Overview: 

Enhanced A/D type series microcontrollers are 8-bit microcontrollers with high-performance compact instruction sets for a wide range of applications. Adhering to the AXTEK microcontroller with low power consumption, I/O flexibility, timer function, oscillation type selectable, sleep and wake-up function, watchdog and low-voltage reset, etc., the Enhanced A/D type microcontroller has a high cost-effective performance, with an integrated system oscillator, HIRC, which provides three frequency choices, and does not require the addition of external components. It can be used in a wide range of applications, such as industrial control, consumer products, and home appliance subsystem control.

Features: 

CPU Features.

- Operating voltage: 

fSYS = 4MHz: 2.2V to 5.5V 

fSYS = 8MHz: 3.0V to 5.5V 

fSYS = 12MHz: 4.5V to 5.5V

- Command cycle is 0.33μs at VDD=5V and 12MHz. 

- Oscillation modes: 

External high frequency crystal - HXT 

External RC - ERC 

Internal high frequency RC - HIRC 

External low frequency crystal - LXT

- 3 modes of operation: Normal mode, Low speed mode, Sleep mode 

- Internal 4MHz, 8MHz and 12MHz RC oscillators, no need for external components 

- Watchdog Timer 

- LIRC oscillator for watchdog clocking 

- All instructions can be completed in 1 or 2 instruction cycles. 

- Table lookup instructions 

- 63 powerful instruction system 

- Up to 6 levels of hardware stack 

- Bit manipulation instructions 

- Low voltage reset function 

- Multiple package types available 

Peripheral features: 

- Up to 26 bi-directional inputs/outputs 

- Up to 8 channels of 12-bit ADCs 

- Up to 2 channels of 8-bit PWM 

- 4 software controlled SCOM ports 1/2 bias LCD driver 

- One external interrupt input multiplexed with I/O ports 

- Up to two 8-bit programmable timers/counters with overflow interrupt and prescaler function 

- Time base function 

- PFD function