UPD753304

DATA SHEET MOS INTEGRATED CIRCUIT µPD753304 4-BIT SINGLE-CHIP MICROCONTROLLER 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. For detailed function descriptions, refer to the following user’s manual. µPD753304 User’s Manual: U12020E FEATURES RC oscillation circuit on chip · Main system clock: fCC = 3.6 MHz (typical value with 6.8-kΩ 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 ...