TIL311
HEXADECIMAL DISPLAY WITH LOGIC
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TAOS058 − OCTOBER 2007
D Internal TTL MSI IC with Latch, Decoder,
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PACKAGE P
14-LEAD PDIP
(BOTTOM VIEW)
and Driver
0.300-Inch (7,62-mm) Character Height
Wide Viewing Angle
High Brightness
Left-and-Right-Hand Decimals
Constant-Current Drive for Hexadecimal
Characters
Separate LED and Logic Power Supplies
May Be Used
Logic Supply 14
1 LED Supply
Data Input C 13
2 Data Input B
Data Input D 12
3 Data Input A
omitted 11
4 Left Decimal
Right Decimal 10
5 Strobe Input
D Operates from 5-V Supply
D Easy System Interface
D RoHS Compliant
omitted 9
6 omitted
Blanking Input 8
7 Ground
Description
The TIL311 is a single-digit LED hexadecimal display with internal four-bit latch, decoder, and constant-current
LED drivers in a 14-pin dual-in-line-package. Hexadecimal characters are formed by a 4 × 7 array of red
light-emitting-diodes that are illuminated in a modified seven-segment configuration. The device includes
right-hand and left-hand externally driven decimal points.
Functional Block Diagram
LED
Supply
Logic
Supply
A
Latch
Data
Inputs
B
4-Bit
Latch
Constant
Current
Driver
Decoder
C
D
Latch Strobe
Input
Blanking
Input
Left Decimal
Point Cathode
The LUMENOLOGY r Company
Right Decimal
Point Cathode
Copyright E 2007, TAOS Inc.
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Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) 673-0759
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www.taosinc.com
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