NT7538
Overview
The NT7538 is a single-chip LCD driver for dot-matrix liquid crystal displays, which is directly connectable to a microcomputer bus. It accepts 8-bit parallel or serial display data directly sent from a microcomputer and stores it in an on-chip display RAM.
- 132 x 65-dot graphics display LCD controller/driver for black/white STN LCD
- RAM capacity: 132 x 65 = 8,580 bits
- 8-bit parallel bus interface for both 8080 and 6800 series, 4-wire Serial Peripheral Interface (SPI)
- Direct RAM data display using the display data RAM. When RAM data bit is 0, it is not displayed. When RAM data bit is 1, it is displayed. (At normal display)
- Many command functions: Read/Write display data, display ON/OFF, Normal/Reverse display, page address set, display start line set, LCD bias set, electronic contrast controls, V0 voltage regulation internal resistor ratio set, read modify write, segment driver direction select, power save.
- Other command functions: Partial display, partial start line set, N-Line inversion.
- Power supply voltage: - VDD = 1.8 ~ 3.6 V - VDD2 = 1.8 ~ 3.6 V - V0 = 4.0 ~ 14.2 V - VOUT = 14.2 V Max.
- 2X / 3X / 4X / 5X on chip DC-DC converter
- On chip LCD driving voltage generator or external power supply selectable
- 64-step contrast adjuster and on chip voltage follower
