

AB7–AB0 valid time

WR delay time

WR valid time

RD delay time

RD valid time

SYNCOUT delay time

SYNCOUT valid time

DMAOUT delay time

DMAOUT valid time

RDY setup time

RDY hold time

HOLD setup time

HOLD hold time

HOLD “L” delay time

HOLD “H” delay time

Data bus setup time

Data bus hold time

Data bus delay time

Data bus valid time (Note 1)

EDMA delay time

EDMA valid time

WR pulse width

RD pulse width

AB15–AB8 valid time before WR

AB7–AB0 valid time before WR

AB15–AB8 valid time after WR

AB7–AB0 valid time after WR

AB15–AB8 valid time before RD

AB7–AB0 valid time before RD

AB15–AB8 valid time after RD

AB7–AB0 valid time after RD

RDY setup time before WR

RDY hold time after WR

RDY setup time before RD

RDY hold time after RD

Data bus setup time before RD

Data bus hold time after RD

Data bus delay time before WR

Data bus valid time after WR (Note 1)

EDMA delay time after WR

EDMA valid time after RD

USB output rise time, CL = 50 pF

USB output fall time, CL = 50 pF

tC(

φ)

tWH(

φ)

tWL(

φ)

td(

φ -AH)

tv(

φ -AH)

td(

φ -AL)

tv(

φ -AL)

td(

φ -WR)

tv(

φ -WR)

td(

φ -RD)

tv(

φ -RD)

td(

φ -SYNC)

tv(

φ -SYNC)

td(

φ -DMA)

tv(

φ -DMA)

tsu(RDY-

φ)

th(

φ -RDY)

tsu(HOLD-

φ)

th(

φ -HOLD)

td(

φ -HLDAL)

td(

φ -HLDAH)

tsu(DB-

φ)

th(

φ -DB)

td(

φ -DB)

tV(

φ -DB)

td(

φ -EDMA)

tv(

φ -EDMA)

tWL(WR) (Note 2)

tWL(RD) (Note 2)

td(AH-WR)

td(AL-WR)

tv(WR-AH)

tv(WR-AL)

td(AH-RD)

td(AL-RD)

tv(RD-AH)

tv(RD-AL)

tsu(RDY-WR)

th(WR-RDY)

tsu(RDY-RD)

th(RD-RDY)

tsu(DB-RD)

th(RD-DB)

td(WR-DB)

tv(WR-DB)

tv(WR-EDMA)

tv(RD-EDMA)

tr(D+), tr(D-)

tf(D+), tf(D-)

Limits

Parameter

Min.

83.33

0.5•tc(

φ) – 5

0.5•tc(

φ) – 5

0.5•tc(

φ) – 5

0.5•tc(

φ) – 5

0.5•tc(

φ) – 28

0.5•tc(

φ) – 30

0.5•tc(

φ) – 28

0.5•tc(

φ) – 30

Typ.

Max.

Symbol

Unit

3.1.5 Timing requirements and switching characteristics in memory expansion and microprocessor

modes (In Vcc = 5 V)

Table 3.1.6

Timing requirements and switching characteristics in memory expansion and

microprocessor modes (Vcc = 4.15 to 5.25 V, Vss = 0 V, Ta = –20 to 70°C, unless otherwise noted)

Notes 1: Test conditions: IOHL =

± 5mA, CL = 50 pF

2: twL(RD) = ((n + 0.5) • tc(PHI)) – 5 ns (n = wait number)

twL(WR) = ((n + 0.5) • tc(PHI)) – 5 ns (n = wait number)

For example, two software waits, PHI = 12 MHz operating: twL(RD) = 2.5 • tc(PHI) – 5 ns = 203.33 ns

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