FEATURES

• Program memory (ROM)

• μPD67B: 1,002 × 10 bits

• μPD68B: 2,026 × 10 bits

• Data memory (RAM): 32 × 4 bits

• On-chip carrier generator for infrared remote control: Each high-/low-level width can be set from 250 ns to 64

μs (@ fX = 4 MHz operation) via modulo registers

• 9-bit programmable timer: 1 channel

• Instruction execution time: 16 μs (@ fX = 4 MHz operation: ceramic oscillation)

• Stack level: 1 level (stack RAM is also used as data memory RF)

• I/O pins (KI/O): 8

• Input pins (KI): 4

• Sense input pins (S0, S2): 2

• S1/LED pin (I/O): 1 (when in output mode, this is the remote control transmission display pin)

• Power supply voltage: VDD = 1.65 to 3.6 V

• Operating ambient temperature: TA = –40 to +85°C

• Oscillation frequency: fX = 3.5 to 4.5 MHz

• On-chip POC circuit and RAM retention detector