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78K0/Ix2

The 78K0/Ix2 8-bit All Flash® microcontrollers are designed specifically for lighting applications requiring low cost, high efficiency and intelligent controls, namely fluorescent and LED lights.

 

Main Solutions

Key Features:

  • Operating voltage: VDD = 2.7 to 5.5 V
  • Max. frequency: 20 MHz
  • ROM capacities: 4 KB to 16 KB flash memory
  • RAM capacities: 384 bytes to 768 bytes
  • 16/20/30-pin plastic SSOP package,32-pin plastic WQFN package
  • 78K0 CPU core
  • Clock
  • High-speed system clock ... Selected from the following four sources
    • Ceramic/crystal oscillator: 1 to 10 MHz
    • External clock: 1 to 10 MHz
    • Internal high-speed oscillator: 4 MHz ± 2 % (-20 to +70°C), or 8 MHz ± 5 %(-40 to +85°C)
    • Clock for 16-bit timers X0 and X1: 40 MHz (TYP.) (when using PLL)
    • Internal low-speed oscillator 30 kHz (TYP.) ... Watchdog timer, timer clock in intermittent operation When using a 4 MHz clock, operation at 20 MHz is possible by using PLL.

 

  • I/O ports: 12 to 16 (CMOS I/O: 9 to 13, CMOS input: 3)
  • Timer
    • 16-bit timer X : PWM output (40 MHz (MAX.) clock operation), operation in conjunction with an external signal, synchronous output of up to four channels, A/D conversion trigger generation: 2 channels
    • 16-bit timer/event counter : PPG output, capture input, external event counter input: 1 channel
    • 8-bit timer H1 : PWM output, operable with low-speed internal oscillation clock: 1 channel
    • 8-bit timer/event counter 51 : External event counter input: 1 channel
    • Watchdog timer : Operable with low-speed internal oscillation clock: 1 channel

 

  • Serial interface
    • UART6 : Asynchronous 2-wire serial interface:0/ 1 channel
    • DALI : 2-wire serial interface for lighting control (slave): 0/1 channel
    • IICA : Clock synchronous 2-wire serial interface, multimaster supported standby can be released upon address match in slave mode: 0/1 channel
    • CSI11 : Clock synchronous 3-wire serial interface, operable as SPI in slave mode: 0/1 channel

 

  • Multiplier (8 bits x 8 bits = 16 bits, 16 bits x 16 bits = 32 bits, 1-clock operation)
  • 10-bit resolution A/D conversion: 5/6/9 channels
  • Operational amplifier (Products with operational amplifier only): 1 channel
  • Comparator: 3 channels
  • Power-on-clear (POC) circuit
  • Low-voltage detector (LVI) circuit (An interrupt/reset (selectable) is generated when the detection voltage is reached)) - Detection voltage: Selectable from ten levels between 2.84 and 4.22 V
    * 1.91 V is used only when the power is turned on when the LVI default start is set.
  • Single-power-supply flash memory
    • Flash self programming enabled
    • Software protection function: Protected from outside party copying (no Flash reading command)

 

  • Safety function
    • Watchdog timer operated by clock independent from CPU ... A hang-up can be detected even if the system clock stops
    • Supply voltage drop detectable by LVI ... Appropriate processing can be executed before the supply voltage drops below the operation voltage
    • Equipped with option byte function ... Important system operation settings set in hardware

 

  • On-chip debug function ... Available to control for the target device, and to reference memory
  • Operating ambient temperature: TA = -40 to +105°C

 

Pin Count / Memory Size Lineup:

78K0/Ix2-Pin Count/Memory Size

Below you will find information to support the development of your application.
You can find an explanation of orderable part numbers here.

 

Resources for Software and Hardware

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Software Design Support

Title Description
CS+ An integrated development environment that can be used for coding, assembling/compiling, and simulation. (Also included with Renesas Starter Kits.)
E1 A standard Renesas on-chip debugging emulator that enables users to carry out ample debugging for real development at low cost. (Also included with starter kits.)
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