The ADUC841BSZ62-5 is a single-cycle 20MHz 8-bit Microcontroller incorporates a high-performance self calibrating multichannel ADC and dual DAC on a single chip. The ADuC841 is identical with the exception of the clock oscillator circuit. The ADuC841 is clocked directly from an external crystal up to 20MHz. The microcontroller is an optimized 8052 core offering up to 20MIPS peak performance. Three different memory options are available offering up to 62kB of nonvolatile Flash/EE program memory. 4kB of nonvolatile flash/EE data memory, 256byte RAM and 2kB of extended RAM are also integrated on-chip.
Feature
Single-cycle 20MIPS 8052 core
High speed 420kSPS 12-bit ADC
In-circuit reprogrammable
8-channel, 420kSPS high accuracy, 12-bit ADC
On-chip, 15 ppm/°C voltage reference
DMA Controller, high speed ADC-to-RAM capture
Two 12-bit voltage output DACs
Dual output PWM ∑-∆ DAC
On-chip temperature monitor function
8051 Compatible instruction set (20MHz max)
32kHz External crystal, on-chip programmable PLL
12 Interrupt sources, 2 priority levels
Dual data pointers, extended 11-bit stack pointer
Time interval counter (TIC)
Watchdog timer (WDT)
Power supply monitor (PSM)
Applications
Optical networking—laser power control
Base station systems
Precision instrumentation, smart sensors
Transient capture systems
DAS and communications systems