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W742C814

Features: • Operating voltage: 2.4V - 5.5V• Dual-clock operation mode (Connect to 32768 Hz crystal only) Fslow oscillator: 32768 Hz OSC Ffast oscillator: PLL (Phase Lock Loop) output enable• Memory − 4096 x 16 bits program ROM (including 16K x 4 bit look-up table) − 1...

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SeekIC No. : 004544943 Detail

W742C814: Features: • Operating voltage: 2.4V - 5.5V• Dual-clock operation mode (Connect to 32768 Hz crystal only) Fslow oscillator: 32768 Hz OSC Ffast oscillator: PLL (Phase Lock Loop) output ena...

W742C814 Data Sheet

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Part Number:
W742C814
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/20

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Product Details

Description



Features:

• Operating voltage: 2.4V - 5.5V
• Dual-clock operation mode (Connect to 32768 Hz crystal only)
    Fslow oscillator: 32768 Hz OSC
    Ffast oscillator: PLL (Phase Lock Loop) output enable
• Memory
   − 4096 x 16 bits program ROM (including 16K x 4 bit look-up table)
   − 1024 x 4 bits data RAM (including 16 nibbles x 16 pages working registers)
   − 32 x 4 LCD data RAM
• 20 input/output pins
   − Port for input only: 1 ports/4 pins (RC)
   − Input/output ports: 3 ports/12 pins (RA, RB & RD)
   − High sink current output port for LED driving: 1 port /4 pins (RE)
• Power-down mode
   − Hold function: no operation (excluding Fslow and Fosc oscillator)
   − Stop function: no operation (Fslow and Fosc oscillator are stopped)
   − Dual-clock slow operation mode: system is operated by 32768 Hz (FOSC = Fslow and Ffast stopped)
• Five types of interrupts
   − Four internal interrupts (Divider0, Divider1, Timer 0, Timer 1)
   − One external interrupts (RC Port)
• LCD driver output
   − 32 segments x 4 commons
   − 1/4 duty 1/3 bias driving mode
• MFP output pin
   − Output is software selectable as modulating or non-modulating frequency
   − Works as frequency output specified by Timer 1
• DTMF output pin (PLL should be enable in this function)


Pinout

Connection Diagram


Specifications

PARAMETER RATING UNIT
Supply Voltage to Ground Potential -0.3 to +7.0 V
Applied Input/Output Voltage -0.3 to +7.0 V
Power Dissipation 120 mW
Ambient Operating Temperature 0 to +70 °C
Storage Temperature -55 to +150 °C



Description

The W742C814 is a high-performance 4-bit micro-controller (C) that provides an LCD driver. The device contains a 4-bit ALU, two 8-bit timers, two dividers (for two oscillators) in dual-clock operation, a 32 * 4 LCD driver, five 4-bit I/O ports (including 1 output port for LED driving), and one channel DTMF generator. There are also five interrupt sources and 8-levels subroutine nesting for call subroutine or interrupt applications. The W742C814 operates on very low current and has two power reduction modes, that is the dual-clock slow operation and STOP mode, which help to minimize power dissipation.




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