7485 4-bit Magnitude Comparator

SKU: 7485

EGP25.00

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Product Specification

Weight 0.00 g
Description
Features

Compares 4-bit Binary or BCD Codes and Outputs Greater, Less Than or Equal

Outputs Directly Interface to CMOS, NMOS and TTL

Large Operating Voltage Range

Wide Operating Conditions

Pin Layout
TTL 7485 Pin Layout

Pin Description
Pin Number Description
1 B3 Input
2 A
3 A=B Input
4 A>B Input
5 A>B Output
6 A=B Output
7 A
8 Ground
9 B0 Input
10 A0 Input
11 B1 Input
12 A1 Input
13 A2 Input
14 B2 Input
15 A3 Input
16 Vcc – Positive Supply
Dimensional Drawing
DIP16 IC Dimensional Drawing
 

Technical Data

Absolute Maximum Ratings

Supply Voltage

7V

Input Voltage

5.5V

Operating Free Air Temperature

0°C to +70°C

Storage Temperature Range

-65°C to +150°C

Recommended Operating Conditions

Symbol Parameter Min Typ Max Units
Vcc Supply Voltage 4.75 5 5.25 V
Vih HIGH Level Input Voltage 2     V
Vil LOW Level Input Voltage     0.8 V
Ioh HIGH Level Output Current     -0.4 mA
Iol LOW Level Output Current     16 mA
Ta Free Air Operating Temperature 0   70 °C

Electrical Characteristics

Symbol Parameter Conditions Min Typ Max Units
Vi Input Clamp Voltage Vcc=Min Ii=-12mA     -1.5 V
Voh HIGH Level Output Voltage Vcc=Min Ioh=MAX Vil=MAX 2.4 3.4   V
Vol LOW Level Output Voltage Vcc=Min Iol=MAX Vih=MAX   0.2 0.4 V
Ii Input Current@MAX Input Voltage Vcc=Max Vi=5.5V     1 mA
Iih HIGH Level Input Current Vcc=Max Vi=2.4V     40 µA
Iil LOW Level Input Current Vcc=Max Vi=0.4V     -1.6 mA
Ios Short Circuit Output Current Vcc=Max -18   -55 mA
Icch Supply Current with Outputs HIGH Vcc=Max   4 8 mA
Iccl Supply Current with Outputs LOW Vcc=Max   12 22 mA

Switching Characteristics at Vcc=5V,Ta=25°C

Symbol Parameter Conditions Min Typ Max Units
tplh Propagation Delay Time LOW-to-HIGH Level Output Cl=15pF Rl=400R     22 nS
tphl Propagation Delay Time HIGH-to-LOW Level Output Cl=15pF Rl=400R     15 nS
 
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