M37640E8FP 查看數據表（PDF） - Mitsumi

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M37640E8FP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

Mitsumi 

Ver 1.4

MITSUBISHI MICROCOMPUTERS

7640 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

RD, WR

AB15-AB8

AB7-AB0

RDY

DB0-DB7

(CPU Read Phase)

DB0-DB7

(CPU Write Phase)

___

___

twl(RD), twl(WR)

___

td(AH - W___R)

td(AH - RD)

0.5Vcc

___

tv(W___R - AH)

tv(RD - AH)

0.5Vcc

___

td(AL - W___R)

td(AL - RD)

___

tv(_W__R - AL)

tv(RD - AL)

0.5Vcc

___

tsu(RDY W__R_ )

tsu(RDY - RD)

0.8Vcc

0.2Vcc

___

th(W___R - RDY)

th(RD - RDY)

___

___

tsu(DB - RD) th(RD - DB)

___

td(WR - DB)

0.5Vcc

0.8Vcc

0.2Vcc

___

tv(WR - DB)

Fig. 2.5. Microprocessor and Memory Expansion Mode Timing Diagram 2

SIO

SCLK

SRXD

Fig. 2.6. SIO Timing Diagram

STXD

SRDY

tc(SCLKE,I)

twl(SCLKE,I)

twh(SCLKE,I)

0.2Vcc

0.8Vcc

tsu(SRXD-SCLKE,I) th(SCLKE,I-SRXD)

0.8Vcc

0.2Vcc

td(SCLKE,I-STXD)

0.5Vcc

__

tv(SCLKE-SRDY)

0.8Vcc

Measurement output pin

1kΩ

Measurement output pin

100pF

100pF

CMOS Output

N-channel Open-drain Output

Fig. 2.7. Output Switching Characteristics Measurements Circuits

89

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