M54HC42F1R ST Microelectronics, M54HC42F1R Datasheet

M54HC42F1R

Manufacturer Part Number

M54HC42F1R

Description

BCD TO DECIMAL DECODER

Manufacturer

ST Microelectronics

Datasheet

1.M54HC42F1R.pdf (10 pages)

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DESCRIPTION

The M54/74HC42 is a high speed CMOS BCD-TO-

DECIMAL DECODER fabricated in silicon gate

It has the same high speed performance of LSTTL

combined with true CMOS low power consumption.

A BCD code applied to the four inputs A-D selects

one of ten decimal outputs Y0-Y9, which goes low

to fifteen gives a high level at all outputs. This device

also can be used as a 3-to-8 LINE DECODER, when

the D input is assigned as a disable input. This de-

vice is useful for code conversion, address decod-

ing, memory selection, demultiplexing, or readout

decoding.

All inputs are equipped with protection circuits against

static discharge and transient excess voltage.

INPUT AND OUTPUT EQUIVALENT CIRCUIT

December 1992

MOS technology.

HIGH SPEED

LOW POWER DISSIPATION

HIGH NOISE IMMUNITY

OUTPUT DRIVE CAPABILITY

10 LSTTL LOADS

SYMMETRICAL OUTPUT IMPEDANCE

BALANCED PROPAGATION DELAYS

WIDE OPERATING VOLTAGE RANGE

PIN AND FUNCTION COMPATIBLE

WITH 54/74LS42

PLH

NIH

= 13 ns (TYP.) AT V

= 4 A (MAX.) AT T

| = I

= t

(OPR) = 2 V TO 6 V

= V

PHL

NIL

= 4 mA (MIN.)

= 28 % V

(MIN.)

= 25 C

= 5 V

BCD TO DECIMAL DECODER

NC =

No Internal

Connecti o n

(Plastic Package)

(Micro Package)

M54HC42F1R

M74HC42B1R

PIN CONNECTIONS (top view)

M1R

B1R

ORDER CODES :

M74HC42M1R

M74HC42C1R

M54HC42

M74HC42

(Ceramic Package)

(Chip Carrier)

C1R

F1R

1/10

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M54HC42F1R Summary of contents

Page 1

... INPUT AND OUTPUT EQUIVALENT CIRCUIT December 1992 M54HC42 M74HC42 BCD TO DECIMAL DECODER B1R (Plastic Package) (Ceramic Package) M1R (Micro Package) (Chip Carrier) ORDER CODES : M54HC42F1R M74HC42M1R M74HC42B1R M74HC42C1R PIN CONNECTIONS (top view Internal Connecti o n F1R C1R 1/10 ...

Page 2

M54/M74HC42 PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 15, 14, 13 Data Inputs Multiplexer Outputs 10 GND Ground (0V) ...

Page 3

FUNCTIONAL TABLE BCD INPUTS CODE No ...

Page 4

M54/M74HC42 DC SPECIFICATIONS Test Conditions Symbol Parameter V CC (V) V High Level Input 2.0 IH Voltage 4.5 6.0 V Low Level Input 2.0 IL Voltage 4.5 6.0 V High Level 2 Output Voltage 4.5 V 6.0 V ...

Page 5

SWITCHING CHARACTERISTICS TEST WAVEFORM TEST CIRCUIT I (Opr.) CC INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF SWITCHING CHARACTERISTIC TEST M54/M74HC42 5/10 ...

Page 6

M54/M74HC42 Plastic DIP16 (0.25) MECHANICAL DATA DIM. MIN. a1 0. 6/10 mm TYP. MAX. MIN. 0.020 1.65 0.030 0.5 0.25 20 8.5 2.54 17.78 7.1 5.1 3.3 1.27 ...

Page 7

Ceramic DIP16/1 MECHANICAL DATA mm DIM. MIN. TYP 3.3 E 0.38 e3 17.78 F 2.29 G 0.4 H 1.17 L 0. 7.8 Q inch MAX. MIN. TYP 0.130 0.015 0.700 2.79 ...

Page 8

M54/M74HC42 SO16 (Narrow) MECHANICAL DATA DIM. MIN 0 0. 9 3.8 G 4 8/10 mm TYP. MAX. MIN. 1.75 0.2 0.004 1.65 ...

Page 9

PLCC20 MECHANICAL DATA mm DIM. MIN. TYP. A 9.78 B 8.89 D 4.2 d1 2.54 d2 0.56 E 7.37 e 1.27 e3 5. 1.27 M1 1.14 inch MAX. MIN. TYP. 10.03 0.385 9.04 0.350 4.57 0.165 ...

Page 10

M54/M74HC42 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from ...

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