MAX6950CEE Maxim Integrated Products, MAX6950CEE Datasheet
MAX6950CEE
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MAX6950CEE Summary of contents
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... Drives Common-Cathode LED Digits ♦ Multiplex Clock Syncronizable to External Clock ♦ Slew-Rate Limited Segment Drivers for Low EMI ♦ 75µA Low-Power Shutdown (Data Retained) ♦ Small 16-Pin QSOP Package PART Applications MAX6950CEE MAX6950EEE MAX6951CEE MAX6951EEE *EP = Exposed pad. TOP VIEW ( ) MAX6951 ONLY ...
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Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers ABSOLUTE MAXIMUM RATINGS Voltage (with Respect to GND) V+………………………………. ...................................-0. All Other Pins................................................-0.3V to (V+ + 0.3V) DIG1–DIG8 Sink Current.................................................. 440mA SEG1–SEG9 Source Current.............................................. 55mA Continuous Power ...
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Serially Interfaced, +2.7V to +5.5V, ELECTRICAL CHARACTERISTICS (Typical operating circuit +3.0V to +5.5V, T PARAMETER SYMBOL Slow Segment Blink Period f S LOWBLIN K (Internal Oscillator) Fast Segment Blink Period f FASTBLIN K (Internal Oscillator) Fast or Slow ...
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Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers (Typical operating circuit, scan limit set to eight digits +3.3V, V INTERNAL OSCILLATOR FREQUENCY vs. TEMPERATURE 4.40 4. 2.7V 4.20 4. 3.3V 4.00 ...
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Serially Interfaced, +2.7V to +5.5V, PIN NAME 1 DIN Serial Data Input. Data is loaded into the internal 16–bit Shift register on CLK’s rising edge. Serial-Clock Input. On CLK’s rising edge, data is shifted into the Internal Shift register. On ...
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Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers Table 1. Standard Driver Connection to Single-Digit Displays DIG/SEG0 DIG/SEG1 PIN 6 PIN 5 LED Digit 0 CC0 SEG dp LED Digit 1 SEG dp CC1 LED Digit 2 ...
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Serially Interfaced, +2.7V to +5.5V, CS CLK DIN Figure 1. Timing Diagram CS CLK D13 DIN D15 D14 D12 Figure 2. Transmission of 16 Bits to the MAX6950/MAX6951 CS CLK DIN BIT1 BIT2 N-15 N-14 N-13 Figure 3 . Transmission ...
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Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers Table 3. Register Address Map REGISTER No-Op Decode Mode Intensity Scan Limit Configuration Factory reserved. Do not write to this. Display Test Digit 0 plane P0 only (plane 1 ...
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Serially Interfaced, +2.7V to +5.5V, Table 4. Initial Power-Up Register Status REGISTER POWER-UP CONDITION Decode No decode for digits 7–0 Intensity 1/16 (min on) Scan Limit Display 5 digits hutd ow n enab l ...
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Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers Table 5. Configuration Register Format ADDRESS MODE CODE (HEX) Configuration register 0x04 Table 6. Shutdown Control (S Data Bit D0) Format ADDRESS MODE CODE (HEX) Shutdown 0x04 Normal operation ...
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Serially Interfaced, +2.7V to +5.5V, Table 10. Global Clear Digit Data (R Data Bit D5) Format ADDRESS MODE CODE (HEX) Digit data for both planes P0 and P1 are 0x04 unaffected Digit data for both planes P0 and P1 are ...
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Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers Table 13. Intensity Register Format TYPICAL SEGMENT DUTY CYCLE CURRENT (mA) 1/16 (min on) 2.5 2/16 5 3/16 7.5 4/16 10 5/16 12.5 6/16 15 7/16 17.5 8/16 20 ...
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Serially Interfaced, +2.7V to +5.5V, 200µs TIME SLOT 200µs TIME SLOT 200µs TIME SLOT DIGIT 0 DIGIT 1 DIGIT CATHODE DRIVER INTENSITY SETTINGS HIGH-Z 1/16TH (MIN ON) LOW CURRENT SOURCE ENABLED ANODE MIN ON HIGH-Z HIGH-Z 2/16TH LOW 3/16TH LOW ...
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Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers Table 14. Decode-Mode Register Examples DECODE CODE No decode for digits 7–0 Hexadecimal decode for digit 0, no decode for digits 7–1 Hexadecimal decode for digits 2–0, no decode ...
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Serially Interfaced, +2.7V to +5.5V, Table 16. No-Decode Mode Data Bits and Corresponding Segment Lines REGISTER DATA Segment line 6720 external resistor ...
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Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers Table 17. Digit Register Mapping with Blink Globally Disabled SEGMENT’S SEGMENT’S BIT SETTING BIT SETTING IN PLANE P1 IN PLANE P0 Segment off during both halves of each blink ...
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Serially Interfaced, +2.7V to +5.5V, µC Figure 5. Sample Board Layout ______________________________________________________________________________________ 5- and 8-Digit LED Display Drivers 3.3V C2 22µF 16 DIG1–DIG8 SEG1–SEG9 MAX6951 ISET 1 DIN DIN OSC CLK CLK 8 TRANSISTOR COUNT: 17,350 ...
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Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers SEGMENT CURRENT ISET REFERENCE MULTIPLEX, PWM BLINK OSC COUNTERS BLINK ENABLE BLINK RATE BLINK CONTROL BLINK SYNC P1 ENABLE P0 ENABLE 3 8 ENABLE ADDRESS DATA 8-BYTE DUAL-PORT RAM ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 19 © 2005 Maxim Integrated Products ...