The number of µCs in automobiles has grown rapidly over the years, with cars now sporting CANs (Controller Area Networks) to ensure networking and tight integration among controller units. In light of this, Micronas has introduced the first integrated dashboard µCs capable of driving up to seven stepper motors for use in car instrumentation.
Sporting a scaleable architecture through the use of the 16/32-bit ARM7TDMI RISC processor core, the CDC 3207G and CDC 3272G allow for both 16-bit and 32-bit operations. Both µCs offer multi-function ports, special function ROM (SFR) and multiple patch cells. While the CDC 3207G features 512-kbytes flash memory, 32-kbytes RAM and 8-kbytes (SFR) ROM, the CDC3272G features 384-kbytes mask ROM, 12-kbytes RAM and 8-kbytes (SFR) ROM. In addition, the µCs offer two I2Cs, two UARTs and two SPIs along with a graphics bus. The µCs also offer an integrated LCD module that can display up to 192 segments.
The unique feature of the CDC 3207G and the CDC 3272G is the patented on-chip electromagnetic interference (EMI) reduction module that suppresses radiation.
Both µCs also offer CAN modules that support all 32 message objects (512-byte RAM) in compliance with the Bosch V2.0B standard. The CDC 3207G offers three on-chip high-speed CAN modules; the CDC3273G offers two modules. These modules in turn allow the dashboard controller to work as a gateway for messages between the motor control, radio/multimedia and the ABS modules. The µCs are of automotive grade and operate between -40 to 105°C with input voltages as low as 3.5V to 5V. The µCs target automotive dashboard applications.
Both devices come in PQFP-128 packages with 100-pin I/O support. The CDC 3207G is priced at US$15 (500,000), the CDC 3272G at US$10.
The number of µCs in automobiles has grown rapidly over the years, with cars now sporting CANs (Controller Area Networks) to ensure networking and tight integration among controller units. In light of this, Micronas has introduced the first integrated dashboard µCs capable of driving up to seven stepper motors for use in car instrumentation.
