LC573904 Overview
ENN 6725 CMOS IC LC573904 4-Bit Microcontroller with 4K-Byte ROM, 120 × 4Bits RAM and LCD Driver Preliminary Overview The LC573904 is a CMOS 4-bit microcontroller that operates on low voltage and very low power consumption. It also contains 4K-byte ROM, 128 × 4 bits RAM, LCD drivers and melody function.
LC573904 Key Features
- 1.65V 2.50
- 3.60V 2.00
- Input ports : 4 terminals (S-port : 4 terminals)
- Input / Output ports : 8 terminals (P0 port : 4 terminals, P1 port : 4 terminals) [Notes] When using the P1 port for out
- Output ports : 2 terminals (Buzzer / melody output terminal : 1 terminal, General output port : 1 terminal)
- LCD segment output ports : 32 terminals (Possible to use output port by mask option)
- LCD mon output ports : 4 terminals
- Built-in Step-up / Step-down circuit (6) Melody/Buzzer
- Melody function
- Buzzer output (7) Base timer