MAX7450ESA+T

The MAX7450ESA+T is Maxim’s on‑screen display (OSD) graphics controller for analog video. It overlays programmable text and simple graphics onto a composite video signal (NTSC/PAL) with an integrated font ROM and color palette. Controlled by a small serial interface (SPI‑like), it lets you set overlay position, size, color, attributes (e.g., blinking or transparency), and update content in real time. It’s commonly used to add menus, timestamps, logos, or status indicators in CCTV, automotive cameras, DVRs, and avionics displays. The suffixes -ESA indicate the package variant, and -T denotes tape‑and‑reel shipping.

There is no widely available, guaranteed drop‑in equivalent to the Maxim MAX7450ESA+T. Similar-function OSD/video‑overlay devices exist from Maxim (newer OSD chips), Analog Devices, Texas Instruments and Sony, and you can replicate OSD with an MCU/FPGA+video DAC. For a direct cross‑reference, supply required footprint, video standard and control interface or consult Maxim’s support.

Here are the key features of the MAX7450ESA+T (OSD/video overlay IC):
- All-in-one OSD/overlay processor for composite video (NTSC/PAL) with pass-through video.
- Built-in font ROM and support for user bitmaps/logos; ASCII 32–126 and custom glyphs.
- Multi-layer overlays: text, bitmaps/logos, and basic graphics/shapes (frames, boxes, crosshairs).
- Color support with configurable foreground/background colors and optional transparency/blinking.
- Programmable positioning, size, color, and display attributes for each overlay element.
- Real-time control via a serial interface (SPI-style); commands to update text, logos, positions, and attributes on the fly.
- Auto font rendering and rapid updates suitable for dynamic OSD (e.g., telemetry, status, time).
- Small footprint and low power; suitable for embedded/FPV-type applications.
- ESA+T variant notes: offers an extended temperature range version; check datasheet for exact temp spec and package details.
For exact electrical specs, timing, and limited-variant differences, consult the MAX7450 datasheet.

The MAX7450ESA+T is supplied in a 24-pin TSSOP package (ESA). It is an on‑screen display (OSD) / character-generator IC for composite video (NTSC/PAL). Key functions/pin roles include: power (VCC), grounds (AGND/DGND), composite video input and output, video sync/input pins, a serial control interface (SPI: CS, SCLK, SDI/MOSI, SDO/MISO), reset/control and interrupt/status pins, and analog/video processing pins plus character/bitmap memory control. In short: 24 pins; purpose — overlay text/graphics onto composite video via serial control.

Manufacturer: Maxim Integrated (part number prefix MAX). Maxim Integrated was acquired by Analog Devices, Inc. in 2021, so the part is now sold under the Analog Devices/Maxim product umbrella.
What kind of company: Maxim Integrated was an American semiconductor company (fabless) that designed and supplied analog and mixed-signal integrated circuits—power management, data converters, interface ICs, sensors, and related components—for consumer, industrial, automotive, and communications markets. After acquisition it operates within Analog Devices’ portfolio.

MAX7450ESA+T is an on-screen display (OSD) generator for analog video (NTSC/PAL). Typical applications:
- Aviation/avionics: cockpit camera feeds with flight data overlays, HUD-style graphics
- Military/defense: rugged video displays with telemetry and status icons
- Automotive: rear/near‑field camera displays with guidelines, warnings, telemetry
- Industrial/instrumentation: test/monitoring equipment with on‑screen menus and data readouts
- CCTV/security: time/date stamps, GPS/location data, alarms over video
- Consumer electronics: video recorders/cameras needing graphic overlays

MAX7450ESA+T is supplied in a 28-pin TSSOP surface-mount package (suffix ESA). The “+T” indicates tape-and-reel shipping.