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DM74AS245N

Description
IC TXRX NON-INVERT 5.5V 20DIP
Categorysemiconductor    logic   
File Size63KB,5 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Environmental Compliance
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DM74AS245N Overview

IC TXRX NON-INVERT 5.5V 20DIP

DM74AS245N Parametric

Parameter NameAttribute value
logical typetransceiver, non-inverting
Number of components1
bits per component8
input type-
Output typeThree states
Current - output high, low15mA,48mA
Voltage - Power4.5 V ~ 5.5 V
Operating temperature0°C ~ 70°C(TA)
Installation typeThrough hole
Package/casing20-DIP(0.300",7.62mm)
Supplier device packaging20-PDIP
DM74AS245 Octal Bus Transceiver with 3-STATE Outputs
October 1986
Revised February 2000
DM74AS245
Octal Bus Transceiver with 3-STATE Outputs
General Description
This advanced Schottky device contains 8 pairs of
3-STATE logic elements configured as octal bus transceiv-
ers. These circuits are designed for use in memory, micro-
processor systems and in asynchronous bidirectional data
buses. Two way communication between buses is con-
trolled by the (DIR) input. Data transmits either from the A
bus to the B bus or from the B bus to the A bus. Both the
driver and receiver outputs can be disabled via the (G)
enable input which causes outputs to enter the high imped-
ance mode so that the buses are effectively isolated.
Features
s
Advanced oxide-isolated, ion-implanted Schottky
TTL process
s
Non-inverting logic output
s
3-STATE outputs independently controlled on
A and B buses
s
Low output impedance to drive terminated transmission
lines to 133Ω
s
Switching response specified into 500Ω/50 pF
s
Specified to interface with CMOS at V
OH
=
V
CC
2V
s
PNP inputs reduce input loading
s
Switching specifications guaranteed over full
temperature and V
CC
range
Ordering Code:
Order Number
DM74AS245WM
DM74AS245SJ
DM74AS245N
Package Number
M20B
M20D
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Control
Inputs
G
L
L
H
DIR
L
H
X
B Data to A Bus
A Data to B Bus
Hi-Z
Operation
© 2000 Fairchild Semiconductor Corporation
DS006299
www.fairchildsemi.com

DM74AS245N Related Products

DM74AS245N DM74AS245WM DM74AS245WMX DM74AS245SJX
Description IC TXRX NON-INVERT 5.5V 20DIP IC TXRX NON-INVERT 5.5V 20SOIC IC TXRX NON-INVERT 5.5V 20SOIC IC TXRX NON-INVERT 5.5V 20SOP
logical type transceiver, non-inverting transceiver, non-inverting transceiver, non-inverting transceiver, non-inverting
Number of components 1 1 1 1
bits per component 8 8 8 8
Output type Three states Three states Three states Three states
Current - output high, low 15mA,48mA 15mA,48mA 15mA,48mA 15mA,48mA
Voltage - Power 4.5 V ~ 5.5 V 4.5 V ~ 5.5 V 4.5 V ~ 5.5 V 4.5 V ~ 5.5 V
Operating temperature 0°C ~ 70°C(TA) 0°C ~ 70°C(TA) 0°C ~ 70°C(TA) 0°C ~ 70°C(TA)
Installation type Through hole surface mount surface mount surface mount
Package/casing 20-DIP(0.300",7.62mm) 20-SOIC (0.295", 7.50mm wide) 20-SOIC (0.295", 7.50mm wide) 20-SOIC (0.209", 5.30mm wide)
Supplier device packaging 20-PDIP 20-SOIC 20-SOIC 20-SOP
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