DESCRIPTION

The μPD753304 is one of the 75XL series 4-bit single-chip microcontroller chips and has a data processing capability comparable to that of an 8-bit microcontroller.

Since it inherits the 75X series CPU, it has upward compatibility.

While the conventional 75X series products with an on-chip LCD controller/driver use an 80-pin package, the μPD753304 is sold as a pellet/wafer to make it possible to be built into portable devices with an LCD display function, etc.

FEATURES

? RC oscillation circuit on chip

· Main system clock: fCC = 3.6 MHz (typical value with 6.8-k? external resistor connected. An internal 10-pF (typ.) capacitor is provided.)

· Subsystem clock : fCT = 47 kHz (typ.) (Both a resistor and a capacitor are provided internally.)

? Processing can be started immediately after standby mode is released.

? Oscillation of the subsystem clock can be stopped in STOP mode.

? Supply voltage: VDD = 2.5 to 5.5 V

? On-chip memory

· Program memory (ROM) : 4096 × 8 bits

· Data memory (RAM) : 256 × 4 bits

? Variable instruction execution time function useful for power saving

· 1.1, 2.2, 4.4, 17.8 μs (in fCC = 3.6 MHz operation)

· 85.1 μs (in fCT = 47 kHz operation)

? Programmable LCD controller/driver on chip

? Sold as a pellet/wafer to make it possible to be built into portable devices with an LCD display function

APPLICATION

Small LCD display device, etc.