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MAX6953EAX Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX6953EAX Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 23 page 2-Wire Interfaced, 2.7V to 5.5V, 4-Digit 5 ✕ 7 Matrix LED Display Driver _______________________________________________________________________________________ 5 80 85 95 90 100 105 2.5 3.5 3.0 4.0 4.5 5.0 5.5 DEAD CLOCK OSCILLATOR FREQUENCY vs. SUPPLY VOLTAGE SUPPLY VOLTAGE (V) 0.95 0.97 0.96 0.99 0.98 1.00 1.01 2.5 3.5 4.0 3.0 4.5 5.0 5.5 OUTPUT SOURCE CURRENT vs. SUPPLY VOLTAGE SUPPLY VOLTAGE (V) WAVEFORMS AT O2 (PIN 3) AND O14 (PIN 28) V+ = 3.3V, 8/16 INTENSITY GROUND FOR ANODE (PIN 014) GROUND FOR CATHODE (PIN 03) 200 µs/div Typical Operating Characteristics (continued) (Typical application circuit, V+ = 3.3V, LED forward voltage = 2.4V, scan limit set to 4 digits, TA = +25°C, unless otherwise noted.) Pin Description PIN SSOP PDIP NAME FUNCTION 1, 2, 3, 6–14, 23, 24 1, 2, 3, 7–15, 26, 27 O0 to O13 LED Cathode Drivers. O0 to O13 outputs sink current from the display’s cathode rows. 4, 5, 17 4, 5, 6, 19 GND Ground 15 17 ISET Segment Current Setting. Connect ISET to GND through series resistor RSET to set the peak current. 16 18 AD1 Address Input 1. Sets device slave address. Connect to either GND, V+, SCL, SDA to give four logic combinations. See Table 3. — 16, 25 N.C. Not Connected 18 20 BLINK Blink Output. Output is open drain. 19 21 OSC Multiplex Clock Input. To use internal oscillator, connect capacitor CSET from OSC to GND. To use external clock, drive OSC with a 1MHz to 8MHz CMOS clock. 20 22 AD0 Address Input 0. Sets device slave address. Connect to either GND, V+, SCL, SDA to give four logic combinations. See Table 3. 21 23 SDA I 2 C-Compatible Serial Data I/O 22 24 SCL I 2 C-Compatible Serial Clock Input 25–31, 34, 35, 36 28–34, 38, 39, 40 O14 to O23 LED Anode Drivers. O14 to O23 outputs source current to the display’s anode columns. 32, 33 35, 36, 37 V+ Positive Supply Voltage. Bypass V+ to GND with a 47µF bulk capacitor and a 0.1µF ceramic capacitor. |
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