ETC NT3881DF/A-01

NT3881D
Dot Matrix LCD Controller and Driver
Features
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Internal LCD drivers
16 common signal drivers
40 segment signal drivers
(can be externally extended to 400 segments
using NT3882)
Maximum display dimensions
40 characters * 2 lines or
80 characters * 1 line
Interfaces with 4-bit or 8-bit MPU
Versatile display functions provided on chip:
Display Clear, Cursor Home, Display ON/OFF,
Cursor ON/OFF, Character Blinking, Cursor
Shift, and Display Shift
Three duty factors, selected by PROGRAM:
1/8, 11/11, and 1/16
Displays Data RAM (DD RAM): 80 X 8 bits
(displays up to 80 characters)
Character Generator RAM (CG RAM):
64 X 8 bits for general data,
8 5 X 8 programmable dot patterns, or
4 5 X 10 programmable dot patterns
Low voltage reset
NOVATEK Identification code
Bonding option for A-type and B-type waveform
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Character Generator ROM (CG ROM):
3 kinds of CG ROM sizes:
192 characters:
160 5 X 8 dot patterns
32 5 X 10 dot patterns
240 characters:
192 5 X 8 dot patterns
48 5 X 10 dot patterns
256 characters:
192 5 X 8 dot patterns
64 5 X 10 dot patterns
Custom CG ROM is also available
Built-in power-on reset function
Logic power supply: single +5V supply
LCD driver power supply: V1 - V5
(VDD+0.3 - VDD-13.5)
Three oscillator operations
(Freq. = 250KHz - 270KHz):
• Internal oscillation
• Ceramic resonator
• External clock
CMOS Process
Available in 80-pin QFP or in CHIP FORM
General Description
The NT3881D is a dot matrix LCD controller and driver
LSI that can operate with either a 4-bit or an 8-bit
microprocessor (MPU). NT3881D receives control
character codes from the MPU, stores them in an
internal RAM (up to 80 characters), transforms each
character code into a 5 X 7, 5 X 8, or 5 X 10 dot matrix
character pattern, and then displays the codes on the
LCD panel. The built-in Character Generator ROM
consists of 256 different character patterns.
The NT3881D also contains Character Generator RAM
where the user can store 8 different character patterns at
run time. These memory features make character display
flexible. NT3881D also provides many display
instructions to achieve versatile LCD display functions.
The NT3881D is fabricated on a single LSI chip using the
CMOS process, resulting in very low power
requirements.
With several NT3882 driver ICs connected to the
NT3881D, up to 80 characters can be displayed.
1
March ,2000
V2.2
NT3881D
S
E
G
3
9
S
E
G
4
0
C
O
M
1
6
C
O
M
1
5
C
O
M
1
4
C
O
M
1
3
C
O
M
1
2
C
O
M
1
1
C
O
M
1
0
C
O
M
9
C
O
M
8
C
O
M
7
C
O
M
6
C
O
M
5
C
O
M
4
C
O
M
3
C
O
M
2
C
O
M
1
D
B
7
D
B
6
D
B
5
D
B
4
D
B
3
D
B
2
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
Pin Configuration
SEG38
65
40
DB1
SEG37
66
39
DB0
SEG36
67
38
E
SEG35
68
37
R/W
SEG34
69
36
RS
SEG33
70
35
D
SEG32
71
34
M
SEG31
72
33
VDD
SEG30
73
32
CL2
SEG29
74
31
CL1
SEG28
75
30
V5
SEG27
76
29
V4
SEG26
77
28
V3
SEG25
78
27
V2
SEG24
79
26
V1
SEG23
80
25
OSC2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
UM3881DF
NT3881DF
S
E
G
2
2
S
E
G
2
1
S
E
G
2
0
S
E
G
1
9
S
E
G
1
8
S
E
G
1
7
S
E
G
1
6
S
E
G
1
5
S
E
G
1
4
S
E
G
1
3
S
E
G
1
2
S
E
G
1
1
S
E
G
1
0
S
E
G
9
S
E
G
8
S
E
G
7
S
E
G
6
S
E
G
5
S
E
G
4
S
E
G
3
S
E
G
2
S
E
G
1
G
N
D
O
S
C
1
2
NT3881D
Pad Configuration
S
E
G
2
3
S
E
G
2
4
S
E
G
2
5
S
E
G
2
6
S
E
G
2
7
S
E
G
2
8
S
E
G
2
9
S
E
G
3
0
S
E
G
3
1
S
E
G
3
2
S
E
G
3
3
S
E
G
3
4
S
E
G
3
5
S
E
G
3
6
S
E
G
3
7
S
E
G
3
8
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
SEG22
1
64
SEG39
SEG21
2
63
SEG40
SEG20
3
62
SEG19
4
61
SEG18
5
60
SEG17
6
59
SEG16
7
58
SEG15
8
57
SEG14
9
56
SEG13
10
55
COM9
SEG12
11
54
COM8
SEG11
12
53
COM7
SEG10
13
52
COM6
SEG9
14
51
COM5
SEG8
15
50
COM4
SEG7
16
49
COM3
SEG6
17
48
COM2
SEG5
18
47
COM1
SEG4
19
46
DB7
SEG3
20
45
DB6
SEG2
21
DB5
SEG1
22
43
DB4
GND
23
V
D
D
B
44
42
DB3
OSC1
24
33
41
DB2
NT3881DH
25
26
27
28
29
30
31
32
O
S
C
2
V
1
V
2
V
3
V
4
V
5
C
L
1
C
L
2
3
81
V
D
D
A
34
35
36
37
38
39
40
M
D
R
S
R
/
W
E
D
B
0
D
B
1
COM1
6
COM1
5
COM1
4
COM1
3
COM1
2
COM1
1
COM1
0
NT3881D
Block Diagram
4
NT3881D
Pin and Pad Descriptions
Pin and Pad No.
Designation
I/O
External
Connection
1 - 22
SEG22 - SEG1
O
LCD panel
24, 25
OSC1, OSC2
26 - 30
V1 - V5
P
Power supply
31
CL1
O
NT3882
Clock to latch serial data D sent to NT3882.
32
CL2
O
NT3882
Clock to shift serial data D
33, 81
VDDA, VDDB
P
Power supply
Description
Segment signal output pins
Pins connected to resistor or ceramic filter for
internal clock oscillation. For external clock
operation, clock inputs to OSC1.
Power supply for LCD driver
VDD: +5V
A-Type waveform: VDD bond to VDDA
B-Type waveform: VDD bond to VDDB
23
GND
P
Power supply
34
M
O
NT3882
Switch signal to convert LCD drive waveform to
AC
35
D
O
NT3882
Character pattern data corresponding to each
common signal is transmitted serially from this
output. 0-Non selection, 1-selection.
36
RS
I
MPU
Register select signal
0: Instruction register (write)
Busy flag, address counter (read)
1: Data register (write, read)
37
R/W
I
MPU
Read/Write control signal
0: Write
1: Read
38
E
I
MPU
Read/Write start signal
39 - 42
DB0 - DB3
I/O
MPU
Lower 4 tri-state bi-directional data bus for
transmitting data between MPU and NT3881D.
Not used during 4-bit operation.
43 - 46
DB4 - DB7
I/O
MPU
Higher 4 tri-state bi-directional data bus for
transmitting data between MPU and NT3881D.
DB7 is also used as busy flag.
47 - 62
COM1 - COM16
O
LCD panel
Common signal output pins
63 - 80
SEG40 - SEG23
O
LCD panel
Segment signal output pins
5
GND: 0V
NT3881D
character patterns from the CG RAM. Character codes
from 10H to 1FH and from 80H to 9FH map to full
character patterns. Character codes from E0H to FFH
are assigned to generate 5 X 10 dot character patterns,
and other codes are used to generate 5x8 dot character
patterns.
Functional Description
The NT3881D is a dot-matrix LCD controller and driver
LSI. It operates with either a 4-bit or an 8-bit
microprocessor (MPU). The NT3881D receives both
instructions and data from the MPU. Some instructions
set operation modes, such as the function mode, data
entry mode, and display mode; as well as some control
LCD display functions, such as clear display, restore
display, shift display, and cursor. Other instructions
include read and write both data and addresses. All
instructions allow users convenient and powerful
functions to control the LCD dot-matrix displays.
2. 240 Characters:
The CG ROM contains 192 5 X 8 dot character patterns
and 48 5 X 10 dot character patterns. An example of this
type is the NT3881D-02, in which the relation between
the character codes and character patterns is shown in
Table 2.
The character codes from 00H to 0FH are used to get
character patterns from the CG RAM. Character codes
from 10H to 1FH and from E0H to FFH are assigned to
generate 5 X 10 dot character patterns, and other codes
to generate 5 X 8 dot character patterns. No null
character pattern exists in this type. Note that the
underlined cursor, displayed on the 8th duty may be
obscure if the 8th row of a dot character pattern is coded.
We recommend that users display the cursor in the
blinking mode if they code 5x8 dot character patterns is
their custom CG ROM.
Data is written into and read from the Data Display RAM
(DD RAM) or the Character Generator RAM (CG RAM).
As display character codes, the data stored in the DD
RAM decodes a set of dot-matrix character patterns that
are built into the Character Generator ROM (CG ROM).
The CG ROM, with many character patterns (up to 256
patterns), defines the character pattern fonts. The
NT3881D regularly scans the character patterns through
the segment drivers. The CG RAM stores character
pattern fonts at run time if users intend to show character
patterns that are not defined in the CG ROM. This
feature makes character display flexible. Other unused
bytes can be used as general-purpose data storage.
3. 256 Characters:
The CG ROM contains 192 5 X 8 dot character patterns
and 64 5 X 10 dot character patterns. No adequate
example is presented here.
The only difference between this type and the just
mentioned second type is that the character codes from
00H to 0FH get character patterns from the CG ROM
rather than from the CG RAM. These character codes
are assigned to generate 5 X 10 dot character patterns.
In this application, the CG RAM would be employed as a
general-purpose data storage.
The LCD driver circuit consists of 16 common signal
drivers and 40 segment signal drivers allowing a variety
of application configurations to be implemented.
Additionally, the user can extend display size by
cascading the segment driver LSI NT3882. The
maximum display dimensions can be either 80
characters in a 1-line display or 40 characters in a 2-line
display.
Character Generator ROM (CG ROM)
Custom character patterns are available by maskprogramming ROM. For convenience of character
pattern development, NOVATEK has developed a userfriendly editor program for the NT3881D to help
determine the character patterns users prefer. By
executing the program on the computer, users can easily
create and modify their character patterns. By
transferring the resulting files generated by the program
through a modem or some other communication
method, the user and NOVATEK have established a
reliable, fast link for programming the CG ROM.
The character generator ROM generates LCD dot
character patterns from the 8-bit character pattern codes.
The NT3881D provides 3 CG ROM configurations:
1. 192 Characters:
The CG ROM contains 160 5 X 8 dot character patterns
and 32 5 X 10 dot character patterns. An example is the
NT3881D-01, in which the relation between the character
codes and character patterns is shown in Table 1. The
character codes from 00H to 0FH are used to get
6
NT3881D
Absolute Maximum Ratings*
*Comments
Power Supply Voltage (VDD) . . . . . . . . . . -0.3V to +0.7V
Power Supply Voltage(V1 to V5) . VDD -13.5V to VDD+0.3V
Input Voltage (VI) . . . . . . . . . . . . . . . -0.3V to VDD +0.3V
Operating Temperature (TOPR) . . . . . . . . -10°C to +60°C
Storage Temperature (TSTG) . . . . . . . . -55°C to +125°C
Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to this device.
These are stress ratings only. Functional operation of
this device at these or any other conditions above those
indicated in the operational sections of this specification
is not implied or intended. Exposure to the absolute
maximum rating conditions for extended periods may
affect device reliability.
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All voltage values are referenced to GND = 0V
V1 to V5, must maintain VDD ≥ V1 ≥ V2 ≥ V3 ≥ V4 ≥ V5.
DC Electrical Characteristics (VDD = 5.0V, GND = VEE = 0V, TA = 25°C)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Conditions
Applicable Pin
VIH1
"H" Level Input Voltage (1)
2.2
-
VDD
V
VIL1
"L" Level Input Voltage (1)
-0.3
-
0.8
V
VIH2
"H" Level Input Voltage (2)
VDD -1.0
-
VDD
V
VIL2
"L" Level Input Voltage (2)
GND
-
1.0
V
VOH1
"H" Level Output Voltage (1)
2.4
-
-
V
IOH = -0.25mA
VOL1
"L" Level Output Voltage (1)
-
-
0.4
V
IOL = 1.2mA
VOH2
"H" Level Output Voltage (2)
0.9 VDD
-
-
V
IOH = -0.04mA
VOL2
"L" Level Output Voltage (2)
-
-
0.1 VDD
V
IOL = 0.04mA
VCOM
Driver Voltage Descending (COM)
-
-
2.9
V
ID = 0.05mA
COM1 - 16
VSEG
Driver Voltage Descending (SEG)
-
-
3.8
V
ID = 0.05mA
SEG1 - 40
IIL
Input Leakage Current
-1
-
1
µA
VIN = 0 to VDD
-IP
Pull-up MOS Current
50
125
250
µA
VDD = 5V
IOP
Supply Current Power Supply
Current
-
0.3
0.5
mA
Rf oscillation,
from external
clock VDD = 5V,
fOSC = fCP =
270KHz
7
DB0 - DB7, RS,
R/W, E
OSC1
DB0 - DB7
(TTL)
CL1, CL2, M, D
(CMOS)
RS, R/W,
DB0-DB7
VDD
NT3881D
DC Electrical Character (continued)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Conditions
Applicable Pin
External Clock Operation
fCP
External Clock Operating
Frequency
125
270
350
KHz
tDUTY
External Clock Duty Cycle
45
50
55
%
tRCP
External Clock Rise Time
0.1
-
0.5
µs
tFCP
External Clock Fall Time
0.1
-
0.5
µs
190
270
350
KHz
Rf = 91KΩ ± 2%
Ceramic resonator
Internal Clock Operation (RC Oscillator)
fOSC
Oscillator Frequency
Internal Clock Operation (Ceramic Resonator Oscillator)
fOSC
Oscillator Frequency
245
250
255
KHz
VLCD1
VLCD2
LCD Driving Voltage
4.6
3.0
-
VDD
V
VDD - V5
1/5 bias
1/4bias
AC Characteristics
Read Cycle
Symbol
(VDD = 5.0V, GND = VEE = 0V, TA = 25°C)
Parameter
Min.
Typ.
Max.
Unit
Conditions
tCYCE
Enable Cycle Time
500
-
-
ns
Figure 1
tWHE
Enable "H" Level Pulse Width
300
-
-
ns
Figure 1
-
-
25
ns
Figure 1
-
-
ns
Figure 1
10
-
-
ns
Figure 1
-
-
190
ns
Figure 1
20
-
-
ns
Figure 1
tRE, tFE
Enable Rise/Fall Time
1
60
tAS
RS, R/W Setup Time
tAH
RS, R/W Address Hold Time
tRD
Read Data Output Delay
tDHR
Read Data Hold Time
2
100
8
NT3881D
AC Characteristics (continued)
Write Cycle
Symbol
(VDD = 5.0V, GND = VEE = 0V, TA = 25°C)
Parameter
Min.
Typ.
Max.
Unit
Conditions
tCYCE
Enable Cycle Time
500
-
-
ns
Figure 2
tWHE
Enable "H" Level Pulse Width
300
-
-
ns
Figure 2
-
-
25
ns
Figure 2
-
-
ns
Figure 2
tRE, tFE
Enable Rise/Fall Time
1
60
tAS
RS, R/W Setup Time
tAH
RS, R/W Address Hold Time
10
-
-
ns
Figure 2
tDS
Data Output Delay
100
-
-
ns
Figure 2
tDHR
Data Hold Time
10
-
-
ns
Figure 2
2
100
Notes: 1: 8-bit operation mode
2: 4-bit operation mode
Timing Characteristics of Interface Signals with Segment Driver LSI NT3882
(VDD = 5V, GND = VEE = 0V, TA = 25°C)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Conditions
tCWH
Clock Pulse Width High
800
-
-
ns
Figure 3
tCWL
Clock Pulse Width Low
800
-
-
ns
Figure 3
tSU
Data Setup Time
300
-
-
ns
Figure 3
tDH
Data Hold Time
300
-
-
ns
Figure 3
tCSU
Clock Setup Time
500
-
-
ns
Figure 3
tDM
M Delay Time
-1000
-
1000
ns
Figure 3
Min.
Typ.
Max.
Unit
Conditions
Power Supply Conditions Using Internal Reset Circuit
Symbol
Parameter
tRON
Power Supply Rise Time
0.1
-
10
ns
Figure 4
tOFF
Power Supply OFF Time
1
-
-
ms
Figure 4
9
NT3881D
Timing Waveforms
Read Operation
Figure 1.Bus Read Operation Sequence
(Reading out data from NT3881D to MPU)
Write Operation
Figure 2. Bus Write Operation Sequence
(Writing data from MPU to NT3881D)
Interface Signals with Segment Driver LSI
Figure 3. Sending Data to Segment Driver LSI NT3882
10
NT3881D
Interface Signals with Segment Driver LSI (continued)
Figure 4. tOFF stipulates the time of power OFF for instantaneous
power supply to or when power supply repeats ON and OFF.
Note 1: The NT3881D has three clock options:
A. Internal Oscillator Operation (With Ceramic Filter)
Rf : 1MΩ ± 10%
Rd : 3.3KΩ ± 5%
C1 = C2 : 680pF ± 10%
B. Internal Oscillator (With Rf Resistor)
Only Rf may be connected between OSC1 and OSC2.
The wire connection Rf must be as short as possible.
C. External Clock Operation
OSC1 and OSC2.
Note 2 : Input/Output Terminals:
A. Input Terminal
Applicable Terminal : E (No Pull Up MOS)
11
NT3881D
Applicable Terminals: RS, R/W (with Pull Up MOS)
B. Output Terminal
Applicable Terminals: CL1, CL2, M, D
C. I/O Terminal
Applicable Terminals: DB0 to DB7
12
NT3881D
Table 1. Correspondence between Character Codes and Character Patterns
(NOVATEK Standard NT3881D-01)
13
NT3881D
Table 2. Correspondence between Character Codes and Character Patterns
(NOVATEK Standard NT3881D-02)
14
NT3881D
Instruction Set
Instruction
Display Clear
Display/
Cursor Home
Code
Function
RS
RW
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
Clear entire display area, restore
display from shift, and load
address counter with DD RAM
address 00H.
Execution
time (max)
(fOSC =
250KHz)
1.64ms
*
Restore display from shift and
load address counter with DD
RAM address 00H.
1.64ms
40µs
0
0
0
0
0
0
0
1
I/D
S
Specify direction of cursor
movement and display shift
mode. This operation takes
place after each data transfer
(read/write).
Display
ON/OFF
0
0
0
0
0
0
1
D
C
B
Specify activation of display (D)
cursor (C) and blinking of
character at cursor position (B).
40µs
Display/
Cursor Shift
0
0
0
0
0
1
S/C
R/L
*
*
Shift display or move cursor.
40µs
Function Set
0
0
0
0
1
DL
N
F
*
*
Set interface data length (DL),
number of display line (N), and
character font (F).
40µs
RAM Address
Set
0
0
0
1
Load the address counter with a
CG RAM address. Subsequent
data access is for CG RAM
data.
40µs
DD RAM
Address Set
0
0
1
ADD
Load the address counter with a
DD RAM address. Subsequent
data access is for DD RAM
data.
40µs
Busy Flag/
Address
Counter Read
0
1
BF
AC
Read Busy Flag (BF) and
contents of Address Counter
(AC).
0µs
CG RAM/
DD RAM
Data Write
1
0
Write data
Write data to CG RAM or DD
RAM.
40µs
CG RAM/
DD RAM
Data Read
1
1
Read data
Read data from CG RAM or DD
RAM.
40µs
Entry Mode
Set
I/D = 1 : Increment
S = 1 : Display Shift On
D = 1 : Display On
C = 1 : Cursor Display On
B = 1 : Cursor Blink On
S/C = 1 : Shift Display
R/L = 1 : Shift Right
DL = 1 : 8-Bit
N = 1 : Dual Line
F = 1 : 5x10 dots
BF = 1 : Internal Operation
BF = 1 : Ready for Instruction
ACG
I/D = 0 : Decrement
DD RAM : Display Data RAM
S/C
R/L
DL
N
F
= 0 : Move Cursor
= 0 : Shift Left
= 0 : 4-Bit
= 0 : Signal Line
= 0 : 5x8 dots
Note 1: Symbol "*" signifies an insignificant bit (disregard).
Note 2: Correct input value for "N" is predetermined for each model.
15
CG RAM : Character Generator
RAM
ACG :
Character Generator
RAM Address
ADD :
Display Data RAM
Address
AC :
Address Counter
NT3881D
Interface to LCD
(1) Character Font and Number of Lines
The NT3881D provides a 5 X 7 dot character font 1-line
mode, a 5 X 10 dot character font 1-line mode and a
5 X 7 dot character font 2-line mode, as shown in the
table below.
Three types of common signals are available as
displayed in the table. The number of lines and the font
type can be selected by the program.
Number of Lines
Character Font
Number of Common Signals
Duty Factor
1
5 X 7 dots + Cursor
(or 5x8 dots)
8
1/8
1
5 X 10 dots + Cursor
11
1/11
2
5 X 7 dots + Cursor
(or 5x8 dots)
16
1/16
(2) Connection to LCD
The following 4 LCD connection examples show the various combinations between characters and lines.
NT3881D can directly drive the following combinations:
(a) 5 X 8 Font - 8 character X 1 line (1/8 duty cycle, 1/4 bias)
LCD PANEL
COM1
COM8
SEG1
NT3881D
SEG40
16
NT3881D
(b) 5 X 10 Font - 8 character X 1 line (1/11 duty cycle, 1/4 bias)
LCD PANEL
COM1
COM8
NT3881D
SEG1
SEG40
COM11
COM9
(c) 5 X 8 Font - 8 character X 2 lines (1/16 duty cycle, 1/5 bias)
LCD PANEL
COM1
COM8
NT3881D
SEG1
SEG40
COM16
COM9
17
NT3881D
(d) 5 X 8 Font - 16 character X 1 line (1/16 duty cycle, 1/5 bias)
LCD PANEL
COM1
COM8
SEG1
NT3881D
SEG40
COM16
COM9
18
NT3881D
(3) Bias Power Connection
NT3881D provides 1/4 or 1/5 bias for various duty cycle applications. The power division voltage is described in the
following table. The connection of NT3881D, power supply, and resistors are also shown as follows:
Power Division
1/8, 1/11 Duty Cycle - 1/4 Bias
1/16 Duty Cycle - 1/5 Bias
V1
VDD - 1/4 VLCD
VDD - 1/5 VLCD
V2
VDD - 1/2 VLCD
VDD - 2/5 VLCD
V3
VDD - 1/2 VLCD
VDD - 3/5 VLCD
V4
VDD - 3/4 VLCD
VDD - 4/5 VLCD
V5
VDD - VLCD
VDD - VLCD
VDD
VDD
VDD
VDD
R
R
V1
V1
R
R
V2
NT3881D
V2
V LCD
R
NT3881D
V3
V3
R
R
V4
V4
R
R
V5
V5
VR
VR
VEE
VEE
Note: The resistance value depends on the LCD panel size.
19
V LCD
NT3881D
(4) LCD Waveform
A-type, 1/8 Duty Cycle, 1/4 Bias
A-type, 1/11 Duty Cycle, 1/4 Bias
A-type, 1/16 Duty Cycle, 1/5 Bias
20
NT3881D
Application Circuit (for reference only)
LCD PANEL
C1 - C16
S1
-
S1
S40
-
S40
S1
-
S40
DL1
D
DR2
CL2
DL1
DL2
CL1
DL2
DR1
NT3882
M
DR2
CL2
CL1
NT3882
FCS
DR1
M
V DD
SEL1
FCS
V DD
SEL1
SEL2
GND
GND
V1
V2
V3
V4
V5
V6
V1
SEL2
V2
V3
V4
V5
CL2
CL1
NT3881D
M
V DD
GND
V1
V2
V3
V4
V5
VR
R
R
C
R
C
R
C
R
C
C
GND or other
negative voltage
21
V6
NT3881D
Bonding Diagram
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
1
64
2
63
3
62
4
61
5
60
6
59
7
58
8
57
NT3881DH
56
9
10
55
Y
11
54
12
53
X
(0, 0)
13
52
14
51
15
50
16
49
17
48
18
47
19
46
20
45
21
44
22
43
23
42
33
24
25
26
27
28
29
30
31
32
81
41
34
35
ÆÄÊÈ µ
* Substrate Connect to VDD or keep floating
* Pad window area: 120µm X 110µm
22
36
37
38
39
40
ÆËÉÄ µ
NT3881D
Bonding Dimensions
Unit: µm
Pad. No.
Designation
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
GND
OSC1
OSC2
V1
V2
V3
V4
V5
CL1
CL2
VDDA
M
D
RS
R/W
E
DB0
DB1
X
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1469
-1183
-1033
-883
-733
-583
-433
-283
-133
76
268
418
568
719
870
1020
1170
Pad. No.
Y
1743
1593
1443
1293
1143
993
843
693
543
393
243
93
-57
-207
-357
-507
-657
-807
-957
-1107
-1257
-1407
-1557
-1707
-1862
-1862
-1862
-1862
-1862
-1862
-1862
-1862
-1691
-1862
-1862
-1862
-1862
-1862
-1862
-1862
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
23
Designation
DB2
DB3
DB4
DB5
DB6
DB7
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM16
SEG40
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
VDDB
X
Y
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1469
1125
975
825
675
525
375
225
75
-75
-225
-375
-525
-675
-825
-975
-1125
76
-1707
-1557
-1407
-1257
-1107
-957
-807
-657
-507
-357
-207
-57
93
243
393
543
693
843
993
1143
1292
1443
1593
1743
1763
1763
1763
1862
1862
1862
1862
1862
1862
1862
1862
1862
1862
1862
1862
1862
-1816
NT3881D
Ordering Information
Part No.
Package
Remarks
NT3881DH-01
CHIP FORM
Refer to Table 1
NT3881DF/A-01
80L QFP/A-type waveform
Refer to Table 1
NT3881DF/B-01
80L QFP/B-type waveform
Refer to Table 1
NT3881DH-02
CHIP FORM
Refer to Table 2
NT3881DF/A-02
80L QFP/A-type waveform
Refer to Table 2
NT3881DF/B-02
80L QFP/B-type waveform
Refer to Table 2
24
NT3881D
Package Information
QFP 80L Outline Dimensions
unit: inches/mm
HD
D
64
24
41
E
1
b 40
GD
~~
e
c
25
GE
65
HE
80
D
See Detail F
Seating Plane
y
A
L
A1
A2
GD
L1
Detail F
Symbol
Dimensions in inches
Dimensions in mm
A
0.130 Max.
3.30 Max.
A1
0.004 Min.
0.10 Min.
A2
0.112±0.005
2.85±0.13
b
0.014 +0.004
-0.002
0.35 +0.10
-0.05
c
0.006 +0.004
-0.002
0.15 +0.10
-0.05
D
0.551±0.005
14.00±0.13
E
0.787±0.005
20.00±0.13
e
0.031±0.006
0.80±0.15
GD
0.693 NOM.
17.60 NOM.
GE
0.929 NOM.
23.60 NOM.
HD
0.740±0.012
18.80±0.31
HE
0.976±0.012
24.79±0.31
L
0.047±0.008
1.19±0.20
L1
0.095±0.008
2.41±0.20
y
0.006 Max.
0.15 Max.
θ
0° ~ 12°
0° ~ 12°
Notes:
1. Dimensions D & E do not include resin fins.
2. Dimensions GD & GE are for PC Board surface mount pad pitch
design reference only
25