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TIL311A Datasheet

Part NameDescriptionManufacturer
TIL311A Hexadecimal display with integral TTL circuit to accept store, and display 4-bit binary data TI
Texas Instruments TI
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SOLID-STATE HEXADECIMAL DISPLAY WITH INTEGRAL TTL CIRCUIT TO ACCEPT, STORE, AND DISPLAY 4-BIT BINARY DATA

description
This hexadecimal display contains a four-bit latch, decoder, driver, and 4 × 7 light-emitting-diode (LED) character with two externally driven decimal points in a 14-pin package. A description of the input functions of this device follows.
The LED driver outputs are designed to maintain a relatively constant on-level current of approximately 5 mA through each LED that forms the hexadecimal character. This current is virtually independent of the LED supply voltage within the recommended operating conditions. Drive current varies slightly with changes in logic supply voltage resulting in a change in luminous intensity as shown in Figure 2. This change will not be noticeable to the eye. The decimal point anodes are connected to the LED supply; the cathodes are connected to external pins. Since there is no current limiting built into the decimal point circuits, limiting must be provided externally if the decimal points are used.

● 0.300-Inch (7,62-mm) Character Height
● High Brightness
● Left-and-Right-Hand Decimals
● Separate LED and Logic Power Supplies May Be Used
● Wide Viewing Angle
● Internal TTL MSI Chip With Latch, Decoder, and Driver
● Operates from 5-V Supply
● Constant-Current Drive for Hexadecimal Characters
● Easy System Interface

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