M54HC148D1 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M54HC148D1

RAD-HARD 8 TO 3 LINE PRIORITY ENCODER

STMicroelectronics 

M54HC148

RAD-HARD 8 TO 3 LINE PRIORITY ENCODER

s HIGH SPEED:

tPD = 16ns (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

54 SERIES 148

s SPACE GRADE-1: ESA SCC QUALIFIED

s 50 krad QUALIFIED, 100 krad AVAILABLE ON

REQUEST

s NO SEL UNDER HIGH LET HEAVY IONS

IRRADIATION

s DEVICE FULLY COMPLIANT WITH

SCC-9410-017

DESCRIPTION

The M54HC148 is an high speed CMOS 8 TO 3

LINE PRIORITY ENCODER fabricated with

silicon gate C2MOS technology.

DILC-16

FPC-16

ORDER CODES

PACKAGE

FM

DILC

FPC

M54HC148D

M54HC148K

EM

M54HC148D1

M54HC148K1

The M54HC148 encodes eight data lines to

three-line (4-2-1) binary (octal). Cascading

circuitry (enable input EI and enable output EO)

has been provided to allow octal expansion

without the need for external circuitry. Data inputs

are active at the low logic level.

All inputs are equipped with protection circuits

against static discharge and transient excess

voltage.

PIN CONNECTION

March 2004

1/10

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