W541E200 WINBOND [Winbond], W541E200 Datasheet

W541E200

Manufacturer Part Number

W541E200

Description

4 BIT FLASH EPROM MICROCONTROLLER

Manufacturer

WINBOND [Winbond]

Datasheet

1.W541E200.pdf (14 pages)

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GENERAL DESCRIPTION

The W541E20X is fully compatible with W741E20X in terms of pin assignment and IC function. It is a

high-performance 4-bit microcontroller (µC) that provides an flash EEPROM for the program memory.

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 port for LED driving). There are also seven interrupt sources and 8-level subroutine

nesting for interrupt applications. The W541E20X has two power reduction modes, hold mode and

stop mode, which help to minimize power dissipation.

The W541E20X is suitable for end product manufacturer engineering testing and earlier samples

before mass production.

FEATURES

•

Both in crystal or RC oscillator operation mode, high-frequency (400 KHz to 4 MHz) or low-frequency

(32.768 KHz) oscillation must be determined by the code option

− Crystal/Ceramic oscillator: up to 4 MHz

− RC oscillator: up to 4 MHz

Operating voltage: 2.4V−5.5V

Crystal or RC oscillation circuit can be selected by the code option

Memory

− 2048 × 16 bit program flash EEPROM (including 2K × 4 bit look-up table)

− 128 × 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)

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

Two built-in 8-bit programmable countdown timers

− Timer 0: One of two internal clock frequencies (F

MFP output pin: 1 pin (MFP)

Do not be floating when it is as input or output open-drain (NMOS type).

4-BIT FLASH EPROM MICROCONTROLLER

- 1 -

PRELIMINARY W541E20X

OSC

/4 or F

OSC

/1024) can be selected

Publication Release Date: June 2003

Revision A2

Related parts for W541E200

W541E200 Summary of contents

Page 1

FLASH EPROM MICROCONTROLLER GENERAL DESCRIPTION The W541E20X is fully compatible with W741E20X in terms of pin assignment and IC function high-performance 4-bit microcontroller (µC) that provides an flash EEPROM for the program memory. The device contains ...

Page 2

Timer 1: Offers auto-reload function and one of two internal clock frequencies (F 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 • ...

Page 3

BLOCK DIAGRAM RAM (128*4) Flash VPP (RES) EEPROM DATA (RA3) (2048*16) (look_up table MODE (INT) 2K*4) +1(+2) PC STACK (8 Levels) Timer 0 (8-bit) Watchdog Timer (4-bit) Preliminary W541E20X PORT RA ACC PORT RB ALU PORT RC Central Control PORT ...

Page 4

PIN CONFIGURATIONS W541E201 RA2 1 (DATA) RA3 2 (MODE) /INT 3 (Vpp) /RES 4 VSS 5 RB0 6 RB1 7 RB2 8 RB3 9 18-PDIP (300 mil) W541E203 RA2 1 (DATA) RA3 2 (MODE) /INT 3 (Vpp) /RES 4 VSS ...

Page 5

PIN DESCRIPTION SYMBOL I/O XIN I Input pin for oscillator. Connected to crystal or resistor to generate system clock by code option. External 10~20pF capacitor uses to get accurate freq in crystal mode. XOUT O Output pin for oscillator. Connected ...

Page 6

ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage to Ground Potential Applied Input/Output Voltage Power Dissipation Ambient Operating Temperature Storage Temperature Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device. ...

Page 7

AC CHARACTERISTICS (VDD-VSS = 3 25° C; unless otherwise specified) PARAMETER Op. Frequency Frequency Deviation by Voltage Drop for low freq. RC Oscillator Instruction Cycle Time Serial Port Data Ready Time Serial Port Data Hold Time Reset ...

Page 8

TYPICAL APPLICATION CIRCUIT Output Signal Vcc Vcc or Preliminary W541E20X Vcc V DD RA0 RA3 Vcc RB0 RB1 RB2 RB3 RD0 RC0 RD1 RC1 RD2 RC2 RC3 RD3 INT RE0 RES RE1 RE2 XOUT RE3 MFP XIN ...

Page 9

PACKAGE DIAMENSIONS 18-Lead PDIP (300 mil Preliminary W541E20X Base Plane Seating Plane Dimension in inch Dimension in mm Symbol Min. Nom. ...

Page 10

Package Dimensions, continued 20-Lead PDIP Preliminary W541E20X Base Plane Seating Plane Dimension in inch Dimension in mm Symbol Min. Nom. Max. ...

Page 11

Package Dimensions, continued 28-Lead PDIP Skinny Symbol Preliminary W541E20X Base Plane A 1 Mounting Plane Dimension in Inches Dimension in mm Nom. Nom. ...

Page 12

Package Dimensions, continued 20-Lead SOP (300mil SEATING PLANE Control demensions are in milmeters. Symbol θ Preliminary W541E20X ...

Page 13

Package Dimensions, continued 28-Lead SOP (300 mil SEATING PLANE Control demensions are in milmeters . Symbol Preliminary W541E20X Dimension in mm Dimension in Inches Min. Max. Min. Max. 0.093 0.104 2.35 2.65 A 0.10 ...

Page 14

Notes: Headquarters No. 4, Creation Rd. III, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5770066 FAX: 886-3-5792766 http://www.winbond.com.tw/ Voice & Fax-on-demand: 886-2-27197006 Taipei Office 11F, No. 115, Sec. 3, Min-Sheng East Rd., Taipei, Taiwan TEL: 886-2-27190505 FAX: 886-2-27197502 Note: All data ...

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