DM74ALS640AWM

DM74ALS640AWM Datasheet


DM74ALS640A Inverting Octal Bus Transceiver

Part Datasheet
DM74ALS640AWM DM74ALS640AWM DM74ALS640AWM (pdf)
Related Parts Information
DM74ALS640AWMX DM74ALS640AWMX DM74ALS640AWMX
DM74ALS640AN DM74ALS640AN DM74ALS640AN
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DM74ALS640A Inverting Octal Bus Transceiver

DM74ALS640A Inverting Octal Bus Transceiver

This inverting octal bus transceiver is designed for asynchronous two-way communication between data busses. This device transmits data from the A bus to the B bus or from the B bus to the A bus depending upon the level at the direction control DIR input. The enable input G can be used to disable the device so the busses are effectively isolated.
s Advanced Oxide-isolated Ion-implanted Schottky TTL process
s Switching performance is guaranteed over full temperature and VCC supply range
s Switching performance specified at 50 pF s PNP input design reduces input loading
Ordering Code:

Order Number Package Number

Package Description

DM74ALS640AWM

M20B
20-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide

DM74ALS640AN

N20A
20-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Logic Diagram

Function Table

L = LOW Logic Level H = HIGH Logic Level X = Either LOW or HIGH Logic Level

Control

Inputs

Operation

B Data to A Bus A Data to B Bus

Isolation
2000 Fairchild Semiconductor Corporation DS008640

DM74ALS640A

Absolute Maximum Ratings Note 1

Supply Voltage Input Voltage

Control Inputs I/O ports Operating Free Air Temperature Range Storage Temperature Range Typical N Package M Package
7V 5.5V 0°C to +70°C −65°C to +150°C
53.0°C/W 72.0°C/W

Note 1 The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation.

Recommended Operating Conditions

Parameter

Supply Voltage

HIGH Level Input Voltage

LOW Level Input Voltage

HIGH Level Output Current

LOW Level Output Current

Operating Free Air Temperature Range

Electrical Characteristics

Over Recommended Free Air Temperature Range

Parameter

Test Conditions

Input Clamp Voltage

HIGH Level

Output Voltage

LOW Level

Output Voltage

Input Current at Maximum

Input Voltage

HIGH Level Input Current

LOW Level Input Current

Output Drive Current

Supply Current
More datasheets: 22-23B/R6GTBTW-C01/2C | M213402 SL002 | M213402 SL005 | M213402 SL001 | CT-1040 | TSWB3NC LFS | DM74LS132N | 10314 | DM74ALS640AWMX | DM74ALS640AN


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Datasheet ID: DM74ALS640AWM 513696