MSC1201-XX OKI electronic componets, MSC1201-XX Datasheet

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MSC1201-XX

Manufacturer Part Number
MSC1201-XX
Description
60-Bit VFD Tube Driver
Manufacturer
OKI electronic componets
Datasheet
E2C0017-27-Y2
¡ Semiconductor
¡ Semiconductor
MSC1201-xx
60-Bit VFD Tube Driver with Digital Dimming and PWM Conversion Function
GENERAL DESCRIPTION
The MSC1201-xx is a 1/2 duty vacuum fluorescent display tube driver implemented in Bi-CMOS
technology. This LSI consists of 64-bit shift registers, 64 latches, PWM conversion circuit, a digital
dimming circuit, 30-segment driver and 2-grid driver. As the MSC1201-xx has both a digital
dimming circuit and a PWM conversion circuit which converts PWM signal for lamp dimming
control to PWM signal for VFD tube dimming control, the dimming control can be realized
without any external circuit.
The interface with a MCU can be done only with 3 wires (CS, DATA and CLOCK signals). Also,
DATA and CLOCK signal lines can be shared with other peripherals because of chip select
function by CS signal.
For the general purpose code, the code number is -01. (Product name: MSC1201-01GS-2K)
For a custom code, the code number will be ordered at any time.
FEATURES
• Single supply voltage : V
• Operating temperature range : Ta = –40 C to +85 C
• 30-segment driver outputs (I
• 2-grid pre-driver outputs (I
• Built-in digital dimming circuit (11-bit resolution)
• Built-in oscillation circuit (external R and C, f
• Built-in Power-On-Reset circuit.
• Lamp PWM signal Æ Buil-in PWM conversion circuit for vacuum fluorescent display tube.
• Built-in RC Oscillation (external R and C)
• Correspondence between shift register and output segment is settable optionally using built
• Package :
in mask programmable 30 ¥ 30 PLA.
44-pin plastic QFP (QFP44–P–910-0.80–2K)(Product name: MSC1201-xxGS-2K)
DD
OH
OH
= 8 V to 18 V (built-in 5 V logic regurator)
= –30 mA at V
= –6 mA at V
xx indicates the code number
OH
OSC
OH
= V
= V
= 2.0 MHz)
DD
DD
– 0.8 V)
– 0.8 V)
Previous version: Jul. 1996
This version: Nov. 1997
www.DataSheet4U.com
MSC1201-xx
1/20

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MSC1201-XX Summary of contents

Page 1

... VFD Tube Driver with Digital Dimming and PWM Conversion Function GENERAL DESCRIPTION The MSC1201- 1/2 duty vacuum fluorescent display tube driver implemented in Bi-CMOS technology. This LSI consists of 64-bit shift registers, 64 latches, PWM conversion circuit, a digital dimming circuit, 30-segment driver and 2-grid driver. As the MSC1201-xx has both a digital ...

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... PLA Matrix Multiplexer Latch 64-Bit Shift Register D48- Mode Selector POR Timing Generator R POR PWM Conversion Circuit S2 R POR Digital Dimming Circuit R POR MSC1201-xx www.DataSheet4U.com GRID1 GRID2 2-Grid Driver DATA OUT Test Mode INH Selector S3 S4 TEST1 2/20 ...

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... GND • Schematic Diagrams of Logic Portion Output Circuit (5V Reg.) GND • Schematic Diagrams of Logic Portion Input Circuit 1 (5V Reg.) V TEST1 INH GND • Schematic Diagrams of Driver Output Circuit (5V Reg.) OUTPUT GND GND MSC1201-xx www.DataSheet4U.com (5V Reg.) DD GND GND OUTPUT GND 3/20 ...

Page 4

... Semiconductor   PIN CONFIGURATION (TOP VIEW) 1 SEG22 2 SEG23 3 SEG24 4 SEG25 5 SEG26 6 SEG27 SEG28 7 8 SEG29 SEG30 9 GRID1 10 11 GRID2 44-Pin Plastic Package MSC1201-xx www.DataSheet4U.com SEG10 33 SEG9 32 31 SEG8 SEG7 30 SEG6 29 SEG5 28 SEG4 27 26 SEG3 25 SEG2 24 SEG1 23 DATAOUT 4/20 ...

Page 5

... When display duly is not controlled by this signal, leave this pin open. TEST1 13 I Test signal input pin. As this pin is used for shipping test of the LSI, leave open in the normal operation mode. V — Power Supply GND — Ground MSC1201-xx www.DataSheet4U.com Description 5/20 ...

Page 6

... All inputs except OSC0, VK IH1 V VK IH2 V OSC0 IH3 V All inputs except OSC0 IL1 V OSC0 IL2 f — 4.7kW, C=22pF OSC MHz FR OSC T — op MSC1201-xx www.DataSheet4U.com Rating Unit –0.3 to +20 V –0 –65 to +150 °C 0.4 W Min. Typ. Max. Unit 8 — 3.8 — 5.5 V 3.8 — ...

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... OL1 9 OL1-2 = 200 mA I OL1 9 OL1 OL1 9 OL2 = 200 mA I OL2 MHz, No load DD OSC MSC1201-xx www.DataSheet4U.com (Ta = –40 to +85˚ Min. Max. Unit 3.8 5 4 0.5 V – – – ...

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... PCS When the Unit mounted t POF When the Unit mounted PRZ F — FR Symbol Condition f — PWM v — — U MSC1201-xx www.DataSheet4U.com (Ta = –40 to +85° Min. Max. Unit 1.2 2.8 MHz 1.5 2.5 MHz — 250 kHz ms 1.3 — 1 — ms 200 — ...

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... Semiconductor TIMING DIAGRAM 3.8V 0. 3.8V 0.8V CLOCK 3.8V 0.8V DATA 3.8V CLOCK 0.8V 3.8V DATA 0.8V t CSW f CSS VALID VALID Fig. 1 Data Input Timing Fig. 2 Data Output Timing MSC1201-xx www.DataSheet4U.com t CSL t CSH 9/20 ...

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... TIMING DIAGRAM (Continued 3.8V 0.8V CS 3.8V CS 0.8V 80% SEG1-30 20% GRID1, 2 Fig. 4 SEG & GRID Driver Output Timing Input Threshold Voltage PWMIN t POF PCS Fig. 3 Power-On Timing t CSW t t ODS R PWM Frequency (f ) PWM A B Fig. 5 PWM Input Waveform MSC1201-xx www.DataSheet4U.com t PRZ t t ODS R Duty Cycle d = A/(A+B) U 10/20 ...

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... Bit input D48 D47 Mode Data MSC1201-xx www.DataSheet4U.com First Display Data SEGn GRID1 GRID2 11/20 ...

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... M0 0 Display Data Input 1 Digital Dimming Data Input 0 PWM Conversion Select & Display Data Input 1 PWM Conversion Select 0 Digital Dimming Select & Display Data Input 1 Digital Dimming Select MSC1201-xx www.DataSheet4U.com First LSB ...

Page 13

... GRID and SEG drivers output timings when VK = "H" GRID1 GRID2 SEG1-30 Fig. 6 GRID and SEG Output Timing (VK = "H") Note: One bit time = 2/f OSC Frame (4096-bit times 2032-bit times 6-bit times 2038-bit times 10-bit times = 1 ms typ. MSC1201-xx www.DataSheet4U.com 5V 16-bit times 13/20 ...

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... One bit time = 4/f 1 Frame (4096-bit times Max. 2032-bit times Max. 10-bit times 2038-bit times = "L" level typ. OSC 1 Frame (2048-bit times Max. 256-bit times Max. 259-bit times = 2 ms typ. OSC MSC1201-xx www.DataSheet4U.com 16-bit times 8-bit times 14/20 ...

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... MSC1201-01 VF PWM STEP No. DUTY CYCLE 12.50% 33 12.30% 34 12.11% 35 11.91% 36 11.72% 37 11.52% 38 11.33% 39 11.13% 40 10.94 10.74% 10.55 10.35% 10.16% 45 9.96% 46 9.77% 47 9.57% 48 9.38% 49 9.18% 50 8.98% 51 8.79% 52 8.59% 53 8.40% 54 8.20% 55 8.01% 56 7.81% 57 7.62% 58 7.42% 59 7.23% 60 7.03% 61 6.84 6.64% 64 6.45% 6.25% MSC1201-xx www.DataSheet4U.com LAMP PWM VF PWM DUTY CYCLE DUTY CYCLE 58.75% 6.05% 57.50% 5.86% 56.25% 5.66% 55.00% 5.47% 53.75% 5.27% 52.50% 5.08% 51.25% 4.88% 50.00% 4.69% 48.75% 4.49% 47.50% 4.30% 46.25% 4.10% 45.00% 3.91% 43.75% 3.71% 42.50% 3.52% 41.25% 3.32% 40.00% 3.13% 38.75% 2.93% 37.50% 2.73% 36.25% 2.54% 35.00% 2.34% 33.75% 2.15% 32.50% 1.95% 31.25% 1.76% 30.00% 1.56% 28.75% 1.37% 27.50% 1.17% 26.25% 0.98% 25.00% 0.78% 23.75% 0.59% 22.50% 0.39% 21.25% 0.20% 20.00% 0.10% 15/20 ...

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... SEG 12 SEG 13 SEG 14 SEG 15 SEG 16 SEG 17 SEG 18 SEG 19 SEG 20 SEG 21 SEG 22 SEG 23 SEG 24 SEG 25 SEG 26 SEG 27 SEG 28 SEG 29 SEG 30 MSC1201-01 MSC1201-xx www.DataSheet4U.com PIN 24 PIN 25 PIN 26 PIN 27 PIN 28 PIN 29 PIN 30 PIN 31 PIN 32 PIN 33 PIN 34 PIN 35 PIN 36 PIN 37 PIN 38 PIN 39 PIN 40 PIN 41 PIN 42 ...

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... SEG19 BIT 5,35 SEG20 BIT 6,36 SEG21 BIT 7,37 SEG22 BIT 8,38 SEG23 BIT 9,39 SEG24 BIT 10,40 SEG25 BIT 11,41 SEG26 BIT 12,42 SEG27 BIT 13,43 SEG28 BIT 14,44 SEG29 BIT 15,45 SEG30 MSC1201-xx www.DataSheet4U.com Output BIT 16,46 BIT 17,47 BIT 18,48 BIT 19,49 BIT 20,50 BIT 21,51 BIT 22,52 BIT 23,53 BIT 24,54 BIT 25,55 BIT 26,56 BIT 27,57 BIT 28,58 BIT 29,59 BIT 30,60 17/20 ...

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... Semiconductor APPLICATION CIRCUITS (1) Digital Dimming Mode Micro- controller 1/2 Duty VF Tube SEG1 SEG30 12 V VDD GND CS DATA MSC1201-xx CLOCK OSC1 OSC0 VK PWM IN MSC1201-xx www.DataSheet4U.com G1,G2 18/20 ...

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... Semiconductor (2) PWM Conversion Mode Daylight Mode "1" Dark Mode "0" Illumination Switch Illumination Lamp Dashboard Lamp Lamp PWM Signal 1/2 Duty VF Display Tube SEG1 GND CS Micro- DATA controller CLOCK OSC1 OSC0 VK PWMIN 5 V MSC1201-xx www.DataSheet4U.com SEG30 G1 G2 MSC1201-xx 19/20 ...

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... Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). MSC1201-xx www.DataSheet4U.com (Unit : mm) Package material ...

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