DM74ALS21AN

DM74ALS21AN Datasheet

DM74ALS21A Dual 4-Input AND Gate

Part	Datasheet
DM74ALS21AN	DM74ALS21AN (pdf)

Related Parts	Information
DM74ALS21AM	DM74ALS21AM
DM74ALS21AMX	DM74ALS21AMX

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DM74ALS21A Dual 4-Input AND Gate DM74ALS21A Dual 4-Input AND Gate May 2007 • Switching specifications at 50pF • Switching specifications guaranteed over full temperature and VCC range • Advanced oxide-isolated, ion-implanted Schottky TTL process • Functionally and pin for pin compatible with Schottky and low power Schottky TTL counterpart • Improved AC performance over Schottky and low power Schottky counterparts This device contains two independent gates, each of which performs the logic AND function. Ordering Information Package Order Number Package Description DM74ALS21AM M14A 14-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Function Table Y = ABCD Inputs H = HIGH Logic Level L = LOW Logic Level X = Either LOW or HIGH Logic Level Output Y L H DM74ALS21A Dual 4-Input AND Gate 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. VCC VI TA TSTG JA Parameter Supply Voltage Input Voltage Operating Free Air Temperature Range Storage Temperature Range Typical Thermal Resistance Rating 7V 0°C to +70°C to +150°C 116.0°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 Free Air Operating Temperature Min. 2 Nom. 5 Max. Units V mA °C Electrical Characteristics Over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C. Parameter Conditions Min. Typ. Max. Units VIK Input Clamp Voltage VCC = 4.5V, II = VOH HIGH Level Output Voltage IOH = VCC = 4.5V to 5.5V VCC 2 VOL LOW Level Output Voltage VCC = 4.5V, IOL = 8mA Input Current Max Input Voltage VCC = 5.5V, VIH = 7V IIH HIGH Level Input Current VCC = 5.5V, VIH = 2.7V 20 µA IIL LOW Level Input Current VCC = 5.5V, VIL = 0.4V IO Output Drive Current

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DM74ALS21A Dual 4-Input AND Gate

DM74ALS21A Dual 4-Input AND Gate

May 2007
• Switching specifications at 50pF
• Switching specifications guaranteed over full
temperature and VCC range
• Advanced oxide-isolated, ion-implanted Schottky TTL
process
• Functionally and pin for pin compatible with Schottky
and low power Schottky TTL counterpart
• Improved AC performance over Schottky and low
power Schottky counterparts

This device contains two independent gates, each of which performs the logic AND function.
Ordering Information

Package Order Number

Package Description

DM74ALS21AM

M14A 14-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Function Table

Y = ABCD

Inputs

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

Output Y L H

DM74ALS21A Dual 4-Input AND Gate

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.

VCC VI TA TSTG JA

Parameter Supply Voltage Input Voltage Operating Free Air Temperature Range Storage Temperature Range Typical Thermal Resistance

Rating 7V
0°C to +70°C to +150°C
116.0°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 Free Air Operating Temperature

Min. 2

Nom. 5

Max.

Units V mA °C

Electrical Characteristics

Over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C.

Parameter

Conditions

Min. Typ. Max. Units

VIK Input Clamp Voltage

VCC = 4.5V, II =

VOH HIGH Level Output Voltage

IOH = VCC = 4.5V to 5.5V VCC 2

VOL LOW Level Output Voltage

VCC = 4.5V, IOL = 8mA

Input Current Max Input Voltage VCC = 5.5V, VIH = 7V

IIH HIGH Level Input Current

VCC = 5.5V, VIH = 2.7V
20 µA

IIL LOW Level Input Current

VCC = 5.5V, VIL = 0.4V

IO Output Drive Current

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Datasheet ID: DM74ALS21AN 513666