MSC1201 查看數據表（PDF） - Oki Electric Industry

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产品描述 (功能)

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MSC1201

60-Bit VFD Tube Driver with Digital Dimming and PWM Conversion Function

Oki Electric Industry 

¡ Semiconductor

MSC1201-xx

PIN DESCRIPTIONS

Pin

1-9

24-44

10, 11

16

15

18

20

19

23

22

14

21

13

12

17

Symbol I/O

SEG1-30 O Segment output pin for VFD

Description

GRID1, 2

OSC0

OSC1

CS

DATA

CLOCK

DATA

OUT

PWMIN

VK

INH

TEST1

VDD

GND

O Grid 1 and Grid 2 output pins for VFD

I RC oscillation pins. Connect a resistor between OSC1 and OSC0 pin and a capacitor

O between OSC0 and GND pin.

I Chip select input. Only when the high level is input to this pin, interfacing with a MCU

is available through "CLOCK" and "DATA" pins.

Therefore, 2-signal lines of "CLOCK" and "DATA" can be shared with other peripherals.

I Input which receives display data and digital dimming data from a MCU. Data is

shifted in at the rising edge of the shift clock.

I Serial clock input. Data that is input through "DATA" pin is input and output by

synchronization with the rising edge of the serial clock.

O Serial data output. Data is shifted out at the rising edge of the serial clock with the

delay of 64-bit time. This pin is used for cascading this LSI with other drivers such

as a LED driver.

I PWM signal input.

I Dimming select input. When the high level is input, daylight-mode output duty cycle

is about 100% for each grid time for PWM conversion and digital dimming mode.

When the low level is input, the dark-mode output duty cycle is determined by the

duty cycle of the PWM signal input to PWM IN and the digital dimming output duty

cycle is determined by digital dimming data.

I Blank Display input with a built-in pull-up resistor. When set to "L", all the drivers

output "L". When display duly is not controlled by this signal, leave this pin open.

I Test signal input pin. As this pin is used for shipping test of the LSI, leave open in the

normal operation mode.

— Power Supply

— Ground

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