DM74ALS241AWMX

DM74ALS241AWMX Datasheet


DM74ALS240A, DM74ALS241A Octal 3-STATE Bus Driver

Part Datasheet
DM74ALS241AWMX DM74ALS241AWMX DM74ALS241AWMX (pdf)
Related Parts Information
DM74ALS241AWM DM74ALS241AWM DM74ALS241AWM
DM74ALS241AN DM74ALS241AN DM74ALS241AN
DM74ALS240AWM DM74ALS240AWM DM74ALS240AWM
DM74ALS240AN DM74ALS240AN DM74ALS240AN
DM74ALS240ASJX DM74ALS240ASJX DM74ALS240ASJX
DM74ALS240ASJ DM74ALS240ASJ DM74ALS240ASJ
DM74ALS240AWMX DM74ALS240AWMX DM74ALS240AWMX
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DM74ALS240A, DM74ALS241A Octal 3-STATE Bus Driver

DM74ALS240A, DM74ALS241A Octal 3-STATE Bus Driver

September 2007
• Advanced low power oxide-isolated ion-implanted Schottky TTL process
• Functional and pin compatible with the DM74LS counterpart
• Improved switching performance with less power dissipation compared with the DM74LS counterpart
• Switching response specified into and 50pF load
• Switching response specifications guaranteed over full temperature and VCC supply range
• PNP input design reduces input loading
• Low level drive current 74ALS = 24mA

These octal 3-STATE bus drivers are designed to provide the designer with flexibility in implementing a bus interface with memory, microprocessor, or communication systems. The output 3-STATE gating control is organized into two separate groups of four buffers. The DM74ALS240A control inputs symmetrically enable the respective outputs when set logic LOW, while the DM74ALS241A has complementary enable gating. The 3-STATE circuitry contains a feature that maintains the buffer outputs in 3-STATE high impedance state during power supply ramp-up or ramp-down. This eliminates bus glitching problems that arise during power-up and power-down.
Ordering Information

Order Number

Package Number

Package Description

DM74ALS240AWM DM74ALS240ASJ DM74ALS240AN DM74ALS241AWM

M20B M20D N20A M20B
20-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide 20-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide 20-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide 20-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

DM74ALS240A

DM74ALS241A

DM74ALS240A, DM74ALS241A Octal 3-STATE Bus Driver

Function Tables

DM74ALS240A

Input

Output Y H L Z

Logic Diagrams

DM74ALS240A

Input
1G 1A

DM74ALS241A

Output Y L H Z

Input
2G 2A

Output Y L H Z

DM74ALS241A
1986 Fairchild Semiconductor Corporation

DM74ALS240A, DM74ALS241A Octal 3-STATE Bus Driver

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only.

Symbol VCC VI

TA TSTG JA

Parameter Supply Voltage Input Voltage Applied to Disabled Output Operating Free Air Temperature Range Storage Temperature Range Typical Thermal Resistance

N Package M Package

Rating 7V
5.5V 0°C to +70°C to +150°C
60.5°C/W 79.8°C/W

Recommended Operating Conditions

The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings.

VCC VIH VIL IOH IOL TA

Parameter Supply Voltage HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Current LOW Level Output Current Operating Free Air Temperature

Min. 2

Typ. 5

Max.
24 70

Units V mA °C
1986 Fairchild Semiconductor Corporation

DM74ALS240A, DM74ALS241A Octal 3-STATE Bus Driver
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Datasheet ID: DM74ALS241AWMX 513667