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SPECIFICATIONS FOR
LCD MODULE
MODEL NO.
BC0802B series
VER.02
FOR MESSRS:
________________________________________________
ON DATE OF:
________________________________________________
APPROVED BY:
________________________________________________
BOLYMIN, INC.
13F-1, 20, TA-LONG RD., TAICHUNG CITY 403, TAIWAN, R.O.C.
WEB SITE:http://www.bolymin.com.tw TEL:+886-4-23293029 FAX:+886-4-23293055
History of Version
Version
01
02
BC0802B series
Contents
NEW VERSION
ADD NO B/L DRAWING
-2-
Date
Note
2006/12/12
SPEC.
2008/03/25
CONTENTS
1. Numbering System
2. Precautions in use of LCD Modules
3. General Specification
4. Absolute Maximum Rating
5. Electrical Characteristics
6. Optical Characteristics
7. Interface Pin Function
8. Power supply for LCD Module and LCD operating voltage adjustment
9. Backlight information
10. Quality Assurance
11. Reliability
12. Appendix (Drawing , EL inverter data , KS0066 controller data)
12-1 Drawing
12-2 KS0066 controller data
12-2.1 Function description
12-2.2 C.G ROM table.
12-2.3 Instruction table
12-2.4 Timing characteristics
12-2.5 Initializing soft ware of LCM
BC0802B series
-3-
1. Numbering System
B
C
0802
B
-
-
-
-
-
xxx
0
1
2
3
4
5
6
7
8
9
0
Brand
Bolymin
1
Module Type
C= character type
G= graphic type
P= TAB/TCP type
2
Format
2002=20 characters, 2 lines
12232= 122 x 32 dots
3
Version No.
A type
4
LCD Color
G=STN/gray
Y=STN/yellow-green
PLED/yellow-green
C=color STN,OLED/RGB
5
LCD Type
R=positive/reflective
P=positive/transflective
B=STN/blue,OLED/blue
F=FSTN
T=TN
D=OLED/blue+yellow
A=OLED/blue+yellow+green
M=positive/transmissive
N=negative/transmissive
6
Backlight type/color
L=LED array/ yellow-green
H=LED edge/white
R=LED array/red
G=LED edge/yellow-green
F=RGB array
I=RGB edge
Q=LED edge/red
N=No backlight
D=LED edge/blue
E=EL/white
B=EL/blue
C=CCFL/white
Y=LED Bottom/yellow
O=LED array/orange
K=LED edge/green
A=LED edge/amber
7
CGRAM Font
(applied only on
character type)
J=English/Japanese Font
E=English/European Font
G=Chinese(simple)
F=Chinese(traditional)
C=English/Cyrillic Font
H=English/Hebrew Font
A=English/Arabic Font
8
View Angle/ Operating
Temperature
B=Bottom/Normal Temperature
T=Top/Normal Temperature
H=Bottom/Wide Temperature
W=Top/Wide Temperature
U=Bottom/Ultra wide Temperature C=9H/Normal Temperature
E=Top/ultra wide temperature
9
Special Code
3=3 volt logic power supply
n=negative voltage for LCD
c=cable/connector
xxx=to be assigned on datasheet
BC0802B series
-4-
O= COG type
F= COF type
L=PLED/OLED
t=temperature compensation for
LCD
p=touch panel
$=RoHS
2. Precaution in use of LCD Module
(1) To avoid applying excessive shocks to the module or making any alterations or modifications
to it.
(2) Don’t make extra holes on the printed circuit board, modify its shape or change the
components of LCD module.
(3) Don’t disassemble the LCM.
(4) Don’t operate it above the absolute maximum rating.
(5) Don’t drop, bend or twist LCM.
(6) Soldering: only to the I/O terminals.
(7) Storage: please storage in anti-static electricity container and clean environment.
(8) Don’t touch the elastmer connecter, especially insert a backlight panel (EL or CCFL)
3. General Specification
(1) Mechanical Dimension
Item
Number of Characters
Module dimension
(LxWxH)
View area
Active area
Dot size
Dot pitch
Character size ( L x W )
Character pitch ( L x W )
Dimension
8characters x 2 Lines
40.0 x 20.0 x 14.5(Max)- LED array B/L
40.0 x 20.0 x 11.5(Max)- NO B/L
36.3 x 13.9
29.37 x 10.65
0.6 x 0.6
0.63 x 0.63
3.12 × 5.01
3.75 × 5.64
(2) Controller IC: KS0066 (or Equivalent) controller
(3) Temperature Range
Normal
Operating
-20 ~+70℃
Storage
-30 ~+80℃
BC0802B series
-5-
Unit
-
mm
mm
mm
mm
mm
mm
mm
4. Absolute Maximum Ratings
4.1 Electrical Absolute Maximum Ratings
Item
(Vss=0V, Ta=25℃)
Max
Unit
Symbol
Min
Supply Voltage For Logic
Vdd-Vss
-0.3
7
V
Supply Voltage For LCD driver
Vdd-Vo
-0.3
13
V
VI
Vss
Vdd
V
TOP
0
+50
℃
TSTG
-10
+60
℃
Top
-20
+70
℃
Tstg
-30
+80
℃
Input Voltage
Normal Type
Wide Temperature Type
4.2 Environmental Absolute Maximum Ratings
Item
Operating
(Min.)
Humidity
Vibration
Shock
Storage
(Max.)
(Min.)
Note(2)
---
Comment
(Max.)
Note(2)
2
4.9M/S
2
29.4M/S
---
Without condensation
2
XYZ Direction
2
XYZ Direction
19.6M/S
490M/S
Note (1) Ta = 0℃ ﹕50Hr Max.
Note (2) Ta≦40℃: 90% RH MAX
Ta > 40℃:Absolute humidity must be lower than the humidity of 90% at 40℃
BC0802B series
-6-
5. Electrical Characteristics
Item
Supply Voltage For Logic
Symbol
Condition
Min
Typ
Max
Unit
Vdd-Vss
-
3.0
-
5.5
V
-
5.5
-
V
Ta=0℃
-
-
-
V
Ta=25℃
-
4.5
-
V
Ta=50℃
-
-
-
V
-
3.8
-
V
*Ta=-20℃
Supply Voltage For LCD
Vdd-Vo
*Wide Temp、Type
*Ta=+70℃
Input High Volt.
VIH
-
2.2
-
Vdd
V
Input Low Volt.
VIL
-
-
-
0.6
V
Output High Volt.
VOH
-
2.4
-
-
V
Output Low Volt.
VOL
-
-
-
0.4
V
Supply Current
Idd
Vdd=5V
-
1.5
-
mA
BC0802B series
-7-
6. Optical Characteristics
a. STN
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
(V)θ
CR≧2
10
45
deg
(H)φ
CR≧2
-30
30
deg
CR
-
3
Response Time
T rise
-
100
150
ms
25℃
T fall
-
150
200
ms
View Angle
Contrast Ratio
6.1
-
Definitions
■View Angles
■Contrast Ratio
Z
Brightness at selected state ( BS )
Brightness at non-selected state ( Bns )
Selected state
( Visual angle direction )
CR =
Brightness (%)
θ
LCD
X
φ
Non-selected state
Bs
Bns
Y
Operating voltage for LCD driving
( Best visual angle direction )
■Response Time
Selected Condition
10 %
tr
td
Rise Time
BC0802B series
Nonselected Condition
90 %
100 %
Brightness
Nonselected Condition
Decay Time ( fall time tf )
-8-
7. Interface Pin Function
Pin No.
Symbol
Level
1
Vss
0V
2
Vdd
5.0V
3
Vo
4
RS
H/L
H: DATA, L: Instruction code
5
R/W
H/L
H: Read (MPU→Module)L: Write(MPU→Module)
6
E
7
DB0/LED+
H/L
Data bit 0
8
DB1
H/L
Data bit 1
9
DB2
H/L
Data bit 2
10
DB3
H/L
Data bit 3
11
DB4/DB0
H/L
Data bit 4/Data bit 0
12
DB5/DB1
H/L
Data bit 5/Data bit 1
13
DB6/DB2
H/L
Data bit 6/Data bit 2
14
DB7/DB3
H/L
Data bit 7/Data bit 3
BC0802B series
Description
Ground
Supply Voltage for logic (option +3V)
(Variable) Operating voltage for LCD
H,H→L Chip enable signal
-9-
8. Power Supply for LCD Module and LCD Operating Voltage a Adjustment
*Standard Type
LCM
Vdd
DC 5V
typ.: 4.5V
Vo
Vss
VR
(Recomment)
*(Option) LCM operating on " DC 3V " input , with external negative voltage
LCM
Vdd
DC 3V
Vss
Vo typ.: 4.5V
VR
Negative volt
-3v
BC0802B series
- 10 -
9.Backlight Information
9.1 Specification
(1) LED array / yellow-green
Parameter
Supply Current
Symbol
ILED
Min
─
Typ
100
Max
Unit
mA
Supply Voltage
V
-
4.0
4.5
V
Reverse Voltage
VR
-
-
8
V
Luminous Intensity
IV
160
-
-
cd/m2
ILED≦100 mA
Wave Length
λp
nm
ILED≦100 mA
Hr.
V≦4.2V
570
-
Life Time
-
100000
Color
Test Condition
V=4.0V
Yellow-green
9.2 Backlight driving methods
a. LED B/L drive from pin2 (Vdd) pin1 (Vss)
a.1 array / yellow-green
+4.0V
b.LED B/L drive from pin7 (LED+) pin1 (LED-)
b.1 array / yellow-green
LCM
7
++15
(recommending)
RL=10 Ω
RL=0 Ω
ILED=100mA
ILED=80mA
+4.2V
+4.0V
Backlight
_ 16
1
BC0802B series
- 11 -
+5V
10. Quality Assurance
10.1 Inspection conditions
The LCD shall be inspected under 40W white fluorescent light.
45°
Definition of applicable Zones
B
LCD
A
BEZEL
PCB
A : D isp la y A re a
B : N o n - D isp la y A re a
BC0802B series
- 12 -
10.2 Inspection Parameters
NO.
Parameter
1
Black or White
spots
Criteria
Zone Acceptable Class
Number
Of
Dimension
A
B Defects
D<0.15
0.15≦D≦0.2
*
4
*
4
0.2≦D≦0.25
D≦0.3
2
0
2
1
D=(Long + Short)/2
2
Scratch,
Substances
Minor
Acceptable
Level
2.5
*: Disregard
Zone
Acceptable
Acceptable Class
Of
Level
Number
A
B Defects
X(mm) Y(mm)
*
0.04≧W
3.0≧L 0.06≧W
*
4
*
4
2.0≧L 0.08≧W
-
0.1<W
2
0
3
1
Minor
2.5
X: Length Y: Width *: Disregard
Total defects should not exceed 4/module
3
Air Bubbles
(between glass &
polarizer)
Zone Acceptable Class
Number
Of
Dimension
A
B Defects
D≦0.15
0.15<D≦0.25
*
2
*
*
Minor
0
1
0.25<D
*: Disregard
Total defects shall not excess 3/module.
BC0802B series
- 13 -
Acceptable
Level
2.5
(1) Pixel shape (with Dent)
0.152
(2) Pixel shape
(With Projection)
Should not be connected to
next pixel
Uniformity
4
0.152
(3) Pin hole
X
Y (X+Y)/2≦0.02mm
(Less than 0.1mm is no
counted)
(4)Deformation
X
(X+Y)/2 ≦0.3mm
Y
Total acceptable number : 1/pixel,5/cell
BC0802B series
- 14 -
11.Reliability
■Content of Reliability Test
Environmental Test
No. Test Item
1
2
3
4
5
6
7
8
9
10
11
Content of Test
Test Condition
Endurance test applying the high
60℃
High Temperature
storage temperature for a long
storage
200hrs
time.
Endurance test applying the high
-20℃
Low Temperature
storage temperature for a long
storage
200hrs
time.
Endurance test applying the
High Temperature electric stress (Voltage & Current) 50℃
Operation
and the thermal stress to the
200hrs
element for a long time.
Endurance test applying the
0℃
Low Temperature
electric stress under low
Operation
200hrs
temperature for a long time.
High
Endurance test applying the high
60℃,90%RH
Temperature/
temperature and high humidity
96hrs
Humidity Storage storage for a long time.
High
Endurance test applying the
Temperature/
electric stress (Voltage & Current) 40℃,90%RH
Humidity
and temperature / humidity stress 96hrs
Operation
to the element for a long time.
Endurance test applying the low
and high temperature cycle.
-20℃/60℃
-20℃
25℃
60℃
Temperature
Cycle
10 cycles
30min
5min
30min
1 cycle
Mechanical Test
10~22Hz→1.5mmp-p
Endurance test applying the
Vibration test
vibration during transportation
22~500Hz→1.5G
and using.
Total 0.5hrs
50G Half sign
Constructional and mechanical
wave 11 msedc
endurance test applying the shock
Shock test
3 times of each
during transportation.
direction
Endurance test applying the
Atmospheric
115mbar
atmospheric pressure during
pressure test
40hrs
transportation by air.
Others
VS=800V,RS=1.5kΩ
Static electricity Endurance test applying the
CS=100pF
test
electric stress to the terminal.
1 time
Applicable
Standard
——
——
——
——
——
——
——
——
——
——
——
***Supply voltage for logic system=5V. Supply voltage for LCD system =Operating voltage at 25℃
BC0802B series
- 15 -
12. Appendix (Drawing, KS0066 controller data)
12-1 Drawing
BC0802B series
- 16 -
12-2. KS0066 controller data
12-2.1 Function description
The LCD display Module is built in a LSI controller, the controller has two 8-bit registers, an instruction
register (IR) and a data register (DR).
The IR stores instruction codes, such as display clear and cursor shift, and address information for display
data RAM (DDRAM) and character generator (CGRAM). The IR can only be written from the MPU.
The DR temporarily stores data to be written or read from DDRAM or CGRAM. When address
information is written into the IR, then data is stored into the DR from DDRAM or CGRAM. By the
register selector (RS) signal, these two registers can be selected.
RS
R/W
0
0
IR write as an internal operation (display clear, etc.)
0
1
Read busy flag (DB7) and address counter (DB0 to DB7)
1
0
Write data to DDRAM or CGRAM (DR to DDRAM or CGRAM)
1
1
Busy Flag (BF)
Operation
Read data from DDRAM or CGRAM (DDRAM or CGRAM to DR)
When the busy flag is 1, the controller LSI is in the internal operation mode, and the next instruction will
not be accepted. When RS=0 and R/W=1, the busy flag is output to DB7. The next instruction must
be written after ensuring that the busy flag is 0.
Address Counter (AC)
The address counter (AC) assigns addresses to both DDRAM and CGRAM
Display Data RAM (DDRAM)
This DDRAM is used to store the display data represented in 8-bit character codes. Its extended
capacity is 80×8 bits or 80 characters. Below figure is the relationship between DDRAM addresses and
positions on the liquid crystal display.
High bits
Low bits
Example:DDRAM addresses 4E
AC
(hexadecimal)
BC0802B series
AC6 AC5 AC4 AC3 AC2 AC1 AC0
- 17 -
1
0
0
1
1
1
0
DDRAM Address
Display position DDRAM address
1
2
3
4
5
6
7
8
00
01
02
03
04
05
06
07
40
41
42
43
44
45
46
47
Example: 2-Line by 8-Character Display
Character Generator ROM (CGROM)
The CGROM generate 5×8 dot or 5×10 dot character patterns from 8-bit character codes. See Table 2.
Character Generator RAM (CGRAM)
In CGRAM, the user can rewrite character by program. For 5×8 dots, eight character patterns can be
written, and for 5×10 dots, four character patterns can be written.
Write into DDRAM the character code at the addresses shown as the left column of table 1. To show the
character patterns stored in CGRAM.
BC0802B series
- 18 -
Relationship between CGRAM Addresses, Character Codes (DDRAM) and Character Patterns (CGRAM
Data)
F o r 5 * 8 d o t c h a ra c te r p a tte rn s
C h a ra c te r C o d e s
( D D R A M d a ta )
7 6 5 4 3 2 1 0
H ig h
0 0 0 0
0 0 0 0
0 0 0 0
Low
* 0 0 0
* 0 0 1
* 1 1 1
C h a ra c te r P a tte rn s
( C G R A M d a ta )
C G R A M A d d re ss
5 4 3 2 1 0
Low
0 0
0 0
0 1
0 1
0 0 0 1 0
1 0
1 1
1 1
0 0
0 0
0 1
0 1
0 0 1 1 0
1 0
1 1
1 1
0 0
0 0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1 1 1 1
1
1
1
0
1
0
1
7 6 5 4 3 2 1 0
H ig h
0
0
1
1
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
H ig h
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
Low
0
0 0 0
0 0 0
0
0
0
0 0
0
0
0
0 0
0
0
0 0
0 0 0
0 0
0
0
C h a ra c te r
p a tte rn ( 1 )
0 0
0 0
C h a ra c te r
p a tte rn ( 2 )
0 0
0 0
0 0
0 0
0 0 0 0 0
C u rso r p a tte rn
C u rso r p a tte rn
* * *
F o r 5 * 1 0 d o t c h a ra c te r p a tte rn s
C h a ra c te r C o d e s
( D D R A M d a ta )
7 6 5 4 3 2 1 0
H ig h
0 0 0 0
Low
* 0 0 0
C G R A M A d d re ss
5 4 3 2 1 0
H ig h
7 6 5 4 3 2 1 0
Low
0
0
0
0
0
0 0 0
0
0
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
1
1
0
0
1
1
0
0
1
H ig h
0
1
0
1
0
1
0
1
0
1
0
1 1 1 1
: " H ig h "
BC0802B series
C h a ra c te r P a tte rn s
( C G R A M d a ta )
- 19 -
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Low
* 0 0 0 0 0
* 0 0 0 0 0
0
0
*
0 0
*
0 0 0
*
0 0 0
*
0
*
0 0 0 0
*
0 0 0 0
*
0 0 0 0
*
* 0 0 0 0 0
* * * * * * * *
C h a ra c te r
p a tte rn
C u rso r p a tte rn
12-2.2
C.G ROM table
Code J: English –Japanese Font
Upper
4 bit
Lower
4 bit
LLLL LLLH LLHL LLHH LHLL LHLH LHHL LHHH HLLL HLLH HLHL HLHH HHLL HHLH HHHL HHHH
LLLL
CG
RAM
(1)
LLLH
(2)
LLHL
(3)
LLHH
(4)
LHLL
(5)
LHLH
(6)
LHHL
(7)
LHHH
(8)
HLLL
(1)
HLLH
(2)
HLHL
(3)
HLHH
(4)
HHLL
(5)
HHLH
(6)
HHHL
(7)
HHHH
(8)
BC0802B series
- 20 -
12-2.3 Instruction table
Instruction Code
Instruction
Description
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Clear
Display
0
0
0
0
0
0
0
0
Return
Home
0
0
0
0
0
0
0
0
Entry Mode
Set
0
0
0
0
0
0
0
1
Display
ON/OFF
Control
0
0
0
0
0
0
1
D
Cursor or
Display
Shift
0
0
0
0
0
1
Function Set
0
0
0
0
1
DL
0
0
0
1
0
0
1
Set
CGRAM
Address
Set
DDRAM
Address
0
Write “00H” to DDRAM and set
1 DDRAM address to “00H” from
AC
1.53ms
1
Set DDRAM address to “00H”
from AC and return cursor to its
- original position if shifted. The
contents of DDRAM are not
changed.
1.53ms
Assign cursor moving direction
I/D SH and enable the shift of entire
display.
C
S/C R/L -
N
F
Execution
time
(fosc=270K
hz)
-
Set display (D), cursor (C ), and
B blinking of cursor (B) on/off
control bit.
Set cursor moving and display
shift control bit, and the direction,
-
without changing of DDRAM
data.
Set interface data length
(DL:8-bit/4-bit), numbers of
- display line (N:2-line/1-line)and,
display font type (F:5×11 dots/5×
8 dots)
39μs
39μs
39μs
39μs
AC5 AC4 AC3 AC2 AC1 AC0
Set CGRAM address in address
counter.
39μs
AC6 AC5 AC4 AC3 AC2 AC1 AC0
Set DDRAM address in address
counter.
39μs
Read Busy
Flag and
Address
0
1
Whether during internal operation
or not can be known by reading
BF AC6 AC5 AC4 AC3 AC2 AC1 AC0
BF. The contents of address
counter can also be read.
Write Data
to RAM
1
0
D7 D6 D5 D4 D3 D2 D1 D0
Write data into internal RAM
(DDRAM/CGRAM).
43μs
Read Data
from RAM
1
1
D7 D6 D5 D4 D3 D2 D1 D0
Read data from internal RAM
(DDRAM/CGRAM).
43μs
* ”-”:don’t care
BC0802B series
- 21 -
0μs
12-2.4 Timing characteristics
12-2.4.1 Write Operation
VIH1
RS
VIH1
VIL1
t
R/W
VIL1
t
AS
AH
VIL1
VIL1
PWEH
VIH1
E
tAH
tEf
VIH1
VIL1
VIL1
tEr
VIL1
tDSW
tH
VIH1
DB0 to DB7
VIL1
VIH1
Valid data
VIL1
tcycE
Ta=25℃, Vdd =5.0±0.5V
Item
Symbol
Min
Typ
Max
Unit
tcycE
500
-
-
ns
Enable pulse width (high level)
PWEH
230
-
-
ns
Enable rise/fall time
tEr,tEf
-
-
20
ns
Address set-up time (RS, R/W to E)
tAS
40
-
-
ns
Address hold time
tAH
10
-
-
ns
Data set-up time
tDSW
80
-
-
ns
tH
10
-
-
ns
Enable cycle time
Data hold time
BC0802B series
- 22 -
12-2.4.2 Read Operation
VIH1
RS
VIH1
VIL1
VIL1
tAS
tAH
VIH1
R/W
VIH1
PWEH
E
tAH
tEf
VIH1
VIH1
VIL1
VIL1
VIL1
tEr tDDR
VOH1
DB0 to DB7
VOL1*
tDHR
Valid data
VOH1
*VOL1
tcycE
NOTE: *VOL1 is assumed to be 0.8V at 2 MHZ operation.
Ta=25℃, Vdd =5.0±0.5V
Item
Symbol
Min
Typ
Max
Unit
tcycE
500
-
-
ns
Enable pulse width (high level)
PWEH
230
-
-
ns
Enable rise/fall time
tEr,tEf
-
-
20
ns
Address set-up time (RS, R/W to E)
tAS
40
-
-
ns
Address hold time
tAH
10
-
-
ns
Data delay time
tDDR
-
-
100
ns
Data hold time
tDHR
5
-
-
ns
Enable cycle time
BC0802B series
- 23 -
12-2.5 Initializing soft ware of LCM
12-2.5.1 4-bit interface
Power on
Wait for more than 15 ms after V CC rises to 4.5 V
BF can not be checked before this instruction.
RS R/W DB7 DB6 DB5 DB4
0
0
0
0
1
1
Function set ( Interface is 8 bits long. )
Wait for more than 4.1 ms
BF can not be checked before this instruction.
RS R/W DB7 DB6 DB5 DB4
0
0
0
0
1
1
Function set ( Interface is 8 bits long. )
Wait for more than 100 μs
BF can not be checked before this instruction.
RS R/W DB7 DB6 DB5 DB4
0
0
0
1
1
0
Function set ( Interface is 8 bits long. )
RS R/W DB7 DB6 DB5 DB4
0
0
1
0
0
0
0
0
0
0
1
0
0
0
N
F
*
*
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0 I/D S
BF can be checked after the following instructions.
When BF is not checked , the waiting time between
instructions is longer than execution instruction time.
Function set ( Set interface to be 4 bits long. )
Interface is 8 bits in length.
Function set ( Interface is 4 bits long. Specify
the number of display lines and character font. )
The number of display lines and character font
can not be changed after this point.
Display off
Display clear
Entry mode set
Initialization ends
4-Bit Ineterface
BC0802B series
- 24 -
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