W541L260 Selling Leads, Price trend, W541L260 DataSheet download, circuit diagram from SeekIC.com

Features: • Operating voltage: 1.2V−1.8V (LCD drive voltage: 3.0V, or 4.5V)• Single or Dual Clock Mode− Single (main oscillator only) or dual clock (both main and sub-oscilator) by mask option .− Sub-oscillator is only 32.768 KHz crystal for dual clock mode.− Ma...

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SeekIC No. : 004544831 Detail

W541L260: Features: • Operating voltage: 1.2V−1.8V (LCD drive voltage: 3.0V, or 4.5V)• Single or Dual Clock Mode− Single (main oscillator only) or dual clock (both main and sub-oscilat...

W541L260 Data Sheet

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Part Number:: W541L260
Supply Ability:: 5000

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Upload time: 2024/11/20

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Product Details

Description

Features:

• Operating voltage: 1.2V−1.8V (LCD drive voltage: 3.0V, or 4.5V)
• Single or Dual Clock Mode
− Single (main oscillator only) or dual clock (both main and sub-oscilator) by mask option .
− 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 1 MHz) or low-frequency clock (32.768 KHz) is selected by mask code option
• Memory
− 2048 * 16 bit program ROM (including 2K * 4 bit look-up table)
− 128 * 4 bit data RAM (including 16 working registers)
− 32 * 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 to drive LEDs)
− MFP output pin: 1 pin (MFP)
− Do not be floating when it is as input or output open-drain (NMOS type).
• Power-down mode
− Hold function: no operation (except for oscillator)
− Stop function: no operation (including main clock)
• 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 two internal clock frequencies (FOSC or FOSC/64) 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: 115 instructions
• 8-level subroutine (include interrupt) nesting
• Up to 4 S instruction cycle (with 1 MHz operating frequency)
• Packaged in 80-pin QFP

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

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

Description

W541L260 is fully compatible with W741L260 in the terms of pin assignment and IC functon except main oscillator. It is a high-performance 4-bit microcontroller (C) with an LCD driver. The device contains a 4-bit ALU, two 8-bit timers, two dividers, a 32 * 4 LCD driver, and five 4-bit I/O ports (including 1 output port to drive the LEDs). There are also five interrupt sources and 8-level subroutine nesting for interrupt applications. The W541L260 has one power reduction mode to help minimize power dissipation.

The W541L260 has two oscillator circuits and can work in dual-clock or single-clock operation mode. It is suitable for remote controllers, watches and clocks, speech synthesis LSI controllers, and other products.

W541L260

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