MC14511B 데이터 시트보기 (PDF) - ON Semiconductor

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MC14511B

BCD−To−Seven Segment Latch/Decoder/Driver

ON Semiconductor 

MC14511B

This device contains protection circuitry to protect the inputs against damage due to high static voltages or electric fields.

However, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages

to this high−impedance circuit. A destructive high current mode may occur if Vin and Vout are not constrained to the range

VSS v (Vin or Vout) v VDD.

Due to the sourcing capability of this circuit, damage can occur to the device if VDD is applied, and the outputs are shorted

to VSS and are at a logical 1 (See Maximum Ratings).

Unused inputs must always be tied to an appropriate logic voltage level (e.g., either VSS or VDD).

PIN ASSIGNMENT

B1

C2

LT 3

BI 4

LE 5

D6

16 VDD

15 f

14 g

13 a

12 b

11 c

a

f gb

e

c

d

A7

10 d

VSS 8

9e

DISPLAY

012 345 6789

TRUTH TABLE

Inputs

Outputs

LE BI LT D C B A a b c d e f g Display

X X0 X X X X 1 1 1 1 1 1 1

8

X 0 1 X X X X 0 0 0 0 0 0 0 Blank

0 11 0 0 0 0 1 1 1 1 1 1 0

0

0 11 0 0 0 1 0 1 1 0 0 0 0

1

0 11 0 0 1 0 1 1 0 1 1 0 1

2

0 11 0 0 1 1 1 1 1 1 0 0 1

3

0 11 0 1 0 0 0 1 1 0 0 1 1

4

0 11 0 1 0 1 1 0 1 1 0 1 1

5

0 11 0 1 1 0 0 0 1 1 1 1 1

6

0 11 0 1 1 1 1 1 1 0 0 0 0

7

0 11 1 0 0 0 1 1 1 1 1 1 1

8

0 11 1 0 0 1 1 1 1 0 0 1 1

9

0 1 1 1 0 1 0 0 0 0 0 0 0 0 Blank

0 1 1 1 0 1 1 0 0 0 0 0 0 0 Blank

0 1 1 1 1 0 0 0 0 0 0 0 0 0 Blank

0 1 1 1 1 0 1 0 0 0 0 0 0 0 Blank

0 1 1 1 1 1 0 0 0 0 0 0 0 0 Blank

0 1 1 1 1 1 1 0 0 0 0 0 0 0 Blank

1 11 X X X X

*

*

X = Don’t Care

* Depends upon the BCD code previously applied when LE = 0

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