Semiconductor MSC1205 This version: Nov. 1997 MSC1205 Previous ve

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

Semiconductor MSC1205 This version: Nov. 1997 MSC1205 Previous ve

Datasheet Thumbnail

Top Searches for this datasheet

E2C0018-27-Y3
Semiconductor MSC1205
This version: Nov. 1997 MSC1205 Previous version: Jul. 1996
32-Bit Duplex Controller/Driver with Digital Dimming Function
GENERAL DESCRIPTION
MSC1205 Bi-CMOS display driver 1/2-duty vacuum fluorescent display tube. consists 64-bit shift register, latch circuits, digital diming circuit, drivers. MSC1205 provides interface with microcomputer only three signal lines: LOAD, DATA, CLOCK.
FEATURES
Power Supply Voltage: (built-in regulator logic) Built-in 1-terminal oscillation circuit (with external capacitor) Built-in digital dimming circuit 10-bit resolution Programmable duty range 0/2048 (0%) 1015.5/2048 (49.6%). directly drive display anodes. Built-in power-on reset circuit Package options: 42-pin plastic (DIP42-P-600-2.54) (Product name: MSC1205-RS) 44-pin plastic (QFP44-P-910-0.80-2K) (Product name: MSC1205GS-2K)
1/15
MSC1205
BLOCK DIAGRAM
SEG32 SEG31 GRID1 GRID2 VOLTAGE REGULATOR SEG2 SEG1
DRIVER bits LEVEL SHIFTER
BLANK DOWN COUNTER
bits
bits TIMING GENERATOR MULTIPLEXER
(fosc)
COMPARATOR
(bo)
bits LATCH (SEGLD) (DIMLD) LOAD (POR) LOAD TIMING CONTROL LATCH Q1-Q10 Q1-Q64 bits bits LATCH bits
DATA CLOCK
bits)
Q1-Q64
bits)
TEST
SHIFT REGISTER
2/15
MSC1205
INPUT OUTPUT CONFIGURATION
Schematic Diagrams Logic Portion Input Circuit
Reg.)
INPUT
Schematic Diagrams Logic Portion Input Schematic Diagrams Logic Portion Input Circuit Circuit
Reg.)
Reg.)
BLANK
TEST
Schematic Diagrams Driver Output Circuit
OUTPUT
3/15
MSC1205
CONFIGURATION (TOP VIEW)
DATA CLOCK LOAD SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 42-Pin Plastic
TEST BLANK GRID2 GRID1 SEG32 SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24 SEG23 SEG22 SEG21 SEG20 SEG19
4/15
MSC1205
CONFIGURATION (TOP VIEW)
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
No-connection 44-Pin Plastic
SEG23
CLOCK LOAD DATA SEG2 SEG1 TEST
BLANK
SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9
GRID2
GRID1 SEG32 SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24
SEG10 SEG11 SEG12 SEG13
5/15
MSC1205
DESCRIPTION
Symbol Type DATA CLOCK LOAD SEG1 -SEG32 GRID1 Description Serial data input pin. This receives display data, dimming data, enable mode bit. Shift clock input with Schmitt circuit. Serial data clocked this rising edge shift clock pulse. Load pulse input pin. load signal input when dimming data segment data transfer finished. Segment driver output pins. These pins provide large current driving (IOH -5.5mA 12V) small current driving (IOH -1.8mA 12V). Power supply voltage. This connected power supply 18V. Grid driver output pin. When this "L", display turned This connected external transistor. segment data first (S1) 32nd (S32) valid segment data bits. Grid driver output pin. When this "L", display turned This connected external transistor. segment data 33rd (S33) 64th (S64) valid segment data bits. Display blank input with pull-up resistor. When this "L", display turned (SEGn "L") Oscillation input pin. This connected external capacitor 82pF. standard oscillation frequency 512kHz. Test input with pull-down resistor. Normally this should left open should connected ground. Ground pin. This connected ground (VSS
GRID2
BLANK TEST
6/15
MSC1205
ABSOLUTE MAXIMUM RATINGS
Parameter Supply Voltage Input Voltage Storage Temperature Range Symbol TSTG Condition 25°C 25°C Rating -0.3 -0.3 +6.0 +150 Unit
RECOMMENDED OPERATING CONDITIONS
Parameter Power Supply Voltage Operating Temperature Range Symbol Condition Range Unit
ELECTRICAL CHARACTERISTICS
Characteristics
+85°C, 18V) Parameter High Level Input Voltage Level Input Voltage High Level Input Current Symbol IIH1 IIH3 Level Input Current IIL1 IIL2 IIL3 High Level Output Voltage (Small Current Driver) High Level Output Voltage (Large Current Driver) Level Output Voltage VOH1 VOH2 VOH3 VOH4 VOH5 VOH6 VOL1 VOL2 VOL3 High Level Output Voltage Current Consumption VOH7 Condition 9.5V, IOH1 -1.3mA 12V, IOH2 -1.8mA 15V, IOH3 -2.3mA 9.5V, IOH4 -4.1mA 12V, IOH5 -5.5mA 15V, IOH6 -7.0mA 9.5V, IOL1 9.5V, IOL2 500mA 9.5V, IOL3 9.5V, IOH7 -0.8mA fOSC 512kHz, load Min. -0.3 -500 VDD-0.5 VDD-0.5 VDD-0.5 VDD-0.5 VDD-0.5 VDD-0.5 VDD-0.5 Max. -100 Unit GRID1, GRID2 SEG1-SEG32 GRID1, GRID2 (2n-1) 1-16 Applicable DATA, LOAD CLOCK TEST DATA, LOAD CLOCK BLANK TEST (2n) 1-16
7/15
Semiconductor Characteristics
MSC1205
+85°C, 18V) Parameter Clock Frequency Clock Pulse Width Clock Rise/Fall Time DATA Setup Time DATA Hold Time Clock Load Time Load Clock Time Load Pulse Width SEGn Rise/Fall Time Grid Frequency Oscillation Frequency Large Current Small Current Symbol fC(1/tclock) tcr, fGRID fOSC Condition 20pF 20pF 82pF±5% Min. 307.2 Typ. 4/120 15/120 Max. 716.8 Unit
DATA CLOCK LOAD
SEGMENT DATA
DIMMING DATA
3.8V DATA CLOCK LOAD SEGn GRIDn 0.9VDD 0.1VDD 3.8V 0.8V 3.8V 0.8V 0.8V
8/15
MSC1205
FUNCTIONAL DESCRIPTION
DATA Input This device uses 10-bit dimming 64-bit segment data. order transfer this data, enable (M0) mode (M1) should initial state. data format shown below.
DATA CLOCK
Figure Data Transfer Timing This enable bit. Subsequent data disabled; preceding data held. beginning data transfer. following data clocked sequentially. This used select mode. Subsequent data handled segment data. Subsequent data handled dimming data. dimming data. data grid1 SEG1. data grid1 SEG2. data grid1 SEG32. data grid2 SEG1. data grid2 SEG32. Notes: sure enable before data transferred. Data following handled enable. data input with enable "1", first data coming next handled enable bit. number data bits applied greater (for example, bits applied segment data bits), data bits pushed same order that they applied, thus ignored. number data bits applied smaller (for example, bits applied segment data bits), prior data transfer shifted respectively.
9/15
Semiconductor CLOCK Input DATA shifted rising edge clock. LOAD Input
MSC1205
contents shift register shifted while LOAD input latched transition. LOAD signal reproduced driver latch pulse dimming data segment data. After 10-bit dimming data 64-bit segment data transferred, input LOAD signal prior next clock. Blank Function low-level voltage BLANK turns display (segment output "L"). When segment data transfer finished, display turned relationship between this data transfer display shown Figure Initial Setting When powered (i.e., when segment data never been transferred) display turned (the segment output "L"). When segment data transfer finished, display turned relationship between this data transfer display shown Figure
DATA LOAD Display Display DIMMING DATA SEGMENT DATA
SEGn
Figure Relationship Between Data Transfer Display
10/15
MSC1205
segment data transferred before dimming data transferred after powered display turned completion segment data transfer, with undefined dimming values. relationship between data transfer display shown Figure.
DATA SEGMENT DATA DIMMING DATA
LOAD Display
Dimming value undefined Display
SEGn
Figure Relationship Between Advance Transfer Segment Data Display Oscillator Connect external capacitor (C), shown Figure oscillating frequency fOSC depends external capacitor used. following equation true between fOSC grid frequency (fGRID): fGRID fOSC/2048
Terminal fOSC (82pF)
Figure Oscillation Equivalent Circuit
11/15
MSC1205
Dimming Function duty cycle grid output changed 1/2048 step with respect 10-bit dimming data. Table shows relationship between dimming data duty ratio. Table Dimming Data Duty Ratio
(MSB) dimming data (LSB) 0000 0000 1111 1111 1111 0000 0001 0111 1000 1110 Duty ratio 0/2048 1/2048 1015/2048 1015.5/2048 1015.5/2048
Note:
Setting address 3FFH invalid.
Duty ratios programmable within range 0/2048 (0%) 1015.5/2048 (49.6%).
12/15
MSC1205
APPLICATION CIRCUIT
SEG1-SEG32 SEG1 SEG2 DATA CLOCK LOAD GRID1 GRID2 SEG32
MSC1205
82pF
13/15
MSC1205
PACKAGE DIMENSIONS
(Unit
DIP42-P-600-2.54
Package material Lead frame material treatment Solder plate thickness Package weight
Epoxy resin alloy Solder plating more 6.20 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).
14/15
MSC1205
(Unit
QFP44-P-910-0.80-2K
Mirror finish
Package material Lead frame material treatment Solder plate thickness Package weight
Epoxy resin alloy Solder plating more 0.41 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).
15/15

Semiconductor MSC1205 This version: Nov. 1997 MSC1205 Previous ve

Top Searches for this datasheet

Other recent searches