Zilog announced its first series of Flash-based universal infrared remote control (UIR) solutions. Zilog's Crimzon ZLF645 series UIR microcontrollers integrate up to 64 KB of Flash memory with Zilog's ZBase code database. In addition to the Flash memory, several design features have been added to the series, including enhanced IR learning remote functionality. Zilog's customers can now program their applications into Flash memory with a full database at the final manufacturing stage. For instance, with 64 KB of Flash memory, the ZLF645 can store user-programmed data, IR learning signal timing and the IR code database. Also, with an integrated IR learning amplifier, the ZLF645 alleviates the need for an external filter, amplifier, and automatic gain control circuit.

Key features for the solution include the following:

• Crimzon LXMC microcontroller core

• 32/64 KB of Flash memory

• 512 B/1 KB RAM

• Up to 40 I/O pins

• Built in IR Timer

• Patented T8/T16 timer pair

• High and low voltage detection

• Programmable watchdog timer of up to 5 seconds timeout period

• 2 comparators

• 6 interrupt vectors with 23 interrupt sources

• Flexible STOP mode recovery from 14 sources

• Programmable internal port pull up transistor on each port – PO, P1, P2, P3 and P4

• Low STOP mode current

• 2.0 -3.6 V operation

Typically, the ZLF645 with 64 KB of Flash is sold in production volumes ranging from $1.40 to $1.70.