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PDF UPD16435N-001-001 Data sheet ( Hoja de datos )
| Número de pieza | UPD16435N-001-001 | |
| Descripción | DOT MATRIX LCD CONTROLLER/DRIVER | |
| Fabricantes | NEC | |
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD16435, 16435A
DOT MATRIX LCD CONTROLLER/DRIVER
DESCRIPTION
The µPD16435 and 16435A are controllers/drivers for a 119 × 73-dot LCD, and perform LCD full-dot and character
composite display by means of control by a microprocessor that has a 4 or 8-bit data bus. A charge pump type
DC/DC converter is also incorporated, enabling 3 or 5 V single power supply drive.
The µPD16435 uses an external reference clock. The µPD16435A has the on-chip oscillation circuit (external
crystal resonator).
FEATURES
• Can interface to 4 or 8-bit CPU.
• Incorporates 119 segment outputs and 73 common outputs.
(Display duty selectable from 1/35, 1/37, 1/71, 1/73)
• 5 × 7 character font 208 character data configuration character generation ROM and 16 character data configuration
character generation RAM, allowing composite full-dot and character display
• Incorporates extended display functions such as magnification, lateral scrolling, blink, reverse, etc.
• Operating voltage: 2.7 V to 5.5 V
• On-chip DC/DC converter: Selectable between ×4 set-up circuit and ×2 step-up circuit
• On-chip temperature correction circuit
• Master/slave operation capability
• On-chip power-on reset circuit
• On-chip oscillation circuit (µPD16435A)
• 232-pin TCP (Tape Carried Package)
ORDERING INFORMATION
Part Number
µPD16435N-001-×××
µPD16435N-001-001
µPD16435N-001-002
µPD16435AN-001-×××
µPD16435AN-001-001
µPD16435AN-001-052
Package
TCP (TAB), Standard ROM code
Standard quad TCP (Conforms to EIAJ), Standard ROM code
Standard dual TCP (Output OLB: 0.25 mm pitch), Standard ROM code
TCP (TAB), Standard ROM code
Standard quad TCP (Conforms to EIAJ), Standard ROM code
Standard dual TCP (Output OLB: 0.25 mm pitch), Standard ROM code
Explanation of Part Number
µPD16435 (A) N-xxx-xxx
TCP code
ROM code
The TCP model is a custom model. For details, consult NEC sales representative.
Document No. S10298EJ3V0DS00 (3rd edition)
Date Published April 1997 N
Printed in Japan
© 1995
1 page  
µPD16435, 16435A
Pin Name Pin No. Input/Output
V1 221 Output
V2 to V5
220
to
217
VIN(–)
VIN(+)
224
223
VCC, GND1 232, 256
VDD, GND2 257, 222
Input
Input
–––
–––
3/5 236
Input
C1±, C2±,
C3±
230 to
225
–––
Output Type
–––
–––
Description
LCD drive power supply pin
Internal OP-amp output
LCD drive power supply pins
Can be adjusted by addition of external resistor.
––– Liquid crystal drive power supply OP-amp input pins
––– Logic power supply, GND
––– Liquid crystal drive (step-up) power supply, GND
Drive voltage selection pin
––– “1” → VDD = 3 V (×4 step-up circuit selected)
“0” → VDD = 5 V (×2 step-up circuit selected)
A 1 µF tantalum or ceramic capacitor should be connected
–––
externally.
REFERENCE CLOCK
Product Name
µPD16435
µPD16435A
Reference Clock
External input
On-chip oscillation circuit (External crystal resonator)
OSC CIRCUIT (µPD16435A)
OSC1
OSC2
4.19 MHz
5
5 Page 
µPD16435, 16435A
(10) Extension Register (Register Address = 1000B)
Performs magnification, reverse, cursor, and time mark setting.
MSB
LSB
b3 b2 b1 b0
× : Don’t Care
After powering on
0 000
In case of magnification setting
00: Standard
01: ×2 horizontal
10: ×2 vertical
11: ×4 magnification (×2 horizontal & vertical)
Magnification display is performed at any line position; characters of different
sizes cannot be displayed on the same line.
Line specification magnification display is possible by setting an extension Y
address after this command, and multiple-line magnification display is possible
by setting consecutive extension Y address.
In case of reverse setting
00: Reverse cancellation (line specification)
01: Reverse (line specification)
10: Reverse cancellation (full screen)
11: Reverse (full screen)
Line specification reverse display is possible by setting an extension Y address
after this command, and multiple-line reverse display is possible by setting
consecutive extension Y addresses.
Regarding the reverse display Y address direction, a total of 9 dots (7 character
part dots + 1 cursor part dot + 1 top space dot) are reversed.
In the case of ×2 vertical magnification or ×4 magnification, a total of 18 dots
(14 character part dots + 2 cursor part dots + 2 top space dots) are reversed.
In case of cursor setting
00: Cursor non-display
01: Cursor display (blinking stopped)
10: Cursor display (blink operation)
11: Don’t Care
Blinking display can be performed at any address by specifying an extension X
and Y address after this command. The specification is for one address only.
The address specification should be performed in the order: X address → Y address.
In case of character blink setting
X0: Blinking stopped
X1: Blink operation
Blinking can be performed at any address by specifying an extension X and Y
address after this command. The specification is for one address only.
The address specification should be performed in the order: X address → Y address.
Extension function setting
00: Magnification setting
01: Reverse setting
10: Cursor setting
11: Character blink setting
11
11 Page | ||
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