M74HC148M1R STMicroelectronics, M74HC148M1R Datasheet

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M74HC148M1R

Manufacturer Part Number
M74HC148M1R
Description
Manufacturer
STMicroelectronics
Datasheet

Specifications of M74HC148M1R

Lead Free Status / RoHS Status
Compliant
DESCRIPTION
The M74HC148 is an high speed CMOS 8 TO 3
LINE PRIORITY ENCODER fabricated with
silicon gate C
The M74HC148 encodes eight data lines to
three-line
circuitry (enable input EI and enable output EO)
PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
HIGH SPEED:
t
LOW POWER DISSIPATION:
I
HIGH NOISE IMMUNITY:
V
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
WIDE OPERATING VOLTAGE RANGE:
V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 148
PD
CC
PLH
OH
NIH
CC
= 16ns (TYP.) at V
= 4 A(MAX.) at T
| = I
(OPR) = 2V to 6V
= V
t
PHL
OL
(4-2-1)
NIL
= 4mA (MIN)
2
MOS technology.
= 28 % V
binary
A
CC
CC
=25°C
(MIN.)
= 6V
(octal).
Cascading
8 TO 3 LINE PRIORITY ENCODER
ORDER CODES
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.
PACKAGE
TSSOP
SOP
DIP
DIP
M74HC148M1R
M74HC148B1R
TUBE
SOP
M74HC148
M74HC148RM13TR
M74HC148TTR
T & R
TSSOP
1/11

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M74HC148M1R Summary of contents

Page 1

... Data inputs are active at the low logic level. All inputs are equipped with protection circuits (octal). Cascading against static discharge and transient excess voltage. M74HC148 DIP SOP TUBE T & R M74HC148B1R M74HC148M1R M74HC148RM13TR M74HC148TTR TSSOP 1/11 ...

Page 2

M74HC148 INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE ...

Page 3

ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Current ...

Page 4

M74HC148 DC SPECIFICATIONS Symbol Parameter V V High Level Input IH Voltage V Low Level Input IL Voltage V High Level Output OH Voltage V Low Level Output OL Voltage I Input Leakage I Current I Quiescent Supply CC Current ...

Page 5

AC ELECTRICAL CHARACTERISTICS (C Symbol Parameter Output Transition TLH THL Time t t Propagation Delay PLH PHL Time (In - A0, A1, A2 Propagation Delay PLH PHL Time (In - EO, GS Propagation ...

Page 6

M74HC148 TEST CIRCUIT C = 50pF or equivalent (includes jig and probe capacitance pulse generator (typically OUT WAVEFORM 1: PROPAGATION DELAY TIMES ,FOR INVERTING AND NON INVERTING OUTPUTS (f=1MHz; 50% duty cycle) ...

Page 7

TYPICAL APPLICATION M74HC148 7/11 ...

Page 8

M74HC148 DIM. MIN. a1 0. 8/11 Plastic DIP-16 (0.25) MECHANICAL DATA mm. TYP MAX. 1.65 0.5 0.25 20 8.5 2.54 17.78 7.1 5.1 3.3 1.27 inch MIN. TYP. ...

Page 9

SO-16 MECHANICAL DATA mm. DIM. MIN 0 0. 9 3.8 G 4 TYP MAX. MIN. 1.75 0.2 0.003 1.65 0.46 0.013 0.25 ...

Page 10

M74HC148 DIM. MIN 0.05 A2 0.8 b 0.19 c 0.09 D 4.9 E 6 0° PIN 1 IDENTIFICATION 1 10/11 TSSOP16 MECHANICAL DATA mm. TYP MAX. 1.2 0.15 ...

Page 11

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied ...

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