Allegro Microsystems Surface Mount Hall Effect Sensor, SOT-23W, 5-Pin

Dual element devices are integrated circuits that contain two independent Hall-effect switches. The digital outputs are out-of-phase (quadrature) when interfaced with the proper ring magnet design. These quadrature signals can be processed to determine target speed and direction. Alternately, the A1232 and A1233 internally process these switch outputs into speed and direction signals.

200 MHz/330 DMIPS, MIPS32 microAptiv core
Dual Panel Flash for live update support
12-bit, 18 MSPS, 45-channel ADC module
Memory Management Unit for optimum embedded OS execution
microMIPS mode for up to 35% code compression
CAN, UART, I2C, PMP, EBI, SQI & Analog Comparators
SPI/I2S interfaces for audio processing and playback
Hi-Speed USB Device/Host/OTG
10/100 Mbps Ethernet MAC with MII and RMII interface
Advanced Memory Protection
2MB Flash memory (plus an additional 160 KB of Boot Flash)
640KB SRAM memory