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AD7312

Features: Serial interface (CLK, STB, DIN, DOUT) Key scanning (6* 4 matrices)Programming display modes (11-digit & 11-segment to 6-digit & 16-segment)Programming dimming stepHigh-voltage output (VDD-35V max).2 channels LED ports.2-pin General-purpose input portBuilt-in oscillatorNo externa...

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SeekIC No. : 004270000 Detail

AD7312: Features: Serial interface (CLK, STB, DIN, DOUT) Key scanning (6* 4 matrices)Programming display modes (11-digit & 11-segment to 6-digit & 16-segment)Programming dimming stepHigh-voltage out...

AD7312 Data Sheet

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Part Number:
AD7312
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

Serial interface (CLK, STB, DIN, DOUT)
Key scanning (6* 4 matrices)
Programming display modes (11-digit & 11-segment to 6-digit & 16-segment)
Programming dimming step
High-voltage output (VDD-35V max).
2 channels LED ports.
2-pin General-purpose input port
Built-in oscillator
No external resistor necessary for driver outputs (provides PMOS open-drain and pull-low resistor output)
Remote signal input port
Remote signal output port
3 STANDBY master output ports (controlled by remote STANDBY-KEY, STANDBY-KEY and STANDBY SCAN-KEY)
8 WAKE UP master output ports (controlled by 2 remote WAKE_UP-KEY, 3 WAKE_UP SCAN-KEY, remote STANDBY-KEY, STANDBY-KEY and  STANDBY SCAN-    KEY)
NEC 6121/6122 infrared protocol support


Pinout

Connection Diagram


Specifications

Parameter Symbol Rating Unit
Logic Supply Voltage VDD -0.5 to +7.0 V
Driver Supply Voltage VEE VDD +0.5 to VDD -40 V
Logic Input Voltage VI1 -0.5 to VDD +0.5 V
VFD Driver Output Voltage VO2 VEE-0.5 to VDD +0.5 V
LED Driver Output Current IO1 +15 mA
VFD Driver Output Current IO2 -40 (grid)
-15 (segment)		 mA
Operating ambient
temperature		 TOPT -25 to +85 °C
Storage temperature Tstg -50 to +125 °C



Description

The AD7312 is a VFD (Vacuum Fluorescent Display) controller/driver with STANDBY controller. AD7312 is driven on a 1/4 to 1/11 duty factor (include key scan). AD7312 consists of 5 segment output lines, 6 segment/key scan output lines, 6 grid output lines, 5 segment/grid output drive lines, 2 LED output ports, a display memory, a control circuit, and a key scan circuit. In addition, it includes 2 input ports, RMIN and SKEY, RMIN receives the signal form the STANDBY-KEY of remote sensor, SKEY can be controlled by an external switch. Both of them and STANBY SCAN-KEY can control the output level (High) of PSV port to realize the STANDBY function. To leave the standby mode, we can use the 2 remote WAKE_UP-KEY, 3 WAKE_UP SCAN-KEY, remote STANDBY-KEY, STANDBY-KEY and STANDBY SCAN-KEY to control the output level (Low) of PSV port to realize the Wake Up function. Serial data is input to the AD7312 through a four-line serial interface.




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