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Japan
78K0S/KB1+ Microcontrollers
Features
- Supply voltage: VDD = 2.0 to 5.5 V
* Use these products in the following voltage range because the detection voltage (VPOC) of the POC circuit is the supply voltage range.
Standard product, (A) grade product: 2.2 to 5.5 V, (A2) grade product: 2.26 to 5.5 V - Max. Frequency 10 MHz
- ROM capacities: 2 KB to 4 KB flash memory
- RAM capacities: 128 bytes to 256 bytes
- 30-pin Plastic SSOP and 32-pin SDIP package
- 78K0S CPU core
- Minimum instruction execution time: 0.2 µs (with 10 MHz @4.0 to 5.5 V operation)
- Clock
High-speed system clock ... Selected from the following three sources
- Ceramic/crystal resonator: 2 to 10 MHz (Standard product, (A) grade product) / 2 to 8 MHz ((A2) grade product)
- External clock: 2 to 10 MHz (Standard product, (A) grade product) / 2 to 8 MHz ((A2) grade product)
- High-speed internal oscillator: 8 MHz ±3% (-10 to +70°C), 8 MHz ±5% (Standard product, (A) grade product: -40 to +85°C, (A2)grade product: -40 to +125°C)
- Low-speed internal oscillator 240 kHz (TYP.) ... Watchdog timer, timer clock in intermittent operation - I/O ports: 26 (CMOS I/O: 24, CMOS input: 1, CMOS output: 1)
- Timer: 4 channels
- 16-bit timer/event counter: 1 channel ... Timer output x 1, capture input x 2
- 8-bit timer: 2 channels ... PWM output x 1
- Watchdog timer: 1 channel ... Operable with low-speed internal oscillation clock - On-chip power-on-clear (POC) circuit (A reset is automatically generated when the voltage drops to 2.1 V (TYP.) or below)
- On-chip low voltage detector (LVI) circuit (An interrupt/reset (selectable) is generated when the detection voltageis reached)
- Detection voltage: Selectable from ten levels between 2.35 and 4.3 V - Single-power-supply flash memory
- Flash self programming enabled
- Software protection function: Protected from outside party copying (no flash reading command)
- Time required for writing by dedicated flash memory programmer: Approximately 3 seconds (4 KB)
* Flash programming on mass production lines supported - 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 - Operating temperature range:
- Standard product, (A) grade product: TA = -40 to +85°C
- (A2) grade product: TA = -40 to +125°C
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