Rainbow-electronics AT77SM0101BCB02VKE Manual do Utilizador descarregar pdf (Página 6)

AT77SM0101BCB02VKE

5391A–BIOM–09/04

Board’s Main

Components

ARM9-based AT91RM9200

Microcontroller

The AT91RM9200 microcontroller features the following:

• 200 MIPS capability

• 16 KB data cache

• 16 KB instruction cache

• 16 KB SRAM

• ROM boot

•Ethernet MAC

• USB 2.0 full-speed host and device

• USART, DMA, TWI, SPI, SSC, MCI

The ARM9 operates at 200 MHz on the module.

Memory The AT77SM0101BCB02VKE biometric module features:

• 128 Mbits (16 Mbytes) of SDRAM on a 32-bit parallel data bus interface operating at

66 MHz

• 32 Mbits (4 Mbytes) of Atmel DataFlash on an SPI bus operating at 10 MHz

AT77C101B-CB02V Sensor The sensor has the following characteristics:

• A sensitive layer over a 0.8 µm CMOS array

• An image zone of 0.4 × 14 mm, equalling 0.02 in. × 0.55 in.

• An image array of 8 × 280, equalling 2240 pixels

• A pixel pitch of 50 µm × 50 µm, equalling 500 dots-per-inch resolution

• A pixel clock of up to 2 MHz with a capacity of up to 1780 frames per second

• A die size of 1.7 × 17.3 mm

• An operating voltage range of 3V to 5.5V

• A natural protection from electrostatic discharge (ESD) up to 16 kV of air discharge.

Use of metal casing or metalized plastic in the final application is strongly

recommended

• A power consumption of 20 mW at 3.3V, 1 MHz, 25°C

• An operating temperature range of -40°C to +85°C

• A strong resistance to abrasion with the capability to withstand over 1 million finger

sweeps

• A sweep speed ranging from 2 cm/s to 20 cm/s

• A low power consumption of 6 mA typical in acquisition mode and 10 µA in standby

mode

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