PC912X datasheet(3/5 Pages) SHARP

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PC912X

Ω

0.1

µ F

90%

10%

7.5mA

3.75mA

0mA

1.5V

tPHL

tPLH

VOL

* C L includes the probe and wiring capacitance.

Parameter

Symbol

MIN.

MAX.

Unit

Low level input current

I FL

250

µ A

High level input current

I FH

715

High level enable voltage

V EH

2.0

V CC

Low level enable voltage

V EL

0.8

Supply voltage

V CC

4.5

5.5

Fan out

( TTL load )

N-

Operating temperature

Topr

˚C

s Recommended Operating Conditions

1. When the enable input is not used, please connect to Vcc.

2. It is necessary to connect a by-pass ceramic capacitor

1cm from pin.

8 V CC

7 V E

(Enable )

6 V O

Anode 2

Cathode 3

130

Ω

(TYP.)

1.6k

Ω

(TYP.)

Ω

(TYP.)

VCC

GND

Buffer

circuit

(*Positive logic )

s Block Diagram

Input

Enable

Output

L : Logic ( 0)

H : Logic ( 1)

Z : High impedance

V E

Buffer output

* Positive logic:

( 0.01 to 0.1

µ F) between Vcc and GND at the position within

Fig. 1 Test Circuit for t PHL, t PLH, t r and t f

s Truth Table

5 GND

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