UPD16681AP-001 Datasheet PDF - NEC
Part Number | UPD16681AP-001 | |
Description | LCD CONTROLLER/DRIVER FOR DOT MATRIX DISPLAY OF JIS LEVEL 1 AND JIS LEVEL 2 KANJI SETS | |
Manufacturers | NEC | |
Logo | ||
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Preview 1 page No Preview Available ! DATA SHEET
MOS INTEGRATED CIRCUIT
µ PD16681A
LCD CONTROLLER/DRIVER FOR DOT MATRIX DISPLAY OF JIS LEVEL 1
AND JIS LEVEL 2 KANJI SETS
DESCRIPTION
The µPD16681A is a single-chip controller driver that can display Japanese text; including JIS Level 1 kanji, JIS
Level 2 kanji, hiragana, and katakana. Each chip can display up to four lines containing up to eight full width
characters (11 x 12 dots), or up to four lines containing up to 16 half width characters (5 x 12 dots), as well 96
pictographs.
FEATURES
• LCD controller/driver for dot matrix display of JIS Level 1 and JIS Level 2 kanji sets
• On-chip ROM for character generation
−JIS Level 1 + Level 2 kanji (11 x 12 dots) : 6,355 characters
−JIS non-kanji characters (11 x 12 dots) : 453 characters
−Other characters (symbols, etc.) (11 x 12 dots): 256 characters
−Half width alphanumeric characters (5 x 12 dots) : 192 characters
• On-chip RAM for character generation
−8 types (12 x 13 dots)
• On-chip boost circuit : switchable between 3x and 4x modes
• RAM for pictograph data displays : 96 bits
• Outputs : 96 segments, 52 commons
• Duty settings : 1/39 or 1/52
• Switchable data inputs : serial or 8-bit parallel
• On-chip divider resistor
• Selectable bias settings (1/8 bias, 1/7 bias, or 1/6 bias)
• On-chip oscillation circuit
ORDERING INFORMATION
Part number
µPD16681A-001
µPD16681AP-001
Package
Wafer
Chip (COG compliant)
ROM code
Standard
Standard
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. S14207EJ2V0DS00 (2nd edition)
Date Published March 2000 NS CP(K)
Printed in Japan
The mark 5 shows major revised points.
©
1999,2000
|
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µPD16681A
3. PIN FUNCTIONS
3.1 Power Supply System Pins
Pin Symbol
Pin Name
VDD Logic power supply pin
Boost circuit power supply
pin
VSS Logic ground
Driver ground
VLCD
Driver power supply pins
Pad No.
50-54
55-59
29-31
VLC1 - VLC5
Reference power supply
pins for driver
14-28
VLCBS1 - VLCBS3 Bias value setting pins
C1+, C1-
C2+, C2-
C3+, C3-
Capacitor connection pins
2-7
32-49
I/O Description
− Power supply pins for logic and boost circuit
− Ground pins for logic and driver circuit
− Power supply pins for driver. Output pin for internal boost circuit.
Connect a 1-µF capacitor between these pins and the VSS pins
for boosting.
If not using the internal boost circuit, a direct driver power supply
can be input.
− These are reference power supply pins for the LCD driver.
Leave these pins open if an internal bias has been selected.
Connect a capacitor to ground.
− When selecting an internal bias, the bias value can be changed
connecting these pins outside of the IC.
− These are capacitor connection pins for the boost circuit.
Connect a 1-µF capacitor.
Data Sheet S14207EJ2V0DS00
5
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Information | Total 30 Pages | |
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