7721 datasheet(556/577 Pages) RENESAS

556 / 577 page

7721 Group User’s Manual

17–93

Appendix 11. Electrical characteristics

APPENDIX

td(AM-E)

tw(L) tw(H)

tw(EL)

td(E- 1)

td(AL-E)

td(E-DHQ)

Address

td(E-DLQ)

td(AH-E)

Address

th(ALE-AM)

td(AM-ALE)

th(ALE-AH)

td(AH-ALE)

th(E-BHE)

td(BHE-E)

td(ALE-E)

tw(ALE)

th(E-R/W)

td(E-PiQ)

th(E-AL)

th(E-AM)

th(E-DHQ)

th(E-DLQ)

th(E-BLE)

td(BLE-E)

td(R/W-E)

Data

<Write>

Microprocessor mode : with Wait

f(XIN)

Address output

A0–A7

Port Pi output

(i = 4–10)

Address/Data output

A16/D0–A23/D7

ALE output

R/W output

Address output

A8–A15

(BYTE = “H”)

Address/Data output

A8/D8–A15/D15

(BYTE = “L”)

Data input

D0–D15

(BYTE = “L”)

Data input

D0–D7

BHE output

BLE output

Test conditions (port Pi)

•Vcc = 5 V ± 10 %

•Input timing voltage : VIL = 1.0 V, VIH = 4.0 V

•Output timing voltage : VOL = 0.8 V, VOH = 2.0 V

Test conditions (except port Pi)

•Vcc = 5 V ± 10 %

•Output timing voltage : VOL = 0.8 V, VOH = 2.0 V

•Data input : VIL = 0.8 V, VIH = 2.5 V

Address

Data

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