Table 1. Device summary
1 STLED316S functional and application diagram
Figure 1. STLED316S functional diagram
Figure 2. STLED316S application diagram
2 Pin description
Figure 3. STLED316S pin connection
Table 2. Pin description
3 STLED316S functional description
3.1 Low power mode of operation
3.2 Serial interface
3.3 Initial power up
3.4 Display types
Table 3. Seven segment display with dot point and common-anode LED panel
3.5 Keyscan
3.6 Discrete LED outputs
3.7 Power on reset and soft-start
3.8 LED drivers
3.9 Interrupt
3.10 Operating the device with 3.3 V interface voltages
4 Maximum rating
Table 4. Absolute maximum ratings (all voltages are referenced to GND)
4.1 Thermal data
Table 5. Thermal data
5 Recommended operating conditions
5.1 DC electrical characteristics
Table 6. DC electrical characteristics (TA = -40 to +85 C, VCC = 5.0 V ± 10%, GND = 0 V)
5.2 Power consumption estimation
5.3 Capacitance
Table 7. Capacitance (TA = 25 C, f = 1 MHz)
5.4 Power supply characteristics
Table 8. Power supply characteristics (TA = -40 to +85 C)
5.5 Dynamic switching characteristics
Table 9. Dynamic switching characteristics (TA = -40 to +85 C, VCC = 5.0 V ± 10%, GND = 0.0 V, typical values are at 25 C)
5.6 Timing characteristics
Table 10. Timing characteristics (TA = -40 to +85 C, VCC = 5.0 V ± 10%, GND = 0.0 V, Typical values are at 25 C)
5.7 ESD performance
Table 11. ESD performance
6 Key-scan & display cycle
7 Key matrix and key-input data storage ram
Figure 4. Key matrix
8 Commands
8.1 Write command
8.2 Read command
Table 12. Read command
8.3 Device configuration
Table 13. Memory page mapping
Table 14. Digit address mapping
Table 15. LED address mapping
8.3.1 Display setting (maximum number of digits):
8.3.2 Dimming setting (brightness levels):
8.4 Display memory
Table 16. Memory page address
Table 17. 7-segment display address
Table 18. LED display address
9 Key-scanning and display timing
9.1 Serial communication format (reception)
Figure 5. Serial communication format (reception)
9.2 Serial communication format (transmission)
Figure 6. Serial communication format (transmission)
10 Switching characteristics waveform
Figure 7. Switching characteristics waveform
11 Application information
11.1 Graph of ISET against RSET
Figure 8. Graph of ISET against RSET
11.2 Power supply sequencing
11.3 Application diagram
Figure 9. STLED316S application diagram
Table 19. Part list
12 Package mechanical data
Figure 10. SO-24 package outline
Table 20. SO-24 package mechanical data
13 Revision history
Table 21. Document revision history