Semiconductor MSC1937-01 Semiconductor 14/16-Segment 16-Digit Dis
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E2C0026-27-Y3
Semiconductor MSC1937-01
Semiconductor 14/16-Segment 16-Digit Display Controller/Driver
This version: Nov. 1997 MSC1937-01 Previous version: Jul. 1996
GENERAL DESCRIPTION
MSC1937-01 Bi-CMOS alphanumeric display controller designed interface with either vacuum fluorescent display. MSC1937-01 drive displays with digits with either segments plus decimal point comma. MSC1937-01 provides interface with microcomputer only signal lines: DATA SCLK.
FEATURES
display digits with either segments plus comma/point. number display digits programmable within brightness adjustment programmable 1/32 step. display contents changed digit. Built-in types ASCII characters (capital letters only) displayed). Executable 1-byte instruction format Drive capability Output current (Digit) (Segment) Plastic (Segment) Plastic Withstand voltage also used LED. compatible with 10937 manufactured Rockwell. Supply voltage Package options: 40-pin plastic (DIP40-P-600-2.54) (Product name: MSC1937-01RS) 44-pin plastic (QFP44-P-910-0.80-K) (Product name: MSC1937-01GS-K)
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BLOCK DIAGRAM
TAIL
Semiconductor
DATA SCLK
TIMING CONTROL
DISPLAY DATA BUFFER
SEGMENT DECODER
DECIMAL COMMA TAIL
SEGMENT DRIVERS (ANODE)
DIGIT DRIVERS (GRID)
AD16 AD15 AD14 AD13 AD12 AD11 AD10
MSC1937-01
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Semiconductor
MSC1937-01
INPUT OUTPUT CONFIGURATION
Schematic Diagrams Logic Portion Input Circuit
INPUT
Schematic Diagrams Logic Portion Output Circuit
OUTPUT
Schematic Diagrams Driver Output Circuit
OUTPUT
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Semiconductor
MSC1937-01
CONFIGURATION (TOP VIEW)
TAIL SCLK DATA 40-Pin Plastic
VDD(GND)
Function Power supply (5V) Digit output Digit output TEST POWER-ON-RESET Data input Shift clock Segment output Segment output TAIL output POINT output
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Semiconductor
CONFIGURATION (TOP VIEW)
VDD(GND)
MSC1937-01
TAIL
VDD(GND)
VDD(GND)
SCLK
44-Pin Plastic
Function connection Digit output
DATA
Function connection Segment output Segment output TAIL output POINT output Power supply (5V) Digit output Digit output
Digit output TEST POWER-ON-RESET Data input Shift clock Segment output Segment output
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Semiconductor
MSC1937-01
DESCRIPTION
Symbol DATA SCLK Type Power supply Input display data/control data Input from Shift clock shift register Shifts data falling edge SCLK Power-on-reset input. Input level into this with power turned initializes this internal state after initialization follows: AD16, SGP, TAIL output state. duty cycle "0". digit counter value digits. buffer pointer AD1. output mode. Usually used output mode, outputs internal oscillation frequency. test mode, operates input pin. Grid output pins output format emitter follower. Segment output pins output format emitter follower. Description
AD16 TAIL,
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Semiconductor
MSC1937-01
ABSOLUTE MAXIMUM RATINGS
Parameter Power Supply Voltage Input Voltage Output Voltage Output Current Storage Temperature Symbol Digit ILOAD TSTG Segment Rating -0.3 +6.5 -0.3 +150 Unit
RECOMMENDED OPERATING CONDITIONS
Parameter Power Supply Voltage Input Voltage Input Voltage Clock Frequency Oscillation Frequency Frame Frequency Operating Temperature Symbol fOSC Condition Applicable input pins Min. Typ. Max. Unit
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Semiconductor
MSC1937-01
ELECTRICAL CHARACTERISTICS
Characteristics
+85°C, ±10%, ±0.5 Parameter Input Voltage Input Voltage Input Current Input Current Symbol VOH1 Output Voltage VOH2 Condition Applicable input pins Digit ILOAD -10mA ILOAD -10mA Segment ILOAD -5mA output current determined external pull-down resistor VOUT no-load Min. -2.0 -2.0 Max. VGG+3.0 10.0 10.0 Unit
Output Voltage Output Leakage Current Supply Current
IOUT
Characteristics
+85°C, ±10%, ±0.5 Parameter Self Oscillation Frequency Frame Frequency Clock Frequency SCLK Time SCLK Time Data Set-up Time Data Hold Time Rise Time Pulse Width POR-SCLK Time Internal Processing Time Symbol fOSC tCW-H tCW-L tPRZ tRESW tRESS tBUSY Condition When mounted unit Min. Max. Unit
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Semiconductor SCLK, Data Timing
MSC1937-01
tBUSY -3.6 SCLK tCW-H tCW-L -1.0
DATA
-3.6 -1.0
Data Word Transfer Timing
-4.5 tPRZ tRESW tRESS SCLK Data Word side side side Data Word side tBUSY
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Semiconductor
MSC1937-01
FUNCTIONAL DESCRIPTION
value 8-bit serial data determines whether input data into MSC1937-01 control data display data. Display Data setting "0", display data entered. address specified following MSB. Table provides code table.
Command Display Data Function Sets display contents
Don't care
Control Data control data input setting "1". addition, command type associated data with command determined
Command Buffer Pointer Control Digit Counter Control Duty Cycle Control Test Mode Function Specifies address. Sets number display digits. Sets duty value. Sets test mode.
Don't care
Buffer Pointer Control This command changes display contents only arbitrary digit. (The write address set.) decimal equivalent value bits should (desired digit number -2). (Example) When specifying AD4, value (0010).
Specified Digit Value Bits (1111) (0000) (0001) (0010) (0011) (0100) (0101) (0110) Specified Digit Value Bits (0111) (1000) (1001) (1010) (1011) (1100) (1101) (1110)
AD10 AD11 AD12 AD13 AD14 AD15 AD16
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Semiconductor Digit Counter Control This command sets number display digits. desired number digits bits
Number Display Digits Value Bits (0001) (0010) (0011) (0100) (0101) (0110) (0111) (1000) Number Display Digits
MSC1937-01
Value Bits (1001) (1010) (1011) (1100) (1101) (1110) (1111) (0000)
Duty Cycle Control This command sets duty cycle driver output. This command allows brightness adjusted 1/32 step. shown Figure blank time between digits between segments specified time hardware. Therefore, value ranges from
DISPLAY CYCLE time
time AD10 AD11 AD12 AD13 AD14 AD15 AD16 time time
time
Shown above timing when Duty Cycle time 1/fOSC) Fig. Output Timing
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Semiconductor Test Mode This mode user function, used outgoing inspection. Table Code Table
MSC1937-01
16-Segment Display
14-Segment Display
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Semiconductor
MSC1937-01
TAIL
TAIL
16-SEGMENT
14-SEGMENT
comma decimal point, display data display digit input, then data input. Note: Only when data entered, write address automatically incremented. other data, address specified Buffer Pointer Control command automatically incremented each time display data input.
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Semiconductor
MSC1937-01
APPLICATION CIRCUITS
MSC1937-01 TYPICAL GRID (DIGIT) DRIVER CIRCUIT TYPICAL ANODE (SEGMENT) DRIVER CIRCUIT VACUUM FLUORESCENT DISPLAY DATA SCLK DATA CLOCK HOST SYSTEM
-VGG
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Semiconductor
MSC1937-01
PACKAGE DIMENSIONS
(Unit
DIP40-P-600-2.54
Package material Lead frame material treatment Solder plate thickness Package weight
Epoxy resin alloy Solder plating more 6.10 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
MSC1937-01
(Unit QFP44-P-910-0.80-K
Mirror finish
Package material Lead frame material treatment Solder plate thickness Package weight
Epoxy resin alloy Solder plating more 0.35 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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