Weltrend

WT5261

【 General Description 】

The WT5261 is a high performance 1D/2D barcode decoding processor which incorporates a 32-bit RISC CPU with DSP instruction set that operates up to 192 MHz and rich vision-processing-units/interfaces such as scaler, lens correction, image mask, and etc. It is suitable for 1D/2D barcode decoder system.

The WT5261 is cost-effective, providing a powerful Vision Acceleration Engine (VAE), supporting video out interface, UART, and USB for POS, hand-held scanning, or other terminal systems. The high level of integration simplifies system hardware design and shortens time to market.

The WT5261 can be easily integrated into various solutions such as POS systems, ATMs, ticket gates, kiosks, queue machines, ticketing machines, PDAs, and many more.

【 Features 】
●	Embedded 32-bit RISC CPU core
	- DSP instruction set
	- Up to 192 MHz operation frequency
●	Memory
	- Embedded serial flash
	- Internal 64 KB ILM
	- Internal 32 KB DLM
	- 256 KB optimized frame buffers for video data storage and CPU access
	- 256 KB virtual memory of VAE
●	Vision Acceleration Engines (VAE)
	- Perspective, Mask, Binarization, Line Detection, Pixel
●	Video inputs
	- ITU BT.601 / ITU BT.656 YUV
	- Video formats: VGA (0.3MP, 640x480/752x480)
●	Video outputs
	- ITU BT.601 / ITU BT.656 YUV
●	On screen display (OSD)
●	Embedded LDO 2.8V for CMOS sensor
●	Communication interfaces
	- ISP and ICE interface
	- 1 Quad SPI for Serial Flash Controller interface up to 96 MHz
	- 1 USB device I/F (Complete compatible with Universal Serial Bus specification 2.0 Full Speed)
	- 1 master/slave mode I2C interfaces up to 400 kHz
	- 2 full-duplex UART up to 1.5 MHz
	- 1 master/slave SPI up to 12 MHz
	- 2 PWM 12-bit for voice
	- 1 NSP32 spectral sensor (32x32)
	- 1 Comparator for light sensor detection
●	Timer with 16-bit prescaler
●	GPIO with configurable input/output direction and pull-up/pull-down resistor
●	Window Watchdog Timer (WWDT)
●	CPU clock source
	- External crystal oscillator 24 MHz (built-in PLL)
●	Power consumption
	- Power supply 3.3V
●	Operating temperature range: -40℃ to +85℃
●	Package type: QFN-64 (8x8)
●	Supported barcode symbologies
	- 2D: QR Code, PDF417, Data Matrix
	- 1D: EAN-8, EAN-13, UPC-A, UPC-E, UCC/EAN-128, ISBN, ISSN, Codabar, Code11, Code32, Code39, Code93, Code128/AIM128, ITF-6, ITF-14, Interleaved 2 of 5, Industrial 2 of 5, Standard 2 of 5, Matrix 2 of 5, GS1 Databar, MSI/Plessey, UK/Plessey, etc.

【 Application Circuit 】
●	Payment barcode reader
●	Handheld barcode reader
●	POS or PDA with barcode reader
●	Queue machines with barcode reader
●	Door access control with barcode reader

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