IC80C31 데이터 시트보기 (PDF) - Integrated Circuit Solution Inc

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IC80C31

CMOS SINGLE CHIP 8-BIT MICROCONTROLLER

Integrated Circuit Solution Inc 

IC80C51

IC80C31

ALE

PSEN

WR

PORT 0

PORT 2

tWHLH

tLLWL

tWLWH

tAVLL

tLLAX

A7-A0 FROM RI OR DPL

tAVWL

tQVWX

DATA OUT

A15-A8 FROM DPH

tWHQX

A7-A0 FROM PCL

INSTR IN

A15-A8 FROM PCH

Figure 30. External Data Memory Write Cycle

INSTRUCTION

ALE

CLOCK

DATAOUT

DATAIN

0

1

2

3

4

5

6

7

8

tXLXL

tQVXH

0

tXHQX

1

tXHDV

VALID

VALID

2

tXHDX

VALID

3

VALID

4

VALID

5

VALID

Figure 31. Shift Register Mode Timing Waveform

6

VALID

7

SET TI

VALID

SET RI

Vcc — 0.5V

0.45V

0.7Vcc

0.2Vcc — 0.1

tCHCL

tCLCX

tCHCX

tCLCH

tCLCL

Figure 32. External Clock Drive Waveform

S3-42

Integrated Circuit Solution Inc.

MC001-0B

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