General Description
The CL RC632 is member of a new family of highly integrated reader ICs for contactless communication at 13.56 MHz. This reader IC family utilises an outstanding modulation and demodulation concept completely integrated for all kinds of passive contactless communication methods and protocols at 13.56 MHz. The CL RC632 is pin- compatible to the MF RC500, the MF RC530, the MF RC531 and the SL RC 400.

Features
• Highly integrated analog circuitry to demodulate and decode card/label response
• Buffered output drivers to connect an antenna with minimum number of external components
• Proximity operating distance (up to 100 mm)
• Supports ISO 14443 A&B
• Supports MIFARE® Dual Interface Card ICs and supports MIFARE® Classic protocol
• Supports contactless communication with MIFARE® higher baudrates up to 424 kbaud
• Supports I•CODE1 and ISO 15693
• Crypto1 and secure non-volatile internal key memory
• Pin-compatible to the MF RC500, MF RC530, MF RC531 and the SL RC400
• Parallel µ-Processor interface with internal address latch and IRQ line
• SPI compatible interface
• Flexible interrupt handling
• Automatic detection of parallel µ-Processor interface type
• Comfortable 64 byte send and receive FIFO-buffer
• Hard reset with low power function
• Power down mode per software
• Programmable timer
• Unique serial number
• User programmable start-up configuration
• Bit- and byte-oriented framing
• Independent power supply pins for digital, analog and transmitter part
• Internal oscillator buffer to connect 13.56 MHz quartz, optimised for low phase jitter
• Clock frequency filtering
• 3.3 V to 5 V operation for transmitter (antenna driver) in short range and proximity applications
• 3.3 V or 5V operation for the digital part