MAX6952 Datasheet | Maxim Integrated

Description Features o High-Speed 26MHz with SPI-/QSPI-™/ MICROWIRE™-patible Serial Interface o 2.7V to 5.5V Operation o Drives Four Monocolor or Two Bicolor Cathode Row 5 ✕ 7 Matrix Displays o Built-In ASCII 104-Character Font o 24 User-Definable Characters Available o Automatic Blinking Control for Each Segment o 36µA Low-Power Shutdown (Data Retained) o 16-Step Digital Brightness Control o Display Blanked on Power-Up o Slew-Rate-Limited Segment Drivers for Lower EMI o 36-Pin SSOP and 40-Pin DIP Packages The MAX6952 is a pact cathode-row display driver that interfaces microprocessors to 5 ✕ 7 dot-matrix LED displays through an SPI™-patible serial interface. The MAX6952 drives up to four digits (140 LEDs). Included on chip are an ASCII 104-character font, multiplex scan circuitry, column and row drivers, and static RAM that stores each digit, as well as font data for 24 user-definable characters. The segment current for the LEDs is set by an internal digit-by-digit digital brightness control. The device includes a low-power shutdown mode, segment blinking (synchronized across multiple drivers, if desired), and a test mode that forces all LEDs on. The LED drivers are slew rate limited to reduce EMI. For a 2-wire interfaced version, refer to the MAX6953 data sheet. An EV kit is available for the MAX6952. Applications Message Boards Medical Equipment Industrial Displays Audio/Video Equipment Gaming Machines PART MAX6952EAX MAX6952EPL Ordering Information TEMP RANGE -40°C to +85°C -40°C to +85°C PIN-PACKAGE 36 SSOP 40 PDIP SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. Pin Configurations appear at end of data sheet. Typical Application Circuit DIGIT 0 DIGIT 1 O19 O20 O21 O22 O23 O0 O1 O2 O3 O4 O5 O6 C1 C2 C3 C4 C5 3.3V V+ V+ 100n F 47µF GND GND GND 3.3V 4.7kΩ CLK DIN CS DOUT BLINK OSC ISET CSET 26p F RSET 53.6kΩ O0 O1 O2 O3 O4 O5 O6 O7 O8 O9 O10 O11 O12 O13 O14 O15 O16 O17 O18 O19 O20...