P80C552 查看數據表（PDF） - NXP Semiconductors.

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P80C552

Single-chip 8-bit microcontroller with 10-bit A/D, capture/compare timer, high-speed outputs, PWM

NXP Semiconductors. 

Philips Semiconductors

Single-chip 8-bit microcontroller with 10-bit A/D,

capture/compare timer, high-speed outputs, PWM

Product data

80C552/83C552

ALE

PSEN

tWHLH

WR

PORT 0

PORT 2

INSTRUCTION

ALE

CLOCK

OUTPUT DATA

WRITE TO SBUF

INPUT DATA

CLEAR RI

tLLWL

tWLWH

tAVLL

tLLAX

A0–A7

FROM RI OR DPL

tAVWL

tQVWX

tDW

DATA OUT

P2.0–P2.7 OR A8–A15 FROM DPH

tWHQX

A0–A7 FROM PCL

A8–A15 FROM PCH

Figure 4. External Data Memory Write Cycle

tHIGH

VIH1

0.8 V

VIH1

0.8 V

tLOW

tr

VIH1

0.8 V

tCLCL

tf

VIH1

0.8 V

Figure 5. External Clock Drive XTAL1

0

1

2

3

4

5

6

7

tXLXL

INSTR IN

SU01696

SU01697

8

tQVXH

tXHQX

0

1

tXHDV

2

tXHDX

VALID

VALID

VALID

3

VALID

4

VALID

Figure 6. Shift Register Mode Timing

5

VALID

6

7

VALID

SET TI

VALID

SET RI

SU01678

2002 Sep 03

17

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