m74hc147m1r STMicroelectronics, m74hc147m1r Datasheet

m74hc147m1r

Manufacturer Part Number

m74hc147m1r

Description

10 To 4 Line Priority Encoder

Manufacturer

STMicroelectronics

Datasheet

1.M74HC147M1R.pdf (10 pages)

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DESCRIPTION

The M54/74HC147 is a high speed CMOS 10 TO 4

LINE PRIORITY ENCODER fabricated in silicon

gate C

speed performance of LSTTL combined with true

CMOS low power consumption.

This device features priority encoding of the inputs

to ensure that only the highest order data line is en-

coded. Nine input lines are encoded to a four line

BCD output. The implied decimal zero condition re-

quires no input condition as zero is encoded when

all nine data lines are at high logic level. All data input

and outputs are active at the low logic level. All in-

puts are equipped with protection circuits against

static discharge and transient excess voltage.

INPUT AND OUTPUT EQUIVALENT CIRCUIT

October 1992

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 54/74LS147

PLH

NIH

= 15 ns (TYP.) at V

= 4 A (MAX.) at T

= t

(OPR) = 2 V to 6 V

= V

MOS technology. It has the same high

= I

PHL

NIL

= 28 % V

= 4 mA (MIN.)

(MIN.)

= 25 C

= 5 V

10 TO 4 LINE PRIORITY ENCODER

NC =

No Internal

Connecti o n

(Plastic Package)

(Micro Package)

M54HC147F1R

M74HC147B1R

PIN CONNECTIONS (top view)

M1R

B1R

ORDER CODES :

M74HC147

M54HC147

M74HC147M1R

M74HC147C1R

(Ceramic Package)

(Chip Carrier)

C1R

F1R

1/10

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m74hc147m1r Summary of contents

Page 1

... INPUT AND OUTPUT EQUIVALENT CIRCUIT October 1992 LINE PRIORITY ENCODER B1R (Plastic Package) M1R (Micro Package) ORDER CODES : M54HC147F1R M74HC147B1R PIN CONNECTIONS (top view Internal Connecti o n M54HC147 M74HC147 F1R (Ceramic Package) C1R (Chip Carrier) M74HC147M1R M74HC147C1R 1/10 ...

Page 2

M54/M74HC147 TRUTH TABLE INPUTS ...

Page 3

PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION BCD Address Outputs (Active LOW) 11, 12, 13 Decimal Data Inputs (Active LOW Not ...

Page 4

M54/M74HC147 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

AC ELECTRICAL CHARACTERISTICS (C Test Conditions Symbol Parameter V CC (V) t Output Transition 2.0 TLH t Time THL 4.5 6.0 t Propagation 2.0 PLH t Delay Time PHL 4.5 6.0 C Input Capacitance IN C (*) Power Dissipation PD ...

Page 6

M54/M74HC147 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/M74HC147 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/M74HC147 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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