74F646 Philips, 74F646 Datasheet

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74F646

Manufacturer Part Number
74F646
Description
Octal transceiver/register / non-inverting 3-State
Manufacturer
Philips
Datasheet

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Philips
Semiconductors
Product specification
IC15 Data Handbook
74F646, 74F646A
Octal transceiver/register, non-inverting
(3-State)
74F648, 74F648A
Octal transceiver/register, inverting
(3-State)
INTEGRATED CIRCUITS
1990 Sep 25

Related parts for 74F646

74F646 Summary of contents

Page 1

... Octal transceiver/register, non-inverting (3-State) 74F648, 74F648A Octal transceiver/register, inverting (3-State) Product specification IC15 Data Handbook Philips Semiconductors INTEGRATED CIRCUITS 1990 Sep 25 ...

Page 2

... High impedance base inputs for reduced loading ( high and low states) Independent registers for A and B buses Multiplexed real-time and stored data Choice of non-inverting and inverting data paths Controlled ramp outputs for 74F646A/74F648A 3-state outputs 300 mil wide 24-pin slim dip package TYPE 74F646/74F648 ...

Page 3

... SBA 1 CPAB 2 SAB Pin 24 CC GND = Pin 12 3 Product specification 74F646/A/74F648/A 74F646/646A G3 3 EN1 [BA] 3 EN2 [AB SF00388 74F646/646A channels other channels SF00393 20 B0 ...

Page 4

... LOGIC DIAGRAM DIR 23 CPBA 22 SBA 1 CPAB 2 SAB Product specification 74F646/A/74F648/A 74F648/648A G3 3 EN1 [BA] 3 EN2 [AB SF00391 74F648/648A channels ...

Page 5

... Output Real time A data to B bus X Input Output Stored A data to B bus PARAMETER 74F646A, 74F648A 74F646, 74F648 74F646A, 74F648A 74F646, 74F648 5 Product specification 74F646/A/74F648/A OPERATING MODE 74F648/74F648A Store A, B unspecified* Store B, A unspecified* Store A and B data Isolation, hold storage Real time B data to A bus ...

Page 6

... Philips Semiconductors Transceivers/registers The following examples demonstrate the four fundamental bus–management functions that can be performed with the 74F646/646A and 74F648/648A. The select pins determine whether BUS MANAGEMENT FUNCTIONS REAL TIME BUS TRANSFER REAL TIME BUS TRANSFER BUS B TO BUS A BUS A ...

Page 7

... O 1990 Sep 25 TEST CONDITIONS V = MIN –3mA MAX MIN IH –15mA V = MIN, CC All I = 48mA MAX, IL 74F646/74F648 only V = MIN I = 64mA MIN others V = 0.0V 7. A0–A7, B0– MAX 5. OE, DIR, CPAB MAX 2. ...

Page 8

... Philips Semiconductors Transceivers/registers AC ELECTRICAL CHARACTERISTICS FOR 74F646 SYMBOL PARAMETER f Maximum clock frequency max t Propagation delay PLH t CPAB or CPBA PHL t Propagation delay PLH PHL t Propagation delay PLH t SAB or SBA PHL t Output enable time PZH ...

Page 9

... Waveform 6 6.0 8.5 12.0 Waveform 5 5.0 9.0 12.5 Waveform 6 5.0 9.0 12 +25 C amb TEST CONDITION V = +5. 50pF 500 L L MIN TYP MAX 4.0 Waveform 4 4.0 0 Waveform 4 0 3.5 Waveform 1 6.5 9 Product specification 74F646/A/74F648/A LIMITS +70 C amb V = +5.0V 10% UNIT 50pF 500 L L MIN MAX 90 MHz 4.5 11.0 ns 4.5 11.0 2.5 9.5 ns 3.5 9.5 4.5 10.5 ns 4.5 9.5 4.5 11.0 ns 5.5 12 ...

Page 10

... Philips Semiconductors Transceivers/registers AC ELECTRICAL CHARACTERISTICS FOR 74F646A SYMBOL PARAMETER f Maximum clock frequency max t Propagation delay PLH t CPAB or CPBA PHL t Propagation delay PLH PHL t Propagation delay PLH t SAB or SBA PHL t Output enable time PZH ...

Page 11

... MIN 4.0 Waveform 4 4.0 0 Waveform 4 0 3.5 Waveform 1 3 PLH SF00394 Waveform 2. Propagation delay for and 11 Product specification 74F646/A/74F648/A LIMITS = + +70 C amb = +5. +5.0V 10% UNIT CC = 500 C = 50pF 500 TYP MAX MIN MAX ...

Page 12

... NEGATIVE PULSE 10 90% POSITIVE V PULSE M 10% INPUT PULSE REQUIREMENTS family amplitude of OUT 74F 3.0V 12 Product specification 74F646/A/74F648 PZH PHZ V M SF00398 PZL PLZ SF00399 disable time from low level ...

Page 13

... Philips Semiconductors Transceivers/registers DIP24: plastic dual in-line package; 24 leads (300 mil) 1990 Sep 25 74F646/A/74F648/A 13 Product specification SOT222-1 ...

Page 14

... Philips Semiconductors Transceivers/registers SO24: plastic small outline package; 24 leads; body width 7.5 mm 1990 Sep 25 74F646/A/74F648/A 14 Product specification SOT137-1 ...

Page 15

... Philips Semiconductors Transceivers/registers 1990 Sep 25 74F646/A/74F648/A NOTES 15 Product specification ...

Page 16

... Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381 Philips Semiconductors yyyy mmm dd [1] Copyright Philips Electronics North America Corporation 1998 print code Document order number: 16 Product specification 74F646/A/74F648/A All rights reserved. Printed in U.S.A. Date of release: 10-98 9397-750-05151 ...

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