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Texas Instruments TIL370 Four-Digit Clock/Timer LED Display

Features

These Four-Digit Clock/Timer Numeric Seven-Segment LED Display are intended for use under pulsed conditions by enabling the common cathode of each digit sequentially and enabling the desired Segment anode and Alarm Indicator, Upper Colon Indicator, and Lower Colon Indicator anodes in phase with the character enabling pulse. The pulse rate is kept high enough so that light from each character appears to the eye to be constant. The PM Indicator is accessible with separate anode and cathode terminals for constant on/off operation.

0.5/12.7 mm Characters
Seven-Segment Digits
Continuous Uniform Segments
Wide Viewing Angle
Common-Cathode Configuration for Multiplex Applications
0.6/15.1 mm and 0.8/21.1 mm

Product Options

The TIL370 is a member of a whole portfolio of similar products with different LED colors and different populated LED segments:

  12-Hour Displays 24-Hour Displays
RED TIL364 TIL367 TIL370 TIL373
GREEN TIL365 TIL368 TIL371 TIL374
AMBER TIL366 TIL369 TIL372 TIL375
Segments D1 B & C B & C A - G A - G
Alarm Ind. Yes No Yes No
PM Indicator Yes Yes No No

Please notice that the TIL370 used with the TI-70 and TI-71 sports the PM Indicator, too.

Family Members and Applications

Type Product Digits Comments
TIL370 TI-70, TI-71 .88:88. 4 digits

 

Technical Specifications

Item Min Typ Max Unit Comments
Width 3.190
81.03
3.200
81.28
3.210
81.53
inch
mm
  
Height 1.020
25.91
1.030
26.16
1.040
26.42
inch
mm
  
Depth 0.201
5.11
0.211
5.36
0.221
5.61
inch
mm
 Including Printed Circuit Board
Character
height
  0.500
12.70
  inch
mm
 
Character
width
  0.310
7.87
  inch
mm
 
Character
slant angle
  7.5   degrees   
Indicator
diameter
  0.050
1.27
  inch
mm
 
Character
spacing
  0.600
15.24
  inch
mm
 
Indicator
spacing
  0.400
10.16
  inch
mm
 
Peak Forward
Current
    200 mA  Each Segment or Indicator
 over maximal 16.66 ms
Average Forward
Current
    25 mA  Each Segment or Indicator
Luminous Intensity 240
600
95
240
  µcd  Each Segment at IF = 20 mA
 Each Indicator at IF = 20 mA
Wavelength at
Peak Emission
640 655 680 nm  Spectral bandwidth 20 nm
Static Forward Voltage   1.7 2 V  At IF = 10 mA

Technology

The displays are formed by placing a one-piece reflector assembly within a transparent plastic case which is attached to a printed circuit board that contains the LED chips.

Packaging

The TIL370 uses a 3.2" / 81.28 mm by 1.03 / 26.13 mm rectangular printed circuit board (PCB) with 16 solder tabs with a 0.125 / 3.18 mm pitch arranged on the top.

Pin Configuration

Pin Pol. Function
1 C PM Indicator
2 A PM Indicator
3 A D Segments
4 A C Segments
5 A B Segments
6 A A Segments
7 A E Segments
8 A F Segments
9 A G Segments
10 C Digit 1, Alarm Indicator
11 C Digit 2
12 A H Indicator (Upper Colon)
13 A J Indicator (Lower Colon)
14 C Digit 4, H Indicator
15 A Alarm Indicator
16 C Digit 3, J Indicator
The Anode of the Segments A-G, Alarm Indicator, Upper Colon Indicator, and Lower Colon Indicator and the Cathode of the Digits 1-4 and the Anode and Cathode of the separate PM Indicator are connected to the display in the pictured way. 
horizontal rule

If you have additions to the above datasheet please email: joerg@datamath.org.

Joerg Woerner, October 16, 2021. No reprints without written permission.