UPD16488A Datasheet, PDF (1/91 Pages) NEC – 1/92 DUTY LCD CONTROLLER/DRIVER WITH FOUR-LEVEL GRAY SCALE, ON-CHIP RAM

DATA SHEET
MOS INTEGRATED CIRCUIT
µPD16488A
1/92 DUTY LCD CONTROLLER/DRIVER WITH FOUR-LEVEL GRAY SCALE, ON-CHIP RAM
DESCRIPTION
The µPD16488A is a controller/driver which includes display RAM for full-dot LCDs that can provide a four-level gray
scale display. This IC is able to drive full-dot LCDs that contain up to 128 x 92 dots.
FEATURES
• LCD controller/driver with on-chip display RAM
• Full dot outputs: 128 segment outputs and 92 common outputs
• Can operate using single power supply (logic system) in range from 1.7 to 3.6 V.
• Selection of four levels of gray scales from among 33 possible levels (four-frame rate control + 8 pulse width
modulation)
• Serial data input and 8-bit parallel data input (i80 series interface and M68 series interface)
• Dot display RAM: 128 x 128 x 2 bits
• On-chip booster: Switchable from x2 to x9 modes
• Selectable bias levels: 1/12 to 1/7 bias (normal display), 1/6 or 1/5 bias (partial display)
• Duty settings: 1/92 to 1/1 duty
• On-chip voltage divider resistor
• On-chip oscillator
ORDERING INFORMATION
Part Number
µPD16488AP
µPD16488AW
Package
Chip
Wafer
Remark Purchasing the chip/wafer entails the exchange of documents such as a separate memorandum or product
quality, so please contact one of our sales representative.
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. S15745EJ2V0DS00 (2nd Edition)
Date Published December 2001 NS CP(K)
The mark  shows major revised points.
2001