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Description
AT89C5122D-IM is a high-performance CMOS derivative of the 80C51 8-bit microcontroller. It is specifically designed for USB smart card reader applications.
Specifications and features
- Clock Controller with 80C51 core and 6 clocks per instruction.
- 8 MHz On-Chip Oscillator.
- PLL for generating clock to supply CPU core, USB and Smart Card Interfaces.
- Programmable CPU clock from 500 KHz / X1 to 48 MHz / X1.
- Reset Controller with Power On Reset (POR) feature and Power Fail Detector (PFD).
- Power Management with two power saving modes: Idle and Power Down.
- Four Power Down Wake-up Sources: Smart Card Detection, Keyboard Interrupt, USB Resume, and External Interrupt.
- Input Voltage Range: 3.0V - 5.5V.
- Core's Power Consumption (Without Smart Card and USB): 30 mA Maximum Operating Current @ 48 MHz / X1, 200 μA Maximum Power-down Current @ 5.5V.
- Interrupt Controller with up to 9 interrupt sources and up to 4 Level Priority.
- Memory Controller with internal program memory of up to 32KB of Flash or CRAM or ROM for AT8xC5122 or ROM for AT83R5122, and internal data memory of 768 bytes including 256 bytes of data and 512 bytes of XRAM.
- Optional internal data E2PROM of 512 bytes.
- Two 16-bit Timer/Counters.
- USB 2.0 Full Speed Interface with 48 MHz DPLL, On-Chip 3.3V USB voltage regulator and transceivers, and 7 endpoints programmable with In or out directions and ISO, Bulk or Interrupt Transfers.
- ISO 7816 UART Interface Fully Compliant with EMV, GIE-CB and WHQL Standards.
- Programmable ISO clock from 1 MHz to 4.8 MHz, Card insertion/removal detection with automatic deactivation sequence, Programmable Baud Rate Generator from 372 to 11.625 clock pulses, and Synchronous/Asynchronous Protocols T=0 and T=1 with Direct or Inverse Convention.
- Automatic character repetition on parity errors, 32 Bit Waiting Time Counter, and 16 Bit Guard Time Counter.
- Internal Step Up/Down Converter with Programmable Voltage Output.
- Current overload protection and 6 kV ESD (MIL/STD 833 Class 3) protection on the whole Smart Card Interface.
- Alternate Smart Card Interface with CLK, IO and RST.
- UART Interface with Integrated Baud Rate Generator (BRG).
- Keyboard interface with up to 20x8 matrix management capability.
- Master/Slave SPI Interface.
- Four 8 bit Ports, one 6 bit port, and one 3-bit port.
- Up to Seven LED outputs with 3 level programmable current source: 2, 4 and 10 mA.
- Two General Purpose I/O programmable as external interrupts.
- Up to 8 input lines programmable as interrupts.
- Up to 30 output lines.
Application Scenarios
The AT89C5122D-IM microcontroller can be applied in USB smart card reader devices, EMV compliant systems, keyboard interfaces, SPI interfaces, and LED control systems.
Comparison
Advantages- High performance CMOS derivative of the 80C51 8-bit microcontroller.
- Designed specifically for USB smart card reader applications.
- Wide input voltage range.
- Low power consumption.
- Multiple interrupt sources and priority levels.
- USB 2.0 Full Speed Interface with programmable endpoints.
- ISO 7816 UART Interface Fully Compliant with EMV, GIE-CB and WHQL Standards.
- Integrated Baud Rate Generator (BRG).
- Keyboard interface with matrix management capability.
Disadvantages- Requires external components for additional functionalities.
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Similar parts: 3915 , Click to view
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download AT89C5122D-IM
- Chipdatas Part: CD91-AT89C5122D-IM
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/17 01:59 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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