Overview
The TMS320DM355CZCE270 is a Digital Media System-on-Chip (DMSoC) produced by Texas Instruments. This highly integrated, programmable platform is designed for various digital media applications, including digital still cameras, digital photo frames, IP security cameras, and 4-channel digital video recorders. The DM355 combines high-performance MPEG4 HD (720p) and JPEG codecs, supporting up to 50 million pixels per second, with low power consumption and a competitive price point.
The core of the DM355 is the ARM926EJ-S RISC processor, which operates at frequencies of up to 270 MHz and supports 32-bit, 16-bit, and 8-bit instructions. The device features a comprehensive set of peripherals and interfaces, making it versatile for a wide range of portable digital video solutions.
Key Specifications
| Feature | Specification |
|---|---|
| Processor Core | ARM926EJ-S RISC processor |
| Operating Frequency | Up to 270 MHz |
| Cache Memory | 16 KB Instruction Cache, 8 KB Data Cache |
| On-Chip RAM/ROM | 32 KB RAM, 8 KB ROM |
| Memory Interfaces | DDR2/mDDR, Asynchronous EMIF (AEMIF), NAND, OneNAND |
| Video Processing | MPEG4/JPEG Coprocessor, Hardware IPIPE for Real-Time Image Processing |
| Video Output | Up to 720p MPEG4 SP, Composite NTSC/PAL video encoder output |
| Digital Interfaces | BT.601/BT.656 Digital YCbCr 4:2:2 Interface, 8-/16-bit YCC and up to 18-bit RGB666 Digital Output |
| USB Interface | USB 2.0 Full and High-Speed Device and Host |
| Package Type | 337-Pin Ball Grid Array (BGA), 0.65-mm Ball Pitch |
| Process Technology | 90 nm |
| Voltage | 1.3 V Internal, 3.3 V and 1.8 V I/O |
Key Features
- High-Performance Media Processing: Supports up to 720p MPEG4 SP and up to 50 million pixels per second JPEG processing.
- ARM926EJ-S Core: 32-bit RISC processor with 32-bit, 16-bit, and 8-bit instruction sets.
- Memory and Storage: DDR2/mDDR, asynchronous EMIF, NAND, OneNAND, and flash memory interfaces.
- Video Processing Subsystem (VPSS): Includes hardware IPIPE for real-time image processing and on-screen display (OSD).
- Peripheral Set: Includes UARTs, SPI, I2C, PWM, RTO, MMC/SD interfaces, and USB 2.0.
- Power Management: Configurable power-saving modes and a power and sleep controller.
- Debug and Development Tools: EmbeddedICE-RT logic, JTAG, and ETB with 4K-byte trace buffer memory.
Applications
- Digital Still Cameras: Supports high-quality image capture and processing.
- Digital Photo Frames: Enables the display of digital images with advanced features.
- IP Security Cameras: Suitable for surveillance applications requiring high-quality video streaming.
- 4-Channel Digital Video Recorders: Ideal for multi-channel video recording and playback.
- Video Doorbells and Other Portable Video Devices: Offers a robust platform for various low-cost, portable digital video applications.
Q & A
- What is the core processor of the TMS320DM355?
The core processor is the ARM926EJ-S RISC processor.
- What are the maximum operating frequencies of the DM355?
The maximum operating frequencies are 135 MHz, 216 MHz, and 270 MHz.
- What types of memory interfaces does the DM355 support?
The DM355 supports DDR2/mDDR, asynchronous EMIF (AEMIF), NAND, and OneNAND memory interfaces.
- What is the video processing capability of the DM355?
The DM355 supports up to 720p MPEG4 SP and up to 50 million pixels per second JPEG processing.
- Does the DM355 have USB capabilities?
Yes, it supports USB 2.0 full and high-speed device and host interfaces.
- What package type does the DM355 come in?
The DM355 comes in a 337-Pin Ball Grid Array (BGA) package with a 0.65-mm ball pitch.
- What is the process technology used in the DM355?
The DM355 is fabricated using 90 nm process technology.
- What are the voltage requirements for the DM355?
The DM355 requires 1.3 V internal voltage and 3.3 V and 1.8 V I/O voltages.
- Does the DM355 support debug and development tools?
Yes, it includes EmbeddedICE-RT logic, JTAG, and ETB with 4K-byte trace buffer memory.
- What are some common applications of the DM355?
Common applications include digital still cameras, digital photo frames, IP security cameras, and 4-channel digital video recorders.
