EVALUATION KIT AVAILABLE MAX7456 Single-Channel Monochrome On-Screen Display with Integrated EEPROM General Description Features 256 User-Defined Characters or Pictographs in The MAX7456 single-channel monochrome on-screen Integrated EEPROM display (OSD) generator lowers system cost by elimi- nating the need for an external video driver, sync sepa- 12 x 18 Pixel Character Size rator, video switch, and EEPROM. The MAX7456 serves Blinking, Inverse, and Background Control all national and international markets with 256 user-pro- Character Attributes grammable characters in NTSC and PAL standards. Selectable Brightness by Row The MAX7456 easily displays information such as com- Displays Up to 16 Rows x 30 Characters pany logo, custom graphics, time, and date with arbi- trary characters and sizes. The MAX7456 is preloaded Sag Compensation On Video-Driver Output with 256 characters and pictographs and can be repro- LOS, VSYNC, HSYNC, and Clock Outputs TM grammed in-circuit using the SPI port. Internal Sync Generator The MAX7456 is available in a 28-pin TSSOP package NTSC and PAL Compatible and is fully specified over the extended (-40C to SPI-Compatible Serial Interface +85C) temperature range. Delivered with Preprogrammed Character Set Applications Ordering Information Security Switching Systems Security Cameras PART PIN-PACKAGE LANGUAGE English/ Industrial Applications MAX7456EUI+ 28 TSSOP-EP* Japanese In-Cabin Entertainment *EP = Exposed pad. Consumer Electronics +Denotes a lead-free/RoHS-compliant package. Note: This device is specified over the -40C to +85C operat- ing temperature range. Pin Configuration appears at end of data sheet. SPI is a trademark of Motorola, Inc. Simplified Functional Diagram Functional Diagrams AVDD DGND PGND AGND DVDD PVDD VIN CLAMP VIDEO OSD VOUT SYSTEM SYNC DRIVER MUX CLKIN XTAL CLOCK SEPARATOR OSCILLATOR XFB DAC CLKOUT HSYNC SAG VIDEO SAG NETWORK VSYNC TIMING MAX7456 GENERATOR LOS SYNC DISPLAY CHARACTER PIXEL PIXEL CS DISPLAY CHARACTER ADDRESS ADDRESS CODE CONTROL OSD MEMORY MEMORY SCLK GENERATOR (SRAMS) (NVM) SERIAL SDIN INTERFACE SDOUT RESET POR Pin Configurations appear at end of data sheet. Functional Diagrams continued at end of data sheet. UCSP is a trademark of Maxim Integrated Products, Inc. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maximintegrated.com. 19-0576 Rev 1 8/08 AVAILABLEMAX7456 Single-Channel Monochrome On-Screen Display with Integrated EEPROM ABSOLUTE MAXIMUM RATINGS AVDD to AGND ........................................................-0.3V to +6V CLKIN, CLKOUT, XFB to DGND ............-0.3V to (V + 0.3V) DVDD DVDD to DGND........................................................-0.3V to +6V SDIN, SCLK, CS, SDOUT to DGND........-0.3V to (V + 0.3V) DVDD PVDD to PGND.........................................................-0.3V to +6V Maximum Continuous Current into V ........................100mA OUT AGND to DGND.....................................................-0.3V to +0.3V Continuous Power Dissipation (T = +70C) A AGND to PGND.....................................................-0.3V to +0.3V 28-Pin TSSOP (derate 27mW/C above +70C).......2162mW* DGND to PGND.....................................................-0.3V to +0.3V Operating Temperature Range ...........................-40C to +85C VIN, VOUT, SAG to AGND......................-0.3V to (V + 0.3V) Junction Temperature......................................................+150C AVDD HSYNC, VSYNC, LOS to AGND ...............................-0.3V to +6V Storage Temperature Range .............................-60C to +150C RESET to AGND .....................................-0.3V to (V + 0.3V) Lead Temperature (soldering, 10s) .................................+300C AVDD *As per JEDEC51 Standard (Multilayer Board). Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = +4.75V to +5.25V, V = +4.75V to +5.25V, V = +4.75V to +5.25V, T = T to T . Typical values are at V AVDD DVDD PVDD A MIN MAX AVDD = V = V = +5V, T = +25C, unless otherwise noted.) (Note 1) DVDD PVDD A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLIES Analog Supply Voltage V 4.75 5 5.25 V AVDD Digital Supply Voltage V 4.75 5 5.25 V DVDD Driver Supply Voltage V 4.75 5 5.25 V PVDD V = 1V (100% white flat field signal), IN P-P Analog Supply Current I 24 35 mA AVDD VOUT load, R = 150 L V = 1V (100% white flat field signal), IN P-P Digital Supply Current I 25 30 mA DVDD VOUT load, R = 150 L V = 1V (100% white flat field signal), IN P-P Driver Supply Current I 58 80 mA PVDD VOUT load, R = 150 L NONVOLATILE MEMORY Data Retention T = +25C 100 Years A Endurance T = +25C 100,000 Stores A DIGITAL INPUTS (CS, SDIN, RESET, SCLK) Input High Voltage V 2.0 V IH Input Low Voltage V 0.8 V IL Input Hysteresis V 50 mV HYS Input Leakage Current V = 0 or V 10 A IN DVDD Input Capacitance C 5pF IN DIGITAL OUTPUTS (SDOUT, CLKOUT, VSYNC, HSYNC, LOS) Output High Voltage V I = 4mA (SDOUT, CLKOUT) 2.4 V OH SOURCE Output Low Voltage V I = 4mA 0.45 V OL SINK Tri-State Leakage Current SDOUT, CS = V 10 A DVDD 2 Maxim Integrated