M74HC42B1R 데이터 시트보기 (PDF) - STMicroelectronics

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M74HC42B1R

BCD TO DECIMAL DECODER

STMicroelectronics 

M74HC42

BCD TO DECIMAL DECODER

s HIGH SPEED :

tPD = 14ns (TYP.) at VCC = 6V

s LOW POWER DISSIPATION:

ICC =4µA(MAX.) at TA=25°C

s HIGH NOISE IMMUNITY:

VNIH = VNIL = 28 % VCC (MIN.)

s SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 4mA (MIN)

s BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

s WIDE OPERATING VOLTAGE RANGE:

VCC (OPR) = 2V to 6V

s PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 42

DESCRIPTION

The M74HC42 is an high speed CMOS BCD TO

DECIMAL DECODER fabricated with silicon gate

C2MOS technology.

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 LINE

DIP

SOP

TSSOP

ORDER CODES

PACKAGE

TUBE

DIP

SOP

TSSOP

M74HC42B1R

M74HC42M1R

T&R

M74HC42RM13TR

M74HC42TTR

DECODER, when the D input is assigned as a

disable input. This device is useful for code

conversion, address decoding, memory selection,

demultiplexing, or readout decoding.

All inputs are equipped with protection circuits

against static discharge and transient excess

voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

July 2001

1/9

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