74ACT138 STMicroelectronics, 74ACT138 Datasheet

no-image

74ACT138

Manufacturer Part Number
74ACT138
Description
3 TO 8 LINE DECODER INVERTING
Manufacturer
STMicroelectronics
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
74ACT138
Manufacturer:
ST
Quantity:
2
Part Number:
74ACT138
Manufacturer:
ST
0
Part Number:
74ACT138(EIAJ)
Manufacturer:
TOSHIBA
Quantity:
117
Part Number:
74ACT138B
Manufacturer:
ST
0
Part Number:
74ACT138DTR2
Manufacturer:
HIT
Quantity:
42
Part Number:
74ACT138M
Manufacturer:
ST
0
Part Number:
74ACT138MTR
Manufacturer:
ST
0
Part Number:
74ACT138PC
Manufacturer:
NSC
Quantity:
631
Part Number:
74ACT138PC
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
Part Number:
74ACT138RM13TR
Manufacturer:
ST
0
Part Number:
74ACT138SCX
Manufacturer:
LG
Quantity:
19
Part Number:
74ACT138SCX
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
© 1999 Fairchild Semiconductor Corporation
74ACT1284SC
74ACT1284MSA
74ACT1284MTC
74ACT1284
IEEE 1284 Transceiver
General Description
The 74ACT1284 contains four non-inverting bidirectional
buffers and three non-inverting buffers with open Drain out-
puts and high drive capability on the B Ports. It is intended
to provide a standard signaling method for a bi-direction
parallel peripheral in an Extended Capabilities Port mode
(ECP).
The HD (active HIGH) input pin enables the B Ports to
switch from open Drain to a high drive totem pole output,
capable of sourcing 14 mA on all seven buffers. The DIR
input determines the direction of data flow on the bidirec-
tional buffers. DIR (active HIGH) enables data flow from A
Ports to B Ports. DIR (active LOW) enables data flow from
B Ports to A Ports.
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbol
Pin Descriptions
FACT
Order Number
HD
DIR
A
B
A
B
1
1
5
5
Pin Names
- A
- B
- A
- B
is a trademark of Fairchild Semiconductor Corporation.
4
4
7
7
Package Number
High Drive Enable input (Active HIGH)
Direction Control Input
Side A Inputs or Outputs
Side B Inputs or Outputs
Side A Inputs
Side B Outputs
MSA20
MTC20
M20B
Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
DS011683
Features
Connection Diagram
TTL-compatible inputs
A Ports have standard 4 mA totem pole outputs
Typical input hysteresis of 0.5V
B Port high drive source/sink capability of 14 mA
Bidirectional non-inverting buffers
Supports IEEE P1284 Level 1 and Level 2 signaling
standards for bidirectional parallel communications
between personal computers and printing peripherals
B Port outputs in High Impedance mode during power
down
Guaranteed 4000V minimum ESD protection
Package Description
June 1996
Revised November 1999
www.fairchildsemi.com

Related parts for 74ACT138

74ACT138 Summary of contents

Page 1

IEEE 1284 Transceiver General Description The 74ACT1284 contains four non-inverting bidirectional buffers and three non-inverting buffers with open Drain out- puts and high drive capability on the B Ports intended to provide a standard signaling method for ...

Page 2

Truth Table Inputs DIR Note Open Drain Outputs 5 7 Note Open Drain Outputs 1 7 Logic Diagram www.fairchildsemi.com Outputs Data to A ...

Page 3

Absolute Maximum Ratings (Note 4) Supply Voltage ( Input Diode Current ( 0. 0. Input Voltage ( Side 0. Input Voltage (V ...

Page 4

AC Electrical Characteristics Symbol Parameter PHL PLH PHL ...

Page 5

AC Loading and Waveforms FIGURE Direction Test Load and Waveforms FIGURE 2. B Output Test Load and Waveforms FIGURE Direction Test Load and Waveforms for Outputs A FIGURE ...

Page 6

Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide www.fairchildsemi.com Package Number M20B Package Number MSA20 6 ...

Page 7

Physical Dimensions Physical Dimensions inches (millimeters) unless otherwise noted (Continued) inches (millimeters) unless otherwise noted (Continued) 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Fairchild does not assume any responsibility for use of any circuitry described, no ...

Related keywords