7733 datasheet(397/940 Pages) RENESAS

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ELECTRICAL CHARACTERISTICS

7733 Group User’s Manual

15–18

15.9 Memory expansion mode and Microprocessor mode : with wait 1

When external memory area is accessed with wait 1 (Wait bit = “0” and Wait selection bit = “1”)

th(E– R/W)

td(R/W–E)

td(BHE–E)

th(E– BHE)

tw(ALE)

th(E–An)

tw(EL)

td(E–φ1)

Address

XIN

Address output

A0–A7, A8–A15

(BYTE = “H”)

Data input

D8–D15 (BYTE = “L”)

D0–D7 (BYTE = “H”)

ALE output

BHE output

R/W output

th(E– BHE)

td(ALE–E)

tsu(D–E)

th(E–D)

td(An–E)

td(E–φ1)

Address

Memory expansion mode and Microprocessor mode :

Port Pi output

(i = 4–8)

Port Pi input

(i = 4–8)

td(E–PiQ)

tsu(PiD–E)

th(E–PiD)

tw(H)

tw(L)

td(E–DQ)

th(ALE–A)

th(E–DQ)

Address/Data output

A16/D0–A23/D7,

A8/D8–A15/D15

(BYTE = “L”)

Data

tpxz(E–DZ)

tpzx(E–DZ)

(Write)

(Read)

td(E–φ1)

tw(EL)

th(E–An)

td(An–E)

td(ALE–E)

tw(ALE)

tw(L) tw(H)

td(R/W–E)

td(BHE–E)

th(E– R/W)

Measuring conditions (Ports P4–P8)

• VCC = 5 V ± 10 %

• Input timing voltage

• Output timing voltage

: VIL = 1.0 V, VIH = 4.0 V

: VOL = 0.8 V, VOH = 2.0 V

Measuring conditions (

, E, Ports P0–P3)

• VCC = 5 V ± 10 %

• Output timing voltage

• Ports P1, P2 input

: VOL = 0.8 V, VOH = 2.0 V

: VIL = 0.8 V, VIH = 2.5 V

tsu(A–ALE)

td(A–E)

Address

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