Read code printed on paper and play the corresponding audio with the Talking Pen featuring the Renesas RL78/G14 microcontroller, ISL80505 single output low dropout voltage regulator (LDO) and ISL6294 high input voltage charger.

Description

The Talking Pen solution reads code printed on paper and plays the corresponding audio. Using the industry's smallest low-power RL78/G14 microcontroller, the ID decoder and image sensor reproduce sound files corresponding to the scanned content. Audio data can be saved from a PC to a Micro SD card with a USB cable. It uses the ISL80505 single output low dropout voltage regulator (LDO) capable of providing up to 500mA of output current from an input voltage of 1.8V to 6V. Battery charge control is performed by the ISL6294 high input voltage charger.

Key Features

  • Minimum instruction execution time: Can be changed from high speed (0.03125μs at 32MHz operation with high-speed on-chip oscillator) to ultra-low speed (30.5μs at 32.768kHz operation with subsystem clock)
  • General-purpose registers: (8-bit register × 8) × 4 banks
  • ROM: 128KB, RAM: 16KB, data flash: 8KB
  • Selectable high-speed on-chip oscillator clock: 64/48/32/24/16/12/8/6/4/3/2/1 MHz (TYP.)
  • On-chip debug function
  • On-chip selectable power-on-reset (POR) circuit
  • On-chip voltage detector (LVD)
  • On-chip watchdog timer (operable with the dedicated low-speed on-chip oscillator)
  • On-chip key interrupt function
  • On-chip clock output/buzzer output controller
  • On-chip BCD (binary-coded decimal) correction circuit
  • I/O port: 26
  • Timer
    • 16-bit timer: 8 channels
    • 12-bit interval timer: 1 channel
  • Serial interface
    • CSI: 3 channels
    • UART: 3 channels
    • Simplified I2C communication: 3 channels
    • Multi-master I2C communication: 1 channel
  • 8/10-bit resolution A/D converter: 8 channels
  • 8/10-bit resolution D/A converter: 1 channel
  • Comparator: 2 channels
  • Data transfer controller (DTC)
  • Event link controller (ELC)
  • Standby function: HALT mode or STOP mode or SNOOZE mode
  • Power supply voltage: VDD = 1.6V to 5.5V
  • Operating ambient temperature: TA = -40 °C to +85 °C

Pen Reader

Related Products

RL78/G14
ISL80505
ISL6294

7:53
Renesas demonstrates the Talking Pen quick solution featuring the RL78/G14 microcontroller.
7:53
Renesas demonstrates the Talking Pen quick solution featuring the RL78/G14 microcontroller.
7:53
Renesas demonstrates the Talking Pen quick solution featuring the RL78/G14 microcontroller.