NEC   

UPD78F8025 Series 1024B Ram 8-Bit Motor/Lighting Control Microcontroller LQFP-64

Mfr Part#: UPD78F8025GK-SSA-AX
Mounting Method:  SurfaceMount 
Package Style:  LQFP-64 
Packaging:  EACH

 
 

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$7.39 CAD (each)
1+ $7.39

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Overview

Product Highlight

  • RAM Size: 1.024 kB
  • Flash Size: 32 kB
  • EPROM Size: 
  • Number of I/O Lines: 23
  • Speed: 20 MHz
  • Supply Voltage: 1.8 to 5.5 V

Designers of LED lighting are always looking for ways to reduce the cost and size of the power management solution in applications that use more than one LED. NEC Electronics has recently developed a solution that reduces both.

NEC’s 32bit μPD78F8025 high-current driving (HCD)/LED microcontroller is a 4-channel constant-current driver with embedded flash memory integrated into a single chip for maximum savings of cost and space. Each of the MCU’s constant-current driver channels implements an individual, hardware-based hysteretic regulator controller with a switching frequency up to 1MHz, which the MCU can control through pulse-width modulation (PWM) signals.

 

Key Features Include

Flash Microcontroller:

  • 4 – channel buck or boost current regulators
  • 350 mA – 1500 mA per channel with external FETs
  • Up to 1MHz switching frequency
  • 9 – 38 V input voltage range ideal for emergency vehicles
  • Soft start to reduce EMI effect on adjacent electronic equipment
  • Thermal shutdown

Constant High Current Driver

  • 32 flash memory, 1 KB SRAM
  • 4 – channel 8-bit Pulse With Modulation timers for dimming, flashing or strobing
  • 4 – channel 10-bit A/D converter
  • Watchdog timer
  • 16-bit capture/compare time
  • Under-voltage lockout
  • 3 – channel serial interfaces (UART, UART/CSI, I2C)
  • Internal 8 MHz oscillator

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