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The CDC 3231G is a high-end CAN controller for instrumentation and body applications representing a ROM derivative of MICRONAS‘ 32bit automotive controller family based on an ARM7TDMI CPU core. It is pin compatible to all members of the CDC 32xxG controller platform.
The microcontroller with its ARM7TDMI RISC CPU core allows two states of operation: ARM state with 32 bit instructions and THUMB state with 16 bit instructions.
The current version CDC 3231G offers 6k Byte of SRAM, 128k Byte of mask ROM and 8k Byte of Boot ROM. Four stepper motor drivers, as well as a LCD module are embedded for dashboard requirements. Communication is possible via 1 full CAN modules. Due to its scalable architecture more derivatives can be obtained with short lead time and with minimum time for qualification. All devices have the patented ERM (EMI Reduction Module) inbuilt and are operated with single 5V power supply. Further pin- and software compatible devices of the CDC 32xxG family will follow.
128k Byte mask ROM
6k Byte SRAM
8k Byte Boot ROM
4 CPU operation modes (PLL, FAST, SLOW, DEEP SLOW)
3 additional low power modes (PSM) Wake, Standby, Idle
Real Time Clock (RTC)
PLL circuitry delivering up to 48 MHz
4 to 5 MHz oscillator
EMI reduction module (ERM) based on phase modulation
central clock divider
interrupt controller with 26 inputs and 16 priority levels
5 port interrupts
regulator input supervision for reset/alarm (alarm comparator)
clock and supply supervision
16 channel 10 bit ADC
ADC reference (1 internal / 3 external)
46x4 LCD module
1 CAN modules each with 512 Bytes of object RAM according to Bosch specification V2.0B (32 message objects)
1 I²C master modules
4 stepper motor drivers
5 PWM modules (configurable as twice 8 bit or once 16 bit)
phase frequency modulator
sound generator with auto decay
2 SW selectable clock outputs
16 bit free running counter with 4 capture/compare modules
1x16 bit timer and 4x8 bit timer
-40 to +105°C case temp. range
single 5 V power supply (+/-10%) with limited performance down to 3.5V operating
128-Pin PQFP package with 0.5mm pin pitch