MC14556B Motorola, MC14556B Datasheet

MC14556B

Manufacturer Part Number

MC14556B

Description

(MC14555B / MC14556B) Dual Binary to 1-of-4 Decoder/Demultiplexer

Manufacturer

Motorola

Datasheet

1.MC14556B.pdf (5 pages)

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Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

Dual Binary to 1-of-4

Decoder/Demultiplexer

MOS (CMOS) enhancement mode devices. Each Decoder/Demultiplexer

has two select inputs (A and B), an active low Enable input (E), and four

mutually exclusive outputs (Q0, Q1, Q2, Q3). The MC14555B has the

selected output go to the “high” state, and the MC14556B has the selected

output go to the “low” state. Expanded decoding such as binary–to–hexade-

cimal (1–of–16), etc., can be achieved by using other MC14555B or

MC14556B devices.

tion control, and demultiplexing (using the Enable input as a data input) in

digital data transmission systems.

* Maximum Ratings are those values beyond which damage to the device may occur.

†Temperature Derating:

REV 3

1/94

MAXIMUM RATINGS*

V in , V out

Symbol

MOTOROLA CMOS LOGIC DATA

I in , I out

The MC14555B and MC14556B are constructed with complementary

Applications include code conversion, address decoding, memory selec-

Motorola, Inc. 1995

V DD

Diode Protection on All Inputs

Active High or Active Low Outputs

Expandable

Supply Voltage Range = 3.0 Vdc to 18 Vdc

All Outputs Buffered

Capable of Driving Two Low–Power TTL Loads or One Low–Power

Schottky TTL Load Over the Rated Temperature Range

T stg

P D

T L

“P and D/DW” Packages: – 7.0 mW/C From 65

“L” Packages: – 12 mW/

DC Supply Voltage

Input or Output Voltage (DC or Transient)

Input or Output Current (DC or Transient),

per Pin

Power Dissipation, per Package†

Storage Temperature

Lead Temperature (8–Second Soldering)

MC14555B

(Voltages Referenced to V SS )

Parameter

C From 100

BLOCK DIAGRAM

V DD = PIN 16

V SS = PIN 8

C To 125

– 0.5 to V DD + 0.5

MC14556B

– 0.5 to + 18.0

– 65 to + 150

www.DataSheet4U.com

C Ceramic

Value

500

260

Unit

Enable

X = Don’t Care

guard against damage due to high static

voltages or electric fields. However, pre-

cautions must be taken to avoid applications of

any voltage higher than maximum rated volt-

ages to this high–impedance circuit. For proper

operation, V in and V out should be constrained

to the range V SS

appropriate logic voltage level (e.g., either V SS

or V DD ). Unused outputs must be left open.

This device contains protection circuitry to

Unused inputs must always be tied to an

Inputs

T A = – 55 to 125 C for all packages.

ORDERING INFORMATION

Select

MC14XXXBCP

MC14XXXBCL

MC14XXXBD

MC14555B

MC14556B

TRUTH TABLE

Q3 Q2 Q1 Q0 Q3 Q2 Q1 Q0

MC14555B

MC14555B MC14556B

(V in or V out )

Outputs

CASE 751B

CERAMIC

CASE 620

CASE 648

D SUFFIX

L SUFFIX

P SUFFIX

PLASTIC

Plastic

Ceramic

SOIC

MC14556B

V DD .

Related parts for MC14556B

MC14556B Summary of contents

Page 1

... B), an active low Enable input (E), and four mutually exclusive outputs (Q0, Q1, Q2, Q3). The MC14555B has the selected output go to the “high” state, and the MC14556B has the selected output go to the “low” state. Expanded decoding such as binary–to–hexade- cimal (1– ...

Page 2

... (per package pF – volts kHz is input frequency, and k = 0.002. MC14555B MC14555B MC14556B 2 (Voltages Referenced – Vdc Vdc Min Max Min V OL 5.0 — 0.05 — ...

Page 3

... INPUT A HIGH, INPUT E LOW 90% INPUT B 50% 10 PHL t PLH V OH 90% OUTPUT Q3 50% MC14556B 10 THL t TLH t PLH t PHL V OH 90% OUTPUT Q3 50% MC14555B 10 TLH t THL Figure 2. Dynamic Signal Waveforms * MC14555B MC14556B Unit ...

Page 4

... 0.25 (0.010 –A– 0.25 (0.010) M MC14555B MC14556B 4 OUTLINE DIMENSIONS L SUFFIX CERAMIC DIP PACKAGE CASE 620–10 ISSUE V –B– 0.25 (0.010 SUFFIX PLASTIC DIP PACKAGE CASE 648–08 ...

Page 5

... MAXIMUM MATERIAL CONDITION. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 9.80 10.00 0.386 0.393 B 3.80 4.00 0.150 0.157 C 1.35 1.75 0.054 0.068 D 0.35 0.49 0.014 0.019 F 0.40 1.25 0.016 0.049 G 1.27 BSC 0.050 BSC J 0.19 0.25 0.008 0.009 K 0.10 0.25 0.004 0.009 5.80 6.20 0.229 0.244 R 0.25 0.50 0.010 0.019 are registered MC14555B MC14556B MC14555B/D 5 ...

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