Document
E2C0038-39-95 ¡ Semiconductor
¡ Semiconductor MSM9210
GENERAL DESCRIPTION
This version: Sep. 1999 MSM9210 Previous version: Aug. 1999
32-Bit Duplex/Triplex (1/2 duty / 1/3 duty) VF Controller/Driver with Digital Dimming
The MSM9210 is a full CMOS controller/driver for Duplex or Triplex (1/2 duty or 1/3 duty) vacuum fluorescent display tube. It consists of a 32-segment driver multiplexed to drive up to 96 segments, and 10-bit digital dimming circuit. MSM9210 features a selection of a master mode and a slave mode, and therefore it can be used to expand segments for the VFD driver with keyscan and A/D converter function. MSM9210 provides an interface with a microcontroller only by three signal lines: DATA IN, CLOCK and CS.
FEATURES
• Logic supply voltage (VDD) : 4.5 to 5.5V : 8 to 18V • Driver supply voltage (VDISP) • Duplex/Triplex (1/2 duty / 1/3 duty) selectable DUP/TRI=1/2 duty selectable at "H" level DUP/TRI=1/3 duty selectable at "L" level • Number of display segments Max. 64-segment display (during 1/2 duty mode) Max. 96-segment display (during 1/3 duty mode) • Master/Slave selectable M/S=Master mode selectable at "H" level M/S=Slave mode selectable at "L" level • Interface with a microcontroller Three lines: CS, CLOCK, and DATA IN • 32-segment driver outputs : IOH=–5mA at VOH=VDISP–0.8V (SEG1 to 22) (can be directly connected to VFD tube : IOH=–10mA at VOH=VDISP–0.8V (SEG23 to 32) and require no external resisters) : IOL=500mA at VOL=2V (SEG1 to 32) • 3-grid pre-driver outputs : IOH=–5.0mA at VOH=VDISP–0.8V (require external drivers) IOL=10mA at VOL=2V • Logic outputs : IOH=–200mA at VOH=VDD–0.8V IOL=200mA at VOL=0.8V • Built-in digital dimming circuit (10-bit resolution) • Built-in oscillation circuit (external R and C) • Built-in Power-On-Reset circuit • Package options: 56-pin plastic QFP (QFP56-P-910-0.65-2K) Product name: MSM9210GS-2K 64-pin plastic QFP (QFP64-P-1414-0.80-BK) Product name: MSM9210GS-BK
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MSM9210
BLOCK DIAGRAM
GRID1 GRID2 GRID3
SEG1
SEG32
VDISP D-GND VDD L-GND
0H
32 Segment Driver
3 Grid pre Driver
Power On Reset
4H
POR Out1-32 96 to 32 Segment Control in1-32
in1-32
in1-32
1H
Mode Select
POR
0H POR
in1-3
Out1-32 Segment Latch 1 in1-32
2H 0H POR
Out1-32 Segment Latch 2 in1-32
3H 0H POR
Out1-32 Segment Latch 3 in1-32
CS CLOCK DATA IN Control
Out1-3 3bit Shift Register
POR
Out1-32 32bit Shift Register
4H POR
in1-10 Dimming Latch Out1-10
POR
OSC0 OSC1 DIM IN SYNC IN1 SYNC IN2 M/S DUP/TRI
OSC
POR
10bit Digital Dimming
DIM OUT SYNC OUT1 Timing Generator SYNC OUT2
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MSM9210
INPUT AND OUTPUT CONFIGURATION
Schematic Diagram of Driver Output Circuit
VDISP
VDISP OUTPUT
D-GND
D-GND
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PIN CONFIGURATION (TOP VIEW)
SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 GRID1
GRID2 10 GRID3 11 D-GND 12 NC 13 VDD 14
49 D-GND 55 SEG24 54 SEG23 53 SEG22 52 SEG21 51 SEG20 50 SEG19 48 SEG18 47 SEG17 46 SEG16 56 VDISP
1 2 3 4 5 6 7 8 9
MSM9210
45 SEG15
44 SEG14
43 VDISP
42 SEG13 41 SEG12 40 SEG11 39 SEG10 38 SEG9 37 SEG8 36 SEG7 35 SEG6 34 SEG5 33 SEG4 32 SEG3 31 SEG2 30 SEG1 29 NC
DIM IN 15
SYNC IN 1 16
SYNC IN 2 17
CS 18
CLOCK 19
DATA IN 20
L-GND 21
OSC1 22
OSC0 23
DUP/TRI 24
M/S 25
SYNC OUT 2 26
SYNC OUT 1 27
NC: No connection 56-pin Plastic QFP
DIM OUT 28
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MSM9210
56 D-GND 55 SEG18
62 SEG24 61 SEG23
60 SEG22 59 SEG21
58 SEG20 57 SEG19
54 SEG17 53 SEG16
52 SEG15 51 SEG14
64 VDISP 63 NC
NC SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32
50 NC 49 VDISP
48 NC 47 NC 46 SEG13 45 SEG12 44 SEG11 43 SEG10 42 SEG9 41 SEG8 40 SEG7 39 SEG6 38 SEG5 37 SEG4 36 SEG3 35 SEG2 34 SEG1 33 NC
1 2 3 4 5 6 7 8
9 GRID1 10 GRID2 11
GRID3 12 D-GND 13 NC 14 VDD 15 NC 16
NC 17 DIM IN 18
SYNC IN1 19 SYNC IN2 20
CS 21 CLOCK 22
DATA IN 23 L-GND 24
OSC1 25 OSC0 26
DUP/TRI 27 M/S 28
SYNC OUT2 29 SYNC OUT1 30
NC: No connection 64-pin Plastic QFP
DIM OUT 31 NC 32
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MSM9210
PIN DESCRIPTIONS
Pin QFP56 43,56 14 12, 49 21 30 to 42, SEG1 to 22 44 to 48, 50 to 53 QFP64 49,64 15 13, 56 24 34 to 46, 51 to 55, 57 to 60 O
Symbol VDISP VDD D-GND L-GND
Type — — — —
Description Power supply pins for VFD driver circuit. 43 pin and 56 pin should be connected externally. Power supply pin for logic drive. D-GND is ground pin for the VFD driver circuit. L-GND is ground pin for the logic circuit. 12pin, 21pin and 49pin should be connected externally. Segment (anode) signal output pins for a VFD tube. These pins can be directly connected to the VFD tube. External circuit is not required. IOH£–5 mA Segment (anode) signal output pins for a VFD tube. These pins can be directly connected to the VFD tube. External circuit is not required. IOH£–10 mA Inverted Grid signal output pins.
SEG23 to 32
1 to 8, 54, 55
2 to 9, 61, 62
O
GRID1 to 3
9, 10, 11
10, 11, 12
O
For pre-driver, the external circuit is required. IOL£10 mA Chip select input pin. Data is not t.