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W741C250

Features: · Operating voltage: 2.2V 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· High-frequency clock (400 KHz to 4 MHz) or low-frequency clock (32.768 KHz) for crystal mode by code option· Me...

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SeekIC No. : 004544933 Detail

W741C250: Features: · Operating voltage: 2.2V 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· High-freque...

W741C250 Data Sheet

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Part Number:
W741C250
Supply Ability:
5000

Price Break

  • Qty
  • 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: 2.2V 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
· High-frequency clock (400 KHz to 4 MHz) or low-frequency clock
   (32.768 KHz) for crystal mode by code option
· Memory
   - 2048 ´ 16 bit program ROM (including 2K ´ 4 bit look-up table)
   - 128 ´ 4 bit data RAM (including 16 working registers)
   - 24 ´ 4 LCD data RAM
· 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 for LED driving)
   - MFP output pin: 1 pin (MFP)
· Power-down mode
   - Hold function: no operation (except for oscillator)
   - Stop function: no operation (including oscillator)
· Five types of interrupts
   - Three internal interrupts (Divider 0, Timer 0, Timer 1)
   - Two external interrupts (Port RC and INT pin)
· LCD driver output
   - 24 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 port by code option


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 W741C250 is a high-performance 4-bit microcontroller (mC) that provides an LCD driver. The device contains a 4-bit ALU, two 8-bit timers, a divider, a 24 ´ 4 LCD driver, and five 4-bit I/O ports (including 1 output port for LED driving). There are also five interrupt sources and 8-level subroutine nesting for interrupt applications. The W741C250 operates on low voltage and very low current and has two power reduction modes, hold mode and stop mode, which help to minimize power dissipation.

The W741C250 is suitable for remote controllers, watches and clocks, multiple I/O products, keyboard controllers, speech synthesis LSI controllers, and other products.




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