DM74ALS520N

DM74ALS520N Datasheet


DM74ALS520<br>• DM74ALS521 8-Bit Comparator

Part Datasheet
DM74ALS520N DM74ALS520N DM74ALS520N (pdf)
Related Parts Information
DM74ALS521WM DM74ALS521WM DM74ALS521WM
DM74ALS520WM DM74ALS520WM DM74ALS520WM
DM74ALS521N DM74ALS521N DM74ALS521N
DM74ALS521WMX DM74ALS521WMX DM74ALS521WMX
DM74ALS520WMX DM74ALS520WMX DM74ALS520WMX
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DM74ALS520
• DM74ALS521 8-Bit Comparator

DM74ALS520
• DM74ALS521 8-Bit Comparator

These comparators perform an “equal to” comparison of two 8-bit words with provision for expansion or external enabling. The matching of the two 8-bit input plus a logic LOW on the EN input produces the output A = B on the DM74ALS520 and DM74ALS521. The DM74ALS520 and DM74ALS521 have totem pole outputs for wire AND cascading. Additionally, the DM74ALS520 is provided with B input pull up termination resistors for analog or switch data.
s Switching specifications at 50 pF s Switching specifications guaranteed over full tempera-
ture and VCC range s Advanced oxide-isolated, ion-implanted Schottky TTL
process s Functionally and pin for pin compatible with LS family
counterpart s Improved output transient handling capability
Ordering Code:
Ordering Code Package Number

Package Description

DM74ALS520WM

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

DM74ALS520N

N20A
20-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide

DM74ALS521WM

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

SM74ALS521N

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

Function Table

Inputs

H = HIGH Logic Level L = LOW Logic Level X = Don't Care

Data A=B

Output

A=B L H
2000 Fairchild Semiconductor Corporation DS006114

DM74ALS520
• DM74ALS521

Logic Diagram

DM74ALS520
• DM74ALS521

Absolute Maximum Ratings Note 1

Supply Voltage Input Voltage Operating Free Air Temperature Range Storage Temperature Range Typical

N Package M Package
7V 0°C to +70°C −65°C to +150°C
62.0°C/W 82.0°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

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

Units

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

Parameter

Conditions

Input Clamp Voltage

VCC = 4.5V, II = −18 mA

HIGH Level

Output Voltage

VCC = 4.5V to 5.5V IOH = −400 µA

VCC − 2

VCC = 4.5V IOH = Max

LOW Level Output Voltage VCC = 4.5V

IOL = 24 mA

Max HIGH

VCC = 5.5V

VIH = 5.5V

Input Current

B Input DM74ALS520

VIH = 7V, All Others
More datasheets: EAHP5630WA0 | A3948SLB | A3948SLBTR | A3948SB | B85321A2363G300 | FQPF18N20V2YDTU | FQPF18N20V2 | FQP18N20V2 | DM74ALS521WM | DM74ALS520WM


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Datasheet ID: DM74ALS520N 513683