AS1108PL austriamicrosystems, AS1108PL Datasheet
AS1108PL
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AS1108PL Summary of contents
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... The AS1108 provides several test modes for easy appli- cation debugging. The device is available in a PDIP 20-pin and a SOIC 20- pin package. Figure 1. AS1108 - Typical Application Diagram Micro- processor www.austriamicrosystems.com/LED-Driver-ICs/AS1108 2 Key Features 10MHz SPI-, QSPI-, Microwire-Compatible Serial I/O Individual LED Segment Control Segment Blinking Control (can be synchronized across multiple drivers) ...
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... Pin Descriptions Table 1. Pin Descriptions Pin Number Pin Name 1 DOUT 2 DIN DIG 0:DIG GND 9 LOAD/CSN 10 CLK 11, 12, 13, 14, SEG A:SEG G, 17, 18, 19, 20 SEG DP 15 ISET 16 VDD www.austriamicrosystems.com/LED-Driver-ICs/AS1108 DOUT SEG DIN SEG DIG 0 SEG GND SEG DIG 2 VDD 5 16 AS1108 DIG 3 ISET ...
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... The reflow peak soldering temperature (body temperature) is specified according to IPC/JEDEC J-STD-020D “Moisture/Reflow Sensitivity Classification for non-hermetic Solid State Surface Mount Devices”. 2. Specified according JESD22-B106 “Resistance to Soldering Temperature for Through-Hole Mounted Devices”. 3. Norm: MIL 883 E method 3015. 4. Norm: JEDEC 17. www.austriamicrosystems.com/LED-Driver-ICs/AS1108 Min Max Units V -0 ...
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... Output Data Propagation Delay LOAD Rising Edge-to-Next Clock Rising Edge Minimum LOAD/CSN Pulse High Data-to-Segment Delay Note: All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality Control) methods. www.austriamicrosystems.com/LED-Driver-ICs/AS1108 Ω ±1 (unless otherwise specified). ...
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... V SEG OUT 10kΩ 45 SET 20kΩ SET 40kΩ SET 0.5 1 1.5 2 2.5 3 3.5 V (V) OUT www.austriamicrosystems.com/LED-Driver-ICs/AS1108 Figure 4. Scan Frequency vs. V 1960 1940 1920 1900 1880 1860 1840 1820 1800 80 2 Figure 6. I vs. V SEG OUT OUT 0 2 2.5 ...
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... AS1108 Datasheet - Figure 9. I vs. R SEG SET 2.4V OUT OUT = OUT 1.7V OUT Ω SET www.austriamicrosystems.com/LED-Driver-ICs/AS1108 70 80 Revision 2. ...
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... All registers should be programmed for normal operation at this time. Note: The default settings enable only scanning of one digit; the internal decoder is disabled and the Intensity Control Register (see page 11) is set to the minimum values. Figure 10. Interface Timing LOAD/ CSN t CSS CLK DIN D15 DOUT www.austriamicrosystems.com/LED-Driver-ICs/AS1108 D10 D14 D1 Revision 2. ...
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... Table 7. Register Address Map Register HEX Code No-Op 0xX0 Digit 0 0xX1 Digit 1 0xX2 Digit 2 0xX3 Digit 3 0xX4 Decode-Mode 0xX9 Intensity Control 0xXA Scan Limit 0xXB Shutdown 0xXC N/A 0xXD Feature 0xXE Display Test 0xXF www.austriamicrosystems.com/LED-Driver-ICs/AS1108 Address D15:D12 D11 D10 ...
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... Code-B/HEX decode for digit 0. No decode for digits 3:1 Code-B/HEX decode for digits 3:0 Figure 11. Standard 7-Segment LED Intensity Control and Inter-Digit Blanking Table 10. Code-B Font 7-Segment † Character D7 D6: www.austriamicrosystems.com/LED-Driver-ICs/AS1108 HEX Code D7 D6 0x00 0 X 0x80 1 X 0x01 0 X 0x81 1 X HEX Code D7 0x00 X 0x01 ...
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... The device remains in display-test mode until the Display- Test Register is set for normal operation. Note: All settings of the Digit- and Control-Registers are maintained. Table 13. Display-Test Register Format (Address (HEX) = 0xXF)) Mode Normal Operation Display Test Mode www.austriamicrosystems.com/LED-Driver-ICs/AS1108 Register Data † ...
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... Table 15. Scan-Limit Register Format (Address (HEX) = 0xXB)) Scan Limit Display digit 0 only (see Table 16) Display digits 0:1 (see Table 16) Display digits 0:2 (see Table 16) Display digits 0:3 Table 16. Maximum Segment Current for 1-, 2-, or 3-Digit Displays Number of Digits Displayed www.austriamicrosystems.com/LED-Driver-ICs/AS1108 . SET Register Data ...
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... When the LOAD/CSN signal goes high, all shift registers are latched. The first four devices will receive no-operation commands and only the fifth device will receive the intended operation command, and subsequently update its register. www.austriamicrosystems.com/LED-Driver-ICs/AS1108 D4 D3 ...
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... Table 22. R vs. Segment Current and LED Forward Voltage, V SET I (mA) SEG 1.5 40 8.6kΩ 30 11.6kΩ www.austriamicrosystems.com/LED-Driver-ICs/AS1108 . The current that flows between V SET . Typical values for R SET SET ) are given in Tables 19 - 23. The maximum current the AS1108 can drive is LED = 2.7V DD 2.0 4.4kΩ ...
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... Table 24. Package Thermal Data Package Thermal Resistance ( 20 Narrow DIP 20 Wide SOIC www.austriamicrosystems.com/LED-Driver-ICs/AS1108 = 4.0V (Continued (V) LED 2.0 2.5 16.6kΩ 15.6kΩ 34.5kΩ 32.5kΩ (V) LED 2 ...
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... Otherwise, if one driver is set to display 3 digits and the other to display 2 digits one display will appear brighter because its duty cycle per digit will be 1/2 and the other display’s duty cycle will be 1/3. Note: Refer to No-Op Register (0xX0) on page 12 for additional information. www.austriamicrosystems.com/LED-Driver-ICs/AS1108 4x8 LED Dot Matrix ...
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... AS1108 Datasheet - Package Drawings and Markings The AS1108 is available in a PDIP 20-pin Figure 13. PDIP 20-pin Package 1. For more Information on the PDIP 20-pin package www.austriamicrosystems.com/LED-Driver-ICs/AS1108 1 and a SOIC 20-pin package. Symbol see Ordering Information on page Revision 2.12 Inches Min Nom Max .210 .015 ...
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... Top: matte (charmilles #18-30). (2.2) All sides: matte (charmilles #18-30). (2.3) Bottom: smooth or matte (charmilles #18-30). 3. All dimensions exclusive of mold flash, and end flash from the pack- age body shall not exceed 0.24mm (0.10”) per side (D). www.austriamicrosystems.com/LED-Driver-ICs/AS1108 Millimeters Symbol Min A 2 ...
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... Datasheet - Ordering Information The AS1108 is available as the standard products shown in Table 25. Table 25. Ordering Information Ordering Code Description AS1108PL* 4-Digit LED Display Driver AS1108WL 4-Digit LED Display Driver AS1108WL-T 4-Digit LED Display Driver *) The PDIP 20-pin Package reached end of life. There is the possibility for a last time buy order until end of July 2011. ...
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... The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the tech- nical data herein ...