SN74LS145 查看數據表（PDF） - ON Semiconductor

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SN74LS145

1-of-10 Decoder/Driver Open-Collector

ON Semiconductor 

SN74LS145

CONNECTION DIAGRAM DIP (TOP VIEW)

VCC P0 P1 P2 P3 Q9 Q8 Q7

16 15 14 13 12 11 10 9

1 2 3 4 56 78

Q0 Q1 Q2 Q3 Q4 Q5 Q6 GND

PIN NAMES

P0, P1, P2, P3

Q0 - Q9

BCD Inputs

Outputs

LOADING (Note a)

HIGH

LOW

0.5 U.L.

Open Collector

0.25 U.L.

15 U.L.

NOTES:

ąa) 1 TTL Unit Load (U.L.) = 40 mA HIGH/1.6 mA LOW.

LOGIC SYMBOL

15 14 13 12

P0 P1 P2 P3

Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9

1 2 3 4 5 6 7 9 10 11

VCC = PIN 16

GND = PIN 8

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