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W541E

Features: • Operating voltage: 2.4V to 5.5V (LCD drive voltage: 3.0V, or 4.5V)• Operating frequency up to 4 MHz• Crystal/RC oscillation circuit selectable by code option for system clock• Memory− 4096 * 16 bit program ROM (including 4K * 4 bit look-up table)− 25...

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SeekIC No. : 004544826 Detail

W541E: Features: • Operating voltage: 2.4V to 5.5V (LCD drive voltage: 3.0V, or 4.5V)• Operating frequency up to 4 MHz• Crystal/RC oscillation circuit selectable by code option for system...

W541E Data Sheet

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Part Number:
W541E
Supply Ability:
5000

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

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Product Details

Description



Features:

• Operating voltage: 2.4V to 5.5V (LCD drive voltage: 3.0V, or 4.5V)
• Operating frequency up to 4 MHz
• Crystal/RC oscillation circuit selectable by code option for system clock
• Memory
− 4096 * 16 bit program ROM (including 4K * 4 bit look-up table)
− 256 * 4 bit data RAM (including 16 working registers)
− 32 * 4 LCD data RAM
• Single or Dual Clock Mode
− Single (main oscillator only) or dual clock (both main and sub-oscilator) by mask option .
− Dual-clock slow operation mode: system is operated by the sub-oscillator (FOSC = Fs and Fm is stopped)
− Sub-oscillator is only 32.768 KHz crystal for dual clock mode.
− Main oscillator is crystal or RC oscillation by mask code option .
− Main clock : High-frequency clock (400 KHz to 4 MHz) or low-frequency clock (32.768 KHz) is selected by mask code option.
• 21 input/output pins
− Ports for input only: 2 ports/8 pins
− Input/output ports: 2 ports/8 pins
− Port for output only: 1 port /4 pins (high sink current to drive LEDs)
− MFP output pin: 1 pin (MFP)
• Power-down mode
− Hold function: no operation (except for oscillator)
− Stop function: no operation
• Five types of interrupts
− Four internal interrupts (Divider 0, Divider 1, Timer 0, Timer 1)
− One external interrupt (Port RC)
• LCD driver output
− 32 segment * 4 common
− Static, 1/2 duty (1/2 bias), 1/3 duty (1/2 or 1/3 bias), 1/4 duty (1/3 bias) driving mode can be selected
− LCD driver output pins can be used as DC output ports; selectable by code option
• MFP output pin
− Output is software selectable as modulating or nonmodulating frequency
− Works as frequency output specified by Timer 1
• Two built-in 14-bit clock frequency divider circuit (divider 0 and divider 1)
• Two built-in 8-bit programmable countdown timers
− Timer 0: one of two internal clock frequencies (FOSC/4 or FOSC/1024) can be selected
− Timer 1: includes an auto-reload function; and one of three internal clock frequencies (FOSC or FOSC/64,Fs) can be selected or falling edge of pin RC.0 can be selected (output through MFP pin)
• Built-in 18/14-bit watchdog timer selectable for system reset
• Powerful instruction set: 125 instructions
• 8-level subroutine (include interrupt) nesting
• Up to 1 S instruction cycle (with 4 MHz operating frequency)
• Packaged in 80-pin QFP


Pinout

Connection Diagram


Specifications

Parameter Ratings Unit
Supply Voltage to Ground Potential

Applied Input/Output Voltage		 -0.3 to +7.0

-0.3 to +7.0		 V

V
Power Dissipation 120 mW
Ambient Operating Temperature

Storage Temperature		 0 to +70

-55 to +150


Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device.




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