Semiconductor MSC7128-xx Semiconductor 7-Dot Character 16-Digit D

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Semiconductor MSC7128-xx Semiconductor 7-Dot Character 16-Digit D

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E2C0029-27-Y4
Semiconductor MSC7128-xx
Semiconductor 7-Dot Character 16-Digit Display Controller/Driver
This version:MSC7128-xx Nov. 1997 Previous version: Jul. 1996
GENERAL DESCRIPTION
MSC7128-xx general purpose display controller vacuum fluorescent display tube. MSC7128-xx drives displays with anodes (dots) grids (characters) plus cursor. controller accepts command display data input words clocked serial input line. Commands control on/off duty cycle, starting character position, number characters display display modes (PLA mode Lamp Test mode). internal PLA-type character generator provides character decoding pattern generation full characters. 128-bit (ROM) code programmable.
FEATURES
Logic supply voltage (VDD) :+5V driver supply voltage (VEE) :-55V Driver output current grid driver :-30mA anode driver :-2mA cursor driver :-10mA Direct drive capability vacuum fluorescent display pull-down resistor required) Built-in oscillation circuit Built-in power-on-reset circuit with external Serial host interface (data clock, chip select) Serial data input 8-bit control display data words Command functions On/off duty cycle 0/16 15/16 Character display position Number display digits Display modes mode, Lamp Test mode Built-in 128-bit PLA-type character generator Character font Number characters :128 Programmable code Package options: 64-pin plastic SDIP (SDIP64-P-750-1.78) (Product name MSM7128-xxSS) 64-pin plastic (QFP64-P-1420-1.00-BK) (Product name MSM7128-xxGS-BK) indicates code number.
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BLOCK DIAGRAM
Semiconductor
8-BIT SHIFT REGISTER DISPLAY DATA BUFFER
LATCH
CHARACTER GENERATOR BITS
LATCH
DRIVER SEG1 SEG2 SEG34 SEG35 SEG36
8BITS b0-7 WORDS b4-6
COMMAND DECODER
RAMPC RESET ADDRESS SELECTOR
RESET fSEG
RESET
RESET
TIMING GENERATOR
DECODER LATCH
DRIVER COM1 COM2
OSCI OSCO
CONTROL
b0-3 W.A.C. LOAD W.A.C. COUNT
TEST STEP TEST COUNT
RESET
RESET
WRITE ADDRESS COUNTER
READ ADDRESS COUNTER RESET fDIG RESET
W.A.C. COUNT b0-3 RESET b0-3 b0-3
LOAD
COM14 COM15 COM16
LOAD
DUTYCYCLE REGISTER
DIGIT COUNT REGISTER RESET
ADDRESS COMP
DUTYCYCLE COUNTER
DUTY BLANK GENERATOR RESET
BLANK DUTY BLANK
MSC7128-xx
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Semiconductor
MSC7128-xx
INPUT OUTPUT CONFIGURATION
INPUT
OSCI RESET TEST COUNT TEST STEP
OUTPUT
OSCO
SEG1
SEG36 COM1-16
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Semiconductor
MSC7128-xx
CONFIGURATION (TOP VIEW)
OSC0 OSCI TEST COUNT TEST STEP COM10 COM11 COM12 COM13 COM14 COM15 COM16
RESET
64-Pin Plastic Shrink
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Semiconductor
CONFIGURATION (TOP VIEW)
64-Pin Plastic
TEST COUNT TEST STEP
MSC7128-xx
RESET
VDD1
VDD2
5/27
Semiconductor
MSC7128-xx
DESCRIPTION
Symbol VDD1 VDD2 OSCI OSCO RESET COM1 tube grid electrode COM16 SEG1 SEG35 SEG36 TEST STEP TEST COUNT Type Microcomputer Microcomputer Microcomputer Serial data input from (positive logic) Shift clock input. Data shifted leading edge Chip select input. When High, serial data transfer inhibited. oscillation, external pin. fOSC 250kHz 100pF 47kW. Reset input (pull-up resistor built in). When Low, internal logic reset, outputs SEG1 SEG36 COM1 COM16 Low. tube grid electrode driving outputs. This connected directly tube. pull-down resistor required. -30mA Power source VDD1 VSS: Internal logic supply voltage VDD2 VEE: tube driving circuit supply voltage Connected Description
tube -dot anode electrode driving outputs. tube anode electrode This connected directly tube. pull-down resistor required. -2mA tube cursor anode electrode driving output. tube anode electrode This connected directly tube. pull-down resistor required. -10mA Test mode setting input (normally open) Test clock input (normally open)
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Semiconductor
MSC7128-xx
ABSOLUTE MAXIMUM RATINGS
Parameter Power Supply Voltage Power Supply Voltage Input Voltage Power Dissipation Storage Temperature Output Current Symbol VDD-VSS VDD-VEE VIN-VSS TSTG Condition 25°C COM1 COM16 SEG1 SEG35 SEG36 Rating -0.3 +6.5 -0.3 +150 Unit
RECOMMENDED OPERATING CONDITIONS
Parameter Power Supply Voltage Power Supply Voltage High Level Input Voltage Level Input Voltage Frequency Frequency Operating Temperature Symbol VDD-VSS VDD-VEE VIH-VSS VIL-VSS fOSC Condition 100pF, 47kW Min. 0.7VDD Typ. Max. 0.3VDD Unit
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Semiconductor
MSC7128-xx
ELECTRICAL CHARACTERISTICS
Characteristics
(VDD-Vss 5V±10%, VDD-VEE 60V, +75°C) Parameter High Level Input Voltage Level Input Voltage Symbol IIH1 High Level Input Current IIH2 RESET TEST STEP TEST COUNT TEST STEP TEST COUNT RESET OSCO COM1~16 SEG1~35 SEG36 OSCO COM1~16 SEG1~35 SEG36 Condition 5.5V 5.5V 5.5V 0.5V 5.5V 0.5V -500mA -30mA -2mA -10mA 500mA 100mA 100mA 100mA Min. 0.7VDD 0.25 Max. 0.3VDD Unit
IIL1 Level Input Current IIL2 VOH1 High Level Output Voltage VOH2 VOH3 VOH4 VOL1 Level Output Voltage VOL2 VOL3 VOL4 ISS1 Current Consumption ISS2 IEE1 IEE2
VDD-0.6 VDD-4 VDD-3 VDD-4
-100 VSS+0.6 VEE+3 VEE+3 VEE+3
SEGs 16-digit display, duty cycle 15/16, load SEGs Low, COMs High SEGs 16-digit display, duty cycle 15/16, load SEGs Low, COMs High
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Semiconductor
MSC7128-xx
Characteristics
(VDD-VSS 5V±10%, +75°C) Parameter Cycle Time Pulse Width Data Set-up Time Data Hold Time Set-up Time Hold Time Frequency Symbol tWCP tCSS tCSH fOSC Condition 47kW, 100pF Min. 32T* Max. Unit
1/fOSC
TIMING DIAGRAM
Data Timing
tWCP tCSS tCSH
VALID
VALID
VALID
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Semiconductor Data LSB/MSB Timing
DATA WORD NEXT DATA WORD
MSC7128-xx
tDOFF DATA INPUT TIME tDOFF 32Tmin (T=1/fOSC)
Digit Timing (16-Digit Display)
Frame count Display timing Blank timing 1/fOSC
When fOSC 245kHz 4.096ms 240ms 16ms
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Semiconductor Reset Timing
MSC7128-xx
tRESET tRESET
RESET
DATA VALID
OPTION When capacitor connected between RESET VSS, RESET TIME tRESET 250ms typ. RESET TIME tRESET 50ms min. (External capacitor 1mF) OPTION When RESET signal externally input, RESET TIME tRESET 50ms min. RESET TIME tRESET 50ms min.
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Semiconductor
MSC7128-xx
FUNCTIONAL DESCRIPTION
Data Transfer Method Command Write Method display control command data written 8-bit serial transfer method. figure below shows write timing. When Low, data transferred. Data bits length input sequentially starting with LSB. (LSB first) Data shifted rising edge shift clock pulse which input shown figure below. When 8-bit data entered, inner LOAD signal automatically generated, data written into registers RAM. Therefore, there need input external LOAD signal. changed from High, serial transfer inhibited, data, which entered after changed from High Low, recognized units bits. first bits become first byte, second bits become second byte next bits become either first byte second byte depending selected command.
tDOFF*1 First Byte Second Byte tCSH*2
tDOFF Refer Data LSB/MSB Timing. tCSH Refer Characteristics Data Timing. Command Type
First Byte Command
Second Byte
Address Character Code Display Duty Number Display Digits Lamp Test
When character codes continuously transferred, addresses automatically incremented (internally). Accordingly, neither Address command first byte Character Code command required second following character codes. Don't care
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Semiconductor Command Description Address command
MSC7128-xx
When code display character set, this command used specify display location (digit number) character. relation between digit number common outputs COM1 COM16 follows:
Input COM1 COM2 COM16
Command format
byte byte
Digit number
Character code command This command used specify character displayed digit place specified Address command. Bits second byte used specify character code, used specify "Yes" "No" cursor display. Command format
byte
byte
7-bit character code Select codes Without cursor (SEG36 OFF)
With cursorout (SEG36
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Semiconductor
MSC7128-xx
automatic address increment function built write multidigit display character codes, issue Address command. transfer second later digit display character codes, first byte (operation code) Character Code command required. Input second byte. When this command executed, 8-bit data second byte later bytes, which provided before turned High, treated display character data. Transfer examples Address command Character command
DATA
Address command
Character command
Example display COM3 following changed.
Write character code displayed COM4 Write character code displayed COM5 Write first character code Specify digit number (COM3)
X=15 (COM16) followed (COM1)
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Semiconductor Number Display Digits Command
MSC7128-xx
This command used digit count register number display digits. number digits ranges from Command format
byte byte
Number digits
relation between value under display control follows:
Displayed COM1 COM16 COM1 COM1 COM2 COM1 COM3 COM1 COM4 COM1 COM5 COM1 COM6 COM1 COM7
Displayed COM1 COM8 COM1 COM9 COM1 COM10 COM1 COM11 COM1 COM12 COM1 COM13 COM1 COM14 COM1 COM15
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Semiconductor Display Duty Command
MSC7128-xx
Assuming original oscillation cycle time allocated 1-digit display 64T. actual display time specified increments Assuming number display digits parameter provided Display Duty command resultant display duty cycle ratio follows: (DC) (DC)
Command format
byte byte
value
Lamp Test Command This command used All-Segment Display mode. this occurs, segments each digit displayed into state. number display digits display duty cycle depend contents digit count register duty register. contents internal affected this command. When command released, original display appears once again. Command format
byte Normal mode Lamp test mode byte
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Semiconductor Power Reset Operation Operations when RESET follows: segment driver outputs Low. grid driver outputs Low. number display digits display duty cycle
MSC7128-xx
Test Step Test Count These pins used inspection before shipment, should used user. When this mounted, leave them open connect VSS. they connected other pins, malfunction caused.
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Semiconductor Relation Between Segment Output Tube Dots
MSC7128-xx
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
SEG34
SEG35
Cursor SEG36
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Semiconductor Data Setup Flow
Power Address
MSC7128-xx
Character Display digit Display duty
address Number display digits Display duty
character
first byte second byte
Note: avoid display malfunction external noise, re-set occasionally number display digits display duty set.
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Semiconductor
MSC7128-xx
MSC7128-01 CODE
ADDRESS 0(00H) ADDRESS 1(01H) ADDRESS 2(02H) ADDRESS 3(03H) ADDRESS 4(04H)
ADDRESS 5(05H)
ADDRESS 6(06H)
ADDRESS 7(07H)
ADDRESS 8(08H)
ADDRESS 9(09H)
ADDRESS 10(0AH)
ADDRESS 11(0BH)
ADDRESS 12(0CH)
ADDRESS 13(0DH)
ADDRESS 14(0EH)
ADDRESS 15(0FH)
ADDRESS 16(10H)
ADDRESS 17(11H)
ADDRESS 18(12H)
ADDRESS 19(13H)
ADDRESS 20(14H)
ADDRESS 21(15H)
ADDRESS 22(16H)
ADDRESS 23(17H)
ADDRESS 24(18H)
ADDRESS 25(19H)
ADDRESS 26(1AH)
ADDRESS 27(1BH)
ADDRESS 28(1CH)
ADDRESS 29(1DH)
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Semiconductor
MSC7128-xx
ADDRESS 30(1EH)
ADDRESS 31(EFH)
ADDRESS 32(20H)
ADDRESS 33(21H)
ADDRESS 34(22H)
ADDRESS 35(23H)
ADDRESS 36(24H)
ADDRESS 37(25H)
ADDRESS 38(26H)
ADDRESS 39(27H)
ADDRESS 40(28H)
ADDRESS 41(29H)
ADDRESS 42(2AH)
ADDRESS 43(2BH)
ADDRESS 44(2CH)
ADDRESS 45(2DH)
ADDRESS 46(2EH)
ADDRESS 47(2FH)
ADDRESS 48(30H)
ADDRESS 49(31H)
ADDRESS 50(32H)
ADDRESS 51(33H)
ADDRESS 52(34H)
ADDRESS 53(35H)
ADDRESS 54(36H)
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Semiconductor
ADDRESS 55(37H) ADDRESS 56(38H) ADDRESS 57(39H) ADDRESS 58(3AH)
MSC7128-xx
ADDRESS 59(3BH)
ADDRESS 60(3CH)
ADDRESS 61(3DH)
ADDRESS 62(3EH)
ADDRESS 63(3FH)
ADDRESS 64(40H)
ADDRESS 65(41H)
ADDRESS 66(42H)
ADDRESS 67(43H)
ADDRESS 68(44H)
ADDRESS 69(45H)
ADDRESS 70(46H)
ADDRESS 71(47H)
ADDRESS 72(48H)
ADDRESS 73(49H)
ADDRESS 74(4AH)
ADDRESS 75(4BH)
ADDRESS 76(4CH)
ADDRESS 77(4DH)
ADDRESS 78(4EH)
ADDRESS 79(4FH)
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Semiconductor
ADDRESS 80(50H) ADDRESS 81(51H) ADDRESS 82(52H) ADDRESS 83(53H)
MSC7128-xx
ADDRESS 84(54H)
ADDRESS 85(55H)
ADDRESS 86(56H)
ADDRESS 87(57H)
ADDRESS 88(58H)
ADDRESS 89(59H)
ADDRESS 90(5AH)
ADDRESS 91(5BH)
ADDRESS 92(5CH)
ADDRESS 93(5DH)
ADDRESS 94(5EH)
ADDRESS 95(5FH)
ADDRESS 96(60H)
ADDRESS 97(61H)
ADDRESS 98(62H)
ADDRESS 99(63H)
ADDRESS 100(64H)
ADDRESS 101(65H)
ADDRESS 102(66H)
ADDRESS 103(67H)
ADDRESS 104(68H)
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Semiconductor
ADDRESS 105(69H) ADDRESS 106(6AH) ADDRESS 107(6BH) ADDRESS 108(6CH)
MSC7128-xx
ADDRESS 109(6DH)
ADDRESS 110(6EH)
ADDRESS 111(6FH)
ADDRESS 112(70H)
ADDRESS 113(71H)
ADDRESS 114(72H)
ADDRESS 115(73H)
ADDRESS 116(74H)
ADDRESS 117(75H)
ADDRESS 118(76H)
ADDRESS 119(77H)
ADDRESS 120(78H)
ADDRESS 121(79H)
ADDRESS 122(7AH)
ADDRESS 123(7BH)
ADDRESS 124(7CH)
ADDRESS 125(7DH)
ADDRESS 126(7EH)
ADDRESS 127(7FH)
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Semiconductor
MSC7128-xx
APPLICATION CIRCUIT
Heater Transformer
ANODE (SEGMENT)
SEG1
Display
GRID (DIGIT)
COM1
Output Port
MSC7128-xx
TEST TEST STEP COUNT RESET OSCI OSCO
+60V
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Semiconductor
MSC7128-xx
PACKAGE DIMENSIONS
(Unit
SDIP64-P-750-1.78
Package material Lead frame material treatment Solder plate thickness Package weight
Epoxy resin alloy Solder plating more 8.70 TYP.
Notes Mounting Surface Mount Type Package SOP, QFP, TSOP, SOJ, (PLCC), surface mount type packages, which very susceptible heat reflow mounting humidity absorbed storage. Therefore, before perform reflow mounting, contact Oki's responsible sales person product name, package name, number, package code desired mounting conditions (reflow method, temperature times).
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Semiconductor
MSC7128-xx
(Unit
QFP64-P-1420-1.00-BK
Mirror finish
Package material Lead frame material treatment Solder plate thickness Package weight
Epoxy resin alloy Solder plating more 1.25 TYP.
Notes Mounting Surface Mount Type Package SOP, QFP, TSOP, SOJ, (PLCC), surface mount type packages, which very susceptible heat reflow mounting humidity absorbed storage. Therefore, before perform reflow mounting, contact Oki's responsible sales person product name, package name, number, package code desired mounting conditions (reflow method, temperature times).
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Semiconductor MSC7128-xx Semiconductor 7-Dot Character 16-Digit D

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