msm9223 Oki Semiconductor, msm9223 Datasheet

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msm9223

Manufacturer Part Number
msm9223
Description
27-bit Duplex/triplex Vfd Controller/driver With Digital Dimming, Adc And Keyscan
Manufacturer
Oki Semiconductor
Datasheet

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E2C0044-19-96
¡ Semiconductor
¡ Semiconductor
MSM9223
27-Bit Duplex/Triplex VFD Controller/Driver with Digital Dimming, ADC and Keyscan
GENERAL DESCRIPTION
The MSM9223 is a full CMOS controller/driver for Duplex or Triplex vacuum fluorescent
display tube. It conststs of 27-segment driver outputs and 3-grid pre-driver outputs, so that it
can drive directly up to 81-segment VFD.
MSM9223 features a digital dimming function, a 6-ch ADC, a 5 ¥ 5 keyscan circuit and an encoder
type switch interface.
MSM9223 provides an interface with a microcontroller only by three signal lines: DATA I/O,
CLOCK and CS.
FEATURES
• Supply voltage (V
• Duplex/Triplex selectable
• Applicable VFD tube
• 27-segment driver outputs
• 3-grid pre-driver outputs
• Built-in digital dimming circuit (10-bit resolution)
• Built-in 6-ch A/D converter
• Built-in 5 ¥ 5 keyscan circuit
• Interface circuit for an encoder type rotary switch
• Built-in oscillation circuit (external R and C)
• Built-in Power-On-Reset circuit
• Package:
64-pin plastic QFP (QFP64-P-1420-1.00-BK)
DD
)
: 8 to 18.5V (Built-in 5V regulator for logic)
: 2 Grids ¥ 27 Anodes VFD tube
: 3 Grids ¥ 27 Anodes VFD tube
: I
: I
I
OH
OH
OL
Product name: MSM9223GS-BK
=10mA at V
=–5mA at V
=–10mA at V
OL
OH
Previous version: Aug. 1999
OH
=2V
=V
=V
DD
This version: Sep. 1999
DD
–0.8V (SEG1 to 19)
–0.8V (SEG20 to 27)
MSM9223
1/24

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msm9223 Summary of contents

Page 1

... It conststs of 27-segment driver outputs and 3-grid pre-driver outputs, so that it can drive directly up to 81-segment VFD. MSM9223 features a digital dimming function, a 6-ch ADC ¥ 5 keyscan circuit and an encoder type switch interface. MSM9223 provides an interface with a microcontroller only by three signal lines: DATA I/O, CLOCK and CS ...

Page 2

... Out1-27 4H 27bit Shift Register Dimming Latch POR POR POR Timing Generator 5H 5 ¥ 5 Key Scan and Encoder Switch Interface 6H COL1 COL5 ROW1 MSM9223 GRID1 GRID2 GRID3 3 Grid pre Driver in1-27 Out1-27 Segment Latch 3 in1-27 in1-10 Out1-10 10bit Digital Dimming DIM OUT ...

Page 3

... SEG27 4 GRID1 5 GRID2 6 GRID3 7 D-GND 8 ROW1 9 10 ROW2 ROW3 11 12 ROW4 ROW5 13 COL1 14 COL2 15 COL3 16 COL4 17 COL5 NC: No connection 64-pin Plastic QFP MSM9223 SEG11 49 SEG10 48 SEG9 47 SEG8 46 SEG7 45 SEG6 44 SEG5 43 SEG4 42 SEG3 41 SEG2 40 SEG1 39 CH6 38 CH5 37 CH4 36 CH3 ...

Page 4

... Key switch scanning outputs. Normally low level is output through these pin. When any switch of key matrix is depressed or released, key scanning is started and is continued until keyscan stop mode is selected. When keyscan stop mode is selected, all outputs of ROW1 back to low level. MSM9223 level. CC 4/24 ...

Page 5

... Connect these pins to the SYNC IN1 and SYNC IN2 pins of a slave side. RC oscillator connecting pins. Connect a resistor (R2) between the V and a capacitor (C2) between the OSC0 pin and the GND, and a capacitor (C3) between the V CC MSM9223 and OSC0 pins ...

Page 6

... 10kW±5 27pF±5% OSC 10kW±5% 1/3 Duty 27pF±5% 1/2 Duty 2 T — OP MSM9223 Rating Unit –0.3 to +20 V –0.3 to +6.0 V 590 mW –55 to +150 °C –10.0 to +2.0 mA –20.0 to +2.0 mA –7.0 to +20.0 mA –2.0 to +2.0 mA Min. Typ. Max. Unit 8 ...

Page 7

... OL1 SEG20 OL2 OL2 V =9.5V DD GRID1 OL3 OL3 *5) I OL4 OL4 V f =3.3MHz, no load DD DD OSC =0.01mF±10 MSM9223 (Ta=–40 to +85°C, V =8.0 to 18.5V) DD Min. Max. 3.8 5.5 0.0 0.8 –5.0 +5.0 –100 –5.0 –5.0 +5.0 –300 –70 V –0.8 V =–5mA –0.8 V =–10mA DD ...

Page 8

... =20 =100pF =80 Mounted in a unit PRZ t Mounted in a unit, V POF DD t — RSOFF MSM9223 (Ta=–40 to +85°C, V =8.0 to 18.5V) DD Min. Max. Unit — 1.0 MHz 400 — ns 400 — ns 400 — — ms 400 — ns 400 — ...

Page 9

... Reset Timing t V PRZ DD t RSOFF CS Driver Output Timing t R SEG1-27, GRID1-3 1 VALID POF t F MSM9223 –3.8V t CSL –0.8V t CSH –3.8V –0.8V –3.8V VALID –0.8V –3.8V –0.8V t CSH –3.8V –0.8V –3.8V –0.8V –0.8V DD –0.0V –3.8V –0.0V –0.8V DD – ...

Page 10

... V Condition — — — — 10kW±5 27pF±5% (Ta = –40 to +85°C, V Condition R2 = 10kW±5 27pF± 10kW±5 27pF±5% Keyscan Cycle Time Keyscan Pulse Width MSM9223 = 8 Min. Typ. Max. Unit — — ±1 LSB 4.5 5.0 5.5 V — ...

Page 11

... MSM9223 V DD D-GND 8bit times V DD D-GND V DD D-GND 5bit times V DD D-GND ...

Page 12

... MSM9223 V DD D-GND 960bit times V DD D-GND V DD D-GND 957bit times V DD D-GND ...

Page 13

... The output data from the DATA I/O pin is output from the shift register at the rising edge of the serial clock. MSM9223 outputs 48-bit (6ch ¥ 8bits) A/D data (A11 to A68) and 29-bit key data (S11 to S55, R1 and Q1 to Q3). To receive these data, the mode data (M0 to M2) mast be sent first and then CS must be set once to Low level and set again to High level ...

Page 14

... Semiconductor Segment Data Input [Function Mode • MSM9223 receives the segment data when function mode are selected. • The same segment data is transferred to the 3 segment data latch correspond to GRID the same time when the function mode 0 is selected. ...

Page 15

... Semiconductor Digital Dimming Data Input [Function Mode: 4] • MSM9223 receives the digital dimming data when function mode 4 is selected. • The output duty changes in the range of 0/1024 (0%) to 1016/1024 (99.2%) for each grid. • The 10-bit digital dimming data is input from LSB. ...

Page 16

... MSM9223 output the switch data when function mode 6 is selected. • To select this mode, the only mode data (M0 to M2) is needed. • When MSM9223 recieves this mode, the DATA I/O pin is changed to an output pin. • 29-bit switch data come out from the DATA I/O pin synchronizing with the rise edge of the clock. • ...

Page 17

... MSM9223 output the A/D data when function mode 7 is selected. • To select this mode, the only mode data (M0 to M2) is needed. • When MSM9223 recieves this mode, the DATA I/O pin is changed to an output pin. • 48-bit A/D data come out from the DATA I/O pin synchronizeing with the rise edge of the clock. • ...

Page 18

... INT also goes to high level, so this signal can be used as an interrupt. The INT stays High level until the switch data-output mode is selected. A chattering absorption time B UP (internal) INT Fig.2 The Input and Output Timing in Case of Clockwise. B Interrupt Generation Direction Latch R1 MSM9223 for INT Output data 18/24 ...

Page 19

... When the Direction latch is input DOWN the output R goes "1". But if the UP pulse is input and the counts value change to plus value, the output R goes to "0" Q1, Q2, Q3 100 010 011 100 101 110 Fig.4 100 Fig.5 MSM9223 111 111 000 100 010 19/24 ...

Page 20

... INT signal goes "L". CS Data I/O CLOCK INT When CS goes L, the up/down counter is reset and the INT goes "L" ROW1 ROW2 Fig.6 MSM9223 ROW5 Rotary 20/24 ...

Page 21

... To stop keyscanning required to select the keyscan stop mode once again. Depress Keyscan INT CS MODE5 MODE5 : Keyscan stop 1 Cycle Depress Release Keyscan MODE5 MSM9223 Keyscan stop mode is selected. MODE5 21/24 ...

Page 22

... MSM9223 SEG27 V DISP GRID1 DUP/TRI GRID2 VREG GRID3 CH1 to 6 GND 5 ¥ 5 ROW1 to 5 Key matrix COL1 to 5 SYNC OUT 2 SYNC OUT 1 DIM OUT GND CS DATA I/O CLOCK V CC OSC0 L-GND GND DISP MSM9210 SEG1 SEG1 (SLAVE) SEG32 DUP/TRI ...

Page 23

... MSM9223 V DISP VREG CH1 to 6 GND 5 ¥ 5 ROW1 to 5 Key matrix COL1 to 5 SYNC OUT 2 DUP/TRI SYNC OUT 1 DIM OUT GND CS DATA I/O CLOCK V CC OSC0 L-GND GND DISP MSM9210 SEG1 SEG1 (SLAVE) SEG27 SEG32 GRID1 GRID1 DUP/TRI GRID2 ...

Page 24

... 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). MSM9223 (Unit : mm) Package material Epoxy resin ...

Page 25

NOTICE 1. The information contained herein can change without notice owing to product and/or technical improvements. Before using the product, please make sure that the information being referred to is up-to-date. 2. The outline of action and examples for application ...

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