Renesas PCA4738L-64A Informações Técnicas descarregar pdf (Página 52)

MITSUBISHI MICROCOMPUTERS

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

3802 Group

49

(4) Timing Diagram in Memory Expansion Mode and Microprocessor Mode (b)

0.5 V

CC

RD,WR

0.5 V

CC

AD15–AD8

t

d(AH-WR)

t

v(WR-AH)

0.5 V

CC

AD7–AD0

t

d(AL-WR)

t

v(WR-AL)

0.8 V

CC

0.2 V

CC

DB

0

–DB

7

0.5 V

CC

RD

t

SU(DB-RD)

t

h(RD-DB)

0.5 V

CC

DB

0

–DB

7

0.5 V

CC

WR

t

d(WR-DB)

t

v(WR-DB)

t

h(WR-ONW)

ONW

t

su(ONW-WR)

t

v(RD-AH)

t

d(AH-RD)

t

d(AL-RD)

t

v(RD-AL)

t

h(RD-ONW)

t

su(ONW-RD)

t

WL(RD)

t

WL(WR)

(At CPU reading)

(At CPU writing)

t

WL(RD)

t

WL(WR)

0.8 V

CC

0.2 V

CC

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