Low-cost 8-bit MCUs combine established architecture and valuable peripherals

Freescale Semiconductor has added two new MCUs to its low-power MC9S08Q family, offering 2kbytes or 4kbytes of Flash memory in an 8-pin package for cost-sensitive applications.

The 2kbyte MC9S08QA2 and 4kbyte MC9S08QA4 also provide 160 bytes and 256 bytes of RAM respectively, as well as an advanced 10-bit ADC, and systemmanagement features. These include low voltage detection, Power-On Reset (POR), watchdog, and security for Flash and RAM. Both devices have tightly-integrated peripherals, including an analogue comparator, 16-bit timer and internal clock source to minimise external components. Package options are SOIC-8, PDIP-8 and DFN-8, presenting a broad selection for designers.

For added flexibility, the integrated Flash memory can be used for EEPROM emulation. It is programmable across the whole operating range of the device, allowing in-application reprogramming in virtually any environment.

In addition, developers using the new MCUs benefit from a convenient single-wire debugging and emulation interface that eliminates the need for expensive emulation tools.

 

FEATURES Operating voltage range: 1.8V to 3.6V 10MHz internal bus speed 100,000 cycles typical write-erase duration

APPLICATIONS Disposable medical instruments Remote Keyless Entry (RKE) systems Small appliances Building control and security Industrial controls

 

 

Freescale Semiconductor/s08