UPD75312B Description
DATA SHEET MOS INTEGRATED CIRCUIT µPD75312B, 75316B 4-BIT SINGLE-CHIP MICROPUTER The µPD75316B is a 75X Series 4-bit single-chip microputer capable of the same data processing as an 8bit microputer. It is a low-voltage operation version of the µPD75316 with an on-chip LCD controller/driver. Operation at an ultralow voltage of 2.0 V is possible.
UPD75312B Key Features
- Ultra-low-voltage operation possible: VDD = 2.0 to 6.0 V
- Instruction execution time adjustment function
- Can be driven by two 1.5-V manganese batteries
- On-chip memory
- Program memory (ROM) : 16256 × 8 bits (µ PD75316B) : 12160 × 8 bits (µ PD75312B)
- Data memory (RAM) : 1024 × 4 bits convenient in high-speed operation and power saving
- 0.95 µ s, 1.91 µs, 15.3 µs (@ 4.19 MHz)
- 122 µs (@ 32.768 kHz)
- On-chip programmable LCD controller/driver
- LCD drive voltage: 2.0 V to VDD