M74HC4028C1R View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M74HC4028C1R

BCD TO DECIMAL DECODER

STMicroelectronics 

. HIGH SPEED

tPD = 18 ns (TYP.) AT VCC = 5 V

. LOW POWER DISSIPATION

ICC = 4 µA (MAX.) AT TA = 25 °C

. HIGH NOISE IMMUNITY

VNIH = VNIL = 28 % VCC (MIN.)

. OUTPUT DRIVE CAPABILITY

10 LSTTL LOADS

. SYMMETRICAL OUTPUT IMPEDANCE

|IOH| = IOL = 4 mA (MIN.)

. BALANCED PROPAGATION DELAYS

tPLH = tPHL

. WIDE OPERATING VOLTAGE RANGE

VCC (OPR) = 2 V TO 6 V

. PIN AND FUNCTION COMPATIBLE

WITH 4028B

M54HC4028

M74HC4028

BCD TO DECIMAL DECODER

B1R

(Plastic Package)

F1R

(Ceramic Package)

M 1R

(Micro Package)

C1R

(Chip Carrier)

ORDER CODES :

M54HC4028F1R M74HC4028M1R

M74HC4028B1R M74HC4028C1R

PIN CONNECTIONS (top view)

DESCRIPTION

The M54/74HC4028 is a high speed CMOS BCD-

TO-DECIMAL DECODER fabricated in silicon gate

C2MOS technology. It has the same high speed per-

formance of LSTTL combined with true CMOS low

power consumption. A BCD code applied to the four

inputs (A to D) provides a high level at the selected

one of the decimal decoded outputs. An illegal BCD

code such as eleven to fifteen gives a low level at

all outputs. The device also can be used as 3-TO-

8-LINE DECODER, when D input is assigned as a

disable input. The device is useful for code conver-

sion, address decoding, memory selection, demulti-

plexing, or read out decoding.

All inputs are equipped with protection circuits

against static discharge and transient excess volt-

age.

NC =

No Internal

Connection

October 1992

1/10

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