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Vacuum Fluorescent Display (VFD) Driver Outputs Driver Absolute M


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STV7710/WAF
Vacuum Fluorescent Display (VFD) Driver
Outputs Driver Absolute Maximum Supply 3.3V/5V compatible logic -40/30mA source/sink output -50/50mA source/sink output diode data (40MHz) process Packaging: Form
DESCRIPTION
STV7710/WAF driver vacuum fluorescent display (VFD) designed proprietary high voltage technology. Using wide data bus, control high current high voltage outputs. STV7710/WAF supplied with separated power output supply. command inputs CMOS 3.3V logic levels compatible.
ORDERING INFORMATION
Ordering code
STV7710/WAF
Package
Bare
April 2004
1/19
STV7710/WAF
Table content
Chapter Chapter Chapter
BLOCK DIAGRAM DESCRIPTION MECHANICAL SPECIFICATION
Alignment marks specification Pads specification
Chapter
CIRCUIT DESCRIPTION
description Data configuration Description
Chapter Chapter Chapter Chapter Chapter Chapter
ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS TIMING REQUIREMENTS TIMING CHARACTERISTICS INPUT/OUPUT SCHEMATICS THERMAL CHARACTERISTICS
2/19
STV7710/WAF
BLOCK DIAGRAM
BLOCK DIAGRAM
Figure STV7710/WAF block diagram
TEST
DATA_A 96bit Shift register
DATA_B
Latch
VSSLOG
VSSSUB
STV7710/WAF
VSSP
OUT1
OUT96
3/19
DESCRIPTION
STV7710/WAF
DESCRIPTION
Figure STV7710/WAF pinout
2.07
OUT54 OUT43
OUT55 OUT56 OUT57
OUT42 OUT41 OUT40
5.89
OUT95 OUT96 VSSP VSSP
OUT2 OUT1 VSSP VSSP
VSSLOG
4/19
VSSLOG
VSSSUB
DATA_B DATA_A
TEST
STV7710/WAF
MECHANICAL SPECIFICATION
MECHANICAL SPECIFICATION
Alignment marks specification
Figure Alignment marks
min. 0.35 0.25 Patterning restricted area
min. 0.35
0.25
0.15
Pads specification
reference centre (x=0, y=0)
Table side from left right Name
OUT54 OUT53 OUT52 OUT51 OUT50 OUT49 OUT48 OUT47 OUT46 OUT45 OUT44 OUT43
Centre:
-773.67 -670.48 -567.29 -464.1 -360.91 -257.72 -154.53 -51.34 51.85 155.04 258.23 361.42
Centre:
2796.11 2796.11 2796.11 2796.11 2796.11 2796.11 2796.11 2796.11 2796.11 2796.11 2796.11 2796.11
Size:
76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00
0.15
SIze:
92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00
5/19
MECHANICAL SPECIFICATION
Table Bottom side from right left Name
VSSLOG DATA_A DATA_B VSSSUB TEST VSSLOG
STV7710/WAF
Centre:
771.63 669.54 566.35 463.16 359.97 257.63 154.44 51.25 -119.85 -567.88 -669.54 -771.63
Centre:
-2802.23 -2802.23 -2802.23 -2802.23 -2802.23 -2802.23 -2802.23 -2802.23 -2802.23 -2802.23 -2802.23 -2802.23
Size:
76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00
SIze:
92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00
Table RIGHT SIDE from bottom Name
OUT42 OUT41 OUT40 OUT39 OUT38 OUT37 OUT36 OUT35 OUT34 OUT33 OUT32 OUT31 OUT30 OUT29 OUT28 OUT27 OUT26 OUT25 OUT24 OUT23 OUT22 OUT21
Centre:
887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61
Centre:
2050.11 1946.92 1843.73 1740.54 1638.88 1535.69 1432.50 1329.31 1226.12 1122.93 1019.74 916.55 813.36 710.17 606.98 503.79 400.60 297.41 194.22 91.03 -12.15 -115.34
Size:
92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00
SIze:
76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00
6/19
STV7710/WAF
MECHANICAL SPECIFICATION
Table RIGHT SIDE from bottom Name
OUT20 OUT19 OUT18 OUT17 OUT16 OUT15 OUT14 OUT13 OUT12 OUT11 OUT10 OUT9 OUT8 OUT7 OUT6 OUT5 OUT4 OUT3 OUT2 OUT1 VSSP VSSP
Centre:
887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61 887.61
Centre:
-218.53 -321.72 -424.91 -528.10 -631.29 -734.48 -837.67 -940.86 -1044.05 -1147.24 -1250.43 -1353.62 -1456.81 -1560.00 -1663.19 -1766.38 -1869.57 -1972.76 -2075.95 -2179.14 -2282.16 -2385.35 -2488.46 -2591.65
Size:
92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00
SIze:
76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00
Table LEFT SIDE from bottom Name
VSSP VSSP OUT96 OUT95 OUT94 OUT93 OUT92 OUT91 OUT90 OUT89
Centre:
-887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61
Centre:
-2591.65 -2488.46 -2385.35 -2282.16 -2179.14 -2075.95 -1972.76 -1869.57 -1766.38 -1663.19 -1560.00 -1456.81
Size:
92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00
SIze:
76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00
7/19
MECHANICAL SPECIFICATION
Table LEFT SIDE from bottom Name
OUT88 OUT87 OUT86 OUT85 OUT84 OUT83 OUT82 OUT81 OUT80 OUT79 OUT78 OUT77 OUT76 OUT75 OUT74 OUT73 OUT72 OUT71 OUT70 OUT69 OUT68 OUT67 OUT66 OUT65 OUT64 OUT63 OUT62 OUT61 OUT60 OUT59 OUT58 OUT57 OUT56 OUT55
STV7710/WAF
Centre:
-887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61 -887.61
Centre:
-1353.62 -1250.43 -1147.24 -1044.05 -940.86 -837.67 -734.48 -631.29 -528.10 -424.91 -321.72 -218.53 -115.34 -12.15 91.03 194.22 297.41 400.60 503.79 606.98 710.17 813.36 916.55 1019.74 1122.93 1226.12 1329.31 1432.50 1535.69 1638.88 1740.54 1843.73 1946.92 2050.11
Size:
92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00 92.00
SIze:
76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00 76.00
8/19
STV7710/WAF
CIRCUIT DESCRIPTION
CIRCUIT DESCRIPTION
description
Table STV7710/WAF description Symbol
OUT(01-96) VSSP VSSLOG VSSSUB DATA_A DATA_B TEST
Function
Output Ground Supply Input Input Input Supply Ground Ground Input Input Input/output Input/output Input Power output
Description
Ground power outputs High voltage supply power outputs Blanking input Power output control input Selection shift direction logic supply Logic ground Substrate ground Clock data shift register Latch data outputs Shift register input Shift register output Test input
Data configuration
Table STV7710/WAF data configuration
Input
DATA_A Output DATA_B Output
Data shift
Output
DATA_B Forward shift DATA_A Reverse shift
This table describes position first data sampled first rising edge signal.
9/19
CIRCUIT DESCRIPTION
STV7710/WAF
Description
STV7710/WAF includes logic power circuits necessary drive electrodes vacuum fluorescent display (VFD). Binary values each pixel displayed line loaded into shift register DATA_A/B data bus. Data shifted each high transition clock. After shifts, data available output shift register. This output used cascade several drive higher resolution displays. forward /reverse (F/R) input used select direction shift register. Data input/output status according selected direction (refer Table maximum frequency shift clock 40MHz. When signal high, data transferred from shift register latch power output stages. output data kept memorized held latch stage when latch input level. Vsssub Vsslog must connected close possible logical reference ground application. Also, make sure that TEST input connected ground (Figure STV7710/WAF supplied with volt power supply. logic inputs driven either CMOS logic, 3.3V CMOS logic.
Table Shift register truth table Input
Data-in Data-out Shift register function
DATA_A
Data-in Data-out
DATA_B
Data-out Data-in Forward shift Steady Reverse shift Steady
Table Power output truth table TEST
Driver Output
"Low" "High"
Comments
Output level Output high level Data latched Data transfered Data transfered
10/19
STV7710/WAF
ABSOLUTE MAXIMUM RATINGS
ABSOLUTE MAXIMUM RATINGS
Symbol
Ipout Tjmax Tstg Vout
Parameter
Logic supply range Driver supply range Logic input voltage range Driver output current (Note 1)(Note Maximum junction temperature Storage temperature range Output power voltage range
Value
-0.3, -0.3, -0.3, Vcc+0.3 -30, +150 -0.3,
Unit
Note: Through power output. Through power output power outputs (see Figure 5:Test configuration page16) with Junction temperature lower than equal Tjmax
Susceptibility Human Body Model: 100pF; 1.5K pins withstand ±2Kv except Data_A Data_B: 1.2Kv
11/19
ELECTRICAL CHARACTERISTICS
STV7710/WAF
ELECTRICAL CHARACTERISTICS
(Vcc 70V, Vssp Tamb 25°C, FCLK MHz, unless otherwise specified)
Symbol
SUPPLY Iccl Logic supply voltage Logic supply current (Note Logic Dynamic Supply Current (FCLK=20Mhz) (Note Logic Supply Current (Vih=2.0V) Power output supply voltage Power output supply current (steady outputs) 4.50
Parameter
Unit
Ipph OUTPUT
OUT1-OUT96 (Figure Vpouth Power output high level (voltage drop versus Vpp) @Ipouth 20mA Vpoutl Vdouth Vdoutl Power output level Ipoutl 20mA Output diode voltage drop Idouth 30mA (Note Output diode voltage drop Idoutl 30mA (Note
DATA DATA (Figure INPUT CLK, F/R, STB, POC, BLK, DATA_A, DATA (Figure Input high level Input level High level input current (Vih >=2.0V) level input current (Vil Input capacitance (Note Logic output high level @Ioh=-1mA Logic output level @Iol
Note: Logic input levels compatible with CMOS logic data inputs commuted 10MHz Figure 5:Test configuration page16 This parameter measured during ST's internal qualification which includes temperature characterization standard corner batches process. This parameter tested part.
12/19
STV7710/WAF
TIMING REQUIREMENTS
TIMING REQUIREMENTS
(Vcc 4.5v 5.5v, Tamb +85°C, input signals leading edge trailing edge (tr, 5ns)
Symbol
tCLK tWHCLK tWLCLK tSDAT tHDAT tHSTB tSTB tSSTB Data clock period Duration pulse high level Duration pulse level Set-up time data input before high clock transition Hold-time data input after high clock transition Hold-time after high clock transition
Parameter
Unit
level pulse duration set-up time before rise
13/19
TIMING CHARACTERISTICS
STV7710/WAF
TIMING CHARACTERISTICS
(Vcc 70V, Vssp Vsssub Vsslog Tamb 25°C, FCLK 40MHz) (Vilmax 0.2Vcc, Vihmin 0.8Vcc)
Symbol
tPHL1 tPLH1 tPHL2 tPLH2
Parameter
Delay power output change after transition high high Delay power output change after transition high high
Unit
tPHL3 tPLH3
Delay power output change after BLK, transition high high
tPHL4 tPLH4
Power output rise time (Note Power output fall time (Note Width Falling Edge Smooth Shape (not tested) (Note Logic data output rise time 10pF) Logic data output fall time 10pF) Delay logic data output change after transition high high
Note: output among loading capacitor 50pF, other outputs level Figure
14/19
STV7710/WAF
TIMING CHARACTERISTICS
Figure characteristics waveform
tCLK tWHCLK tWLCLK tSDAT tHDAT DATA_A tPHL4
DATA_B
tSTB
tPLH4
tHSTB
tSSTB
tPHL2 tPLH2
tPHL1 tPLH1
OUTn
(POC="L") tPLH3 OUTn tPHL3
15/19
TIMING CHARACTERISTICS
Figure Test configuration
STV7710/WAF
VPP=VSSP
VPP=VSSP
VDOUTH
IDOUTH
VDOUTL VSSP VSSP
IDOUTL
Output sinking current positive value, sourcing current negative value
Figure Zoom OUTn showing
OUTn
16/19
STV7710/WAF
INPUT/OUPUT SCHEMATICS
INPUT/OUPUT SCHEMATICS
Figure CLK, STB, F/R, POC, inputs
Figure Test
CLK, F/R, POC, BLK,
TEST
GNDSUB GNDSUB GNDLOG must grounded application
GNDLOG
Figure DATA_A, DATA_B
Figure Power output
DATA_A DATA_B
OUT1
GNDLOG GNDSUB
17/19
THERMAL CHARACTERISTICS
STV7710/WAF
THERMAL CHARACTERISTICS
STV7710/WAF exposed high temperatures during manufacturing module (display sealing). STV7710/WAF qualified maximum storage temperature 475°C during minutes following thermal profile described Figure
Figure Thermal profile applied internal qualification
Temperature Celsius)
Time min.) Thermal profile
18/19
STV7710/WAF
Information furnished believed accurate reliable. However, STMicroelectronics assumes responsibility consequences such information infringement patents other rights third parties which result from use. license granted implication otherwise under patent patent rights STMicroelectronics. Specifications mentioned this publication subject change without notice. This publication supersedes replaces information previously supplied. STMicroelectronics products authorized critical components life support devices systems without express written approval STMicroelectronics. logo registered trademark STMicroelectronics other names property their respective owners 2004 STMicroelectronics rights reserved STMicroelectronics GROUP COMPANIES Australia Belgium Brazil Canada China Czech Republic Finland France Germany Hong Kong India Israel Italy Japan Malaysia Malta Morocco Singapore Spain Sweden Switzerland United Kingdom United States www.st.com
19/19

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