The TMS320DM355 Digital Media System-on-Chip (DMSoC) is a high-performance digital media system-on-chip that integrates a 216-MHz and 270-MHz ARM926EJ-S core, as well as support for 8-bit/16-bit YCC and 18-bit RGB666 digital output interfaces. The device also supports BT.601/BT.656 digital YCbCr 4:2:2 interface, which can be used to connect to external encoders, and supports digital HDTV (720p/1080i) output.
The TMS320DM355 Digital Media System‑on‑Chip (DMSoC) combines a 216‑ or 270‑MHz ARM926EJ‑S processor with a dedicated MPEG4/JPEG coprocessor, video processing front‑end and back‑end, and a rich set of peripherals for digital camera and video recorder applications. It supports high‑definition video codecs, multiple memory interfaces, USB 2.0, and up to 104 GPIO pins.
The datasheet provides detailed functional block diagrams, memory maps, pin assignments, electrical characteristics, mechanical dimensions, and a full list of on‑chip peripherals such as timers, PWM, UARTs, SPI, I2C, and audio serial ports.
| ARM926EJ‑S Clock Rate | 216‑ and 270‑MHz |
|---|---|
| Package Type | 337‑Pin BGA (ZCE) |
| Process Technology | 90 nm |
| On‑chip RAM | 32 KB RAM, 8 KB ROM |
| Maximum CPU Frequency | 270 MHz |
| General‑Purpose I/O Pins | Up to 104 |
| DMA Channels | 64 independent channels |
The DM355 supports the MPEG‑4 SP codec at HD (720p), D1, VGA, SIF and a JPEG codec up to 50 M pixels per second.
The device provides up to 104 general‑purpose I/O pins.
The DM355 is manufactured with 90 nm process technology.
It is offered in a 337‑pin ball‑grid‑array (BGA) package (ZCE).