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Part Number: NT6881
Description: The NT6881 is a single chip micro-controller for USB keyboard applications. It incorporates a 6502 8-bit CPU core, 6...
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NT6881
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DataSheet
General Description
NT6881 General Description
The NT6881 is a single chip micro-controller for USB keyboard applications. It incorporates a 6502 8-bit CPU core, 6K bytes of mask ROM, and 256 bytes of RAM used as working RAM and stack area. It also includes 29 programmable bi-directional I/O pins with built-in resistors, and one 8-bit pre-loadable base timer.
Additionally, it includes a built-in power-on reset, a builtin low voltage reset, an oscillator that requires crystal or ceramic resonator applied, and a watch-dog timer that prevents system standstill.
NT6881 Maximum Ratings
DC Supply Voltage . . . . . . . . . . . .. .. .. . . -0.3V to +7.0V
Input/Output Voltage . . . . . . .GND - 0.2V to VDD + 0.2V
Operating Ambient Temperature . . . . . . . . .0 to 70
Storage Temperature . . . . . . . . . . . . . -55 to +125
Operating Voltage (VDD) . . . . . . . . . . . +4.4V to +5.25V
Input/Output Voltage . . . . . . .GND - 0.2V to VDD + 0.2V
Operating Ambient Temperature . . . . . . . . .0 to 70
Storage Temperature . . . . . . . . . . . . . -55 to +125
Operating Voltage (VDD) . . . . . . . . . . . +4.4V to +5.25V
NT6881 Features
Built-in 6502 8-bit CPU
3 MHz CPU operation frequency when oscillator is running at 6 MHz
6K bytes of ROM
256 bytes of SRAM
One 8-bit programmable base timer with pre-divider circuit
29 programmable bi-directional I/O pins including two external interrupts
3 LED direct sink pins with internal serial resistors
On-chip oscillator (Crystal or Ceramic Resonator)
Watch-dog timer reset
Built-in power on reset
USB interface
3 Endpoints provided
Remote Wakeup provided
CMOS technology for low power consumption
40-pin DIP package, 42-pad Chip Form and COB
3 MHz CPU operation frequency when oscillator is running at 6 MHz
6K bytes of ROM
256 bytes of SRAM
One 8-bit programmable base timer with pre-divider circuit
29 programmable bi-directional I/O pins including two external interrupts
3 LED direct sink pins with internal serial resistors
On-chip oscillator (Crystal or Ceramic Resonator)
Watch-dog timer reset
Built-in power on reset
USB interface
3 Endpoints provided
Remote Wakeup provided
CMOS technology for low power consumption
40-pin DIP package, 42-pad Chip Form and COB
NT6881 Connection Diagram
NT6881
PDF/DataSheet Download
- Datasheet: NT6881
- File Size: 804109 KB
- Manufacturer: ETC [ETC]
- Click here to Download
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