W541C20X PDF даташит
Спецификация W541C20X изготовлена «Winbond» и имеет функцию, называемую «(W541C20X) 4BIT MICROCONTROLLER». |
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Детали детали
Номер произв | W541C20X |
Описание | (W541C20X) 4BIT MICROCONTROLLER |
Производители | Winbond |
логотип |
15 Pages
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W541C20X Data Sheet
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Table of Contents-
4-BIT MICROCONTROLLER
1. GENERAL DESCRIPTION..........................................................................................................................2
2. FEATURES ....................................................................................................................................................2
3. BLOCK DIAGRAM ........................................................................................................................................4
4. PIN CONFIGURATIONS .............................................................................................................................5
5. PIN DESCRIPTION ......................................................................................................................................6
6. ELECTRICAL CHARACTERISTICS ..........................................................................................................7
6.1 Absolute Maximum Ratings.............................................................................................................7
6.2 DC Characteristics ............................................................................................................................7
6.3 AC Characteristics ............................................................................................................................8
7. APPLICATION CIRCUIT..............................................................................................................................9
8. PACKAGE DIMENSIONS..........................................................................................................................10
8.1 18-Lead PDIP-300mil .....................................................................................................................10
8.2 20-Lead PDIP ..................................................................................................................................11
8.3 28-Lead P-DIP Skinny....................................................................................................................12
8.4 20-Lead SOP-300mil ......................................................................................................................13
8.5 28-Lead SOP-300mil ......................................................................................................................14
9. REVISION HISTORY .................................................................................................................................15
Publication Release Date: May 29, 2003
- 1 - Revision A4
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W541C20X
1. GENERAL DESCRIPTION
The W541C20X is fully compatible with W741C20X in the terms of pin assignment and IC functon. It is
a high-performance 4-bit microcontroller (µC) that operates on very low current. The device contains a
4-bit ALU, two 8-bit timers, a divider, a serial port, and five 4-bit I/O ports (including 3 output ports for
LED driving). There are also seven interrupt sources and 8-level subroutine nesting for interrupt
applications. The W541C20X has two power reduction modes, hold mode and stop mode, which help
to minimize power dissipation.
The W541C20X is suitable for remote controllers, toy controllers, keyboard controllers, speech
synthesis LSI controllers, and other products.
2. FEATURES
• Operating voltage: 2.4V to 5.5V
• Single system clock
− Oscillation frequency up to 4 MHz , Crystal or RC oscillator is selected by mask code option
− High-frequency (400 KHz to 4 MHz) or low-frequency (32.768 KHz) oscillation is delected by mask
code option
• Memory
−2048 x 16 bit program ROM (including 2K x 4 bit look-up table)
−128 x 4 bit data RAM (including 16 working registers)
• 21 input/output pins
−Input/output ports: 4 ports/16 pins
− Serial input/output port: 1 port /4 pins (high sink current for LED driving)
− 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 oscillator)
• Seven types of interrupts
−Five internal interrupts (Divider 0, Timer 0, Timer 1, and Serial I/O)
−Two external interrupts (Port RC and INT pin)
• MFP output pin
−Output is software selectable as modulating or nonmodulating frequency
−Works as frequency output specified by Timer 1
• Built-in 14-bit clock frequency divider circuit
-2-
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W541C20X
• 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: Offers 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: 118 instructions
• 8-level subroutine (include interrupt) nesting
• One serial transmission/receiver port specified by software
• Up to 1 µS instruction cycle (with 4 MHz operating frequency)
• Packaged in 18-pin, 20-pin, 28-pin PDIP and 20-pin, 28-pin SOP
Publication Release Date: May 29, 2003
- 3 - Revision A4
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Номер в каталоге | Описание | Производители |
W541C20X | (W541C20X) 4BIT MICROCONTROLLER | Winbond |
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