LS7166 View Datasheet(PDF) - LSI Corporation

Part Name

Description

Manufacturer

LS7166

24-BIT QUADRATURE COUNTER

LSI Corporation  

FIGURE 9. 80C31/8051 TO LS7166 INTERFACE IN EXTERNAL ADDRESS MODE

8051

80C31

P0.0 AD0

P0.1 AD1

P0.2 AD2

P0.3 AD3

P0.4 AD4

P0.5 AD5

P0.6 AD6

P0.7 AD7

ALE

74HC573

19

2

3

D1

Q1

4 D2

5 D3

6 D4

7

8

D5

D6

9

D7

D8

11 C

1 0C

12

Q8

7166

18 C/D

2 CS/

7166-110503-11

AD0

8 D0

AD1

9 D1

AD2

10 D2

AD3

11 D3

AD4

12 D4

AD5

13 D5

AD6

14 D6

AD7

15 D7

WR/

1 WR/

RD/

19 RD/

NOTE: Port_0 is open drain output. Add pull-up resistors to all Port_0 i/0 lines.

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