W541E260 WINBOND [Winbond], W541E260 Datasheet

no-image

W541E260

Manufacturer Part Number
W541E260
Description
4-BIT FLASH EPROM MICROCONTROLLER
Manufacturer
WINBOND [Winbond]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
W541E260
Manufacturer:
WINBOND/华邦
Quantity:
20 000
GENERAL DESCRIPTION
The W541E260 is fully compatible with W741E260 in terms of pin assignment and IC function. It is a
high-performance 4-bit microcontroller (µC) that provides an LCD driver and the flash EEPROM for
the program memory. The device contains a 4-bit ALU, two 8-bit timers, two dividers (for two
oscillators) in dual-clock operation, a 32 × 4 LCD driver, and five 4-bit I/O ports (including 1 output port
for LED driving). There are also five interrupt sources and a 8-level subroutine nesting for interrupt
applications. The W541E260 operates on very low current and has three power reduction modes, hold
mode and stop mode in single-clock operation and the dual-clock slow operation, which help to
minimize power dissipation.
This chip is available for W541C250 and W541C260 bodies, which can be selected by option code.
The W541E260 is suitable for end product manufacturer engineering testing and earlier samples
before mass production.
FEATURES
Operating voltage: 2.4V to 5.5V (LCD drive voltage: 3.0V, or 4.5V)
Crystal/Ceramic oscillator: up to 4 MHz
RC oscillator: up to 4 MHz
Dual-clock operation is selected by code option
Main oscillator
Sub-oscillator
Memory
21 input/output pins
-
-
− Crystal or RC oscillation circuit can be selected by code option
− In crystal mode, high-frequency (400 KHz to 4 MHz) or low-frequency (32.768 KHz) oscillation
− In RC mode, attention must be paid to the high/low frequency oscillation option, because the LCD
− Connect to 32768 Hz crystal only
− Used in dual-clock operation
− 2048 x 16-bit program flash EEPROM (including 2K x 4-bit look-up table)
− 128 x 4-bit data RAM (including 16 working registers)
− 32 x 4 LCD data RAM
− Ports for input only: 2 ports/8 pins
− Input/output ports: 2 ports/8 pins
− High sink current for LED driving: 1 port/4 pins
should be selected by code option
driver frequency and the ROM code emulation time are related to this option.
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 W541E260
Publication Release Date: June 2003
Revision A2

Related parts for W541E260

W541E260 Summary of contents

Page 1

... FLASH EPROM MICROCONTROLLER GENERAL DESCRIPTION The W541E260 is fully compatible with W741E260 in terms of pin assignment and IC function high-performance 4-bit microcontroller (µC) that provides an LCD driver and the flash EEPROM for the program memory. The device contains a 4-bit ALU, two 8-bit timers, two dividers (for two oscillators) in dual-clock operation × ...

Page 2

... Powerful instruction set: 115 instructions for W541C260 body 119 instructions for W541C250 body • 8-level subroutine (include interrupt) nesting µS instruction cycle (with 4 MHz operating frequency) • • Packaged in 80-pin QFP / /1024) can be selected OSC OSC - 2 - W541E260 or OSC ...

Page 3

... PSR1 PSR2 MR0 PM0 Serial I/O Modulation Timer 1 Frequency (8-bit) Pulse Divider 0 Timing Generator (14-bit) XIN XOUT - 3 - W541E260 RA0 to 3 RB0 to 3 RC0 to 3 RD0 to 3 RE0 to 3 SEL MUX (RE0/DOUT, RE1/CLKO, RE2/DIN, RE3/CLKI) SEL MFP MUX VDD VSS RES INT Publication Release Date: June 2003 ...

Page 4

... W541E260 SEG27 40 SEG26 39 SEG25 38 SEG24 37 SEG23 ...

Page 5

... DD1, DD2 DD3 Refer to Functional Description. FUNCTION Static 1/2 Duty 1/3 Duty 1/4 Duty Used Used Used Used Not Used Used Used Used Not Used Not Used Used Used Not Used Not Used Not Used Used - 5 - W541E260 Publication Release Date: June 2003 Revision A2 ...

Page 6

... DD No load (Ext-V) OP1 In dual-clock normal operation No load (Ext-V) OP2 In dual-clock normal operation No load (Ext-V) OP3 In dual-clock slow operation and Fm is stopped Hold mode No load (Ext-V) HM1 In dual-clock normal operation - 6 - W541E260 RATING UNIT V V 120 mW ° +70 °C MIN. TYP. MAX. 2.4 - 5.5 - 0.6 2 ...

Page 7

... Hold mode No load (Ext-V) In dual-clock normal operation Hold mode No load (Ext-V) In dual-clock slow operation and Fm is stopped Stop mode No load (Ext-V) In dual-clock normal operation Stop mode No load (Ext-V) In single-clock operation - Publication Release Date: June 2003 - 7 - W541E260 µA - 500 600 µA - 4.0 6 µA - 4.0 6 µ ...

Page 8

... All Seg. ON LCD V = 0.4V OL1 0.0V LCD V = 2.4V OH1 3.0V LCD µ 0. 2. Port RC INT - RES VPP MODE DATA W541E260 MIN. TYP. MAX. UNIT 0 0 0 µ µA 0 µA 0 0 ...

Page 9

... CONDITIONS RC type Crystal type 1 (Option low OSC speed type) Crystal type 2 (Option high speed type) ∆f − f(3V) f(2.4V) f f(3V) One machine cycle 32.768 KHz OSC RAW F = 32.768 KHz IAW OSC - 9 - W541E260 MIN. TYP. MAX. UNIT - - 4000 - 32.768 - KHz 400 - 3580 % - - OSC µ ...

Page 10

... SEG31 0.1 uF RC0 DH1 RC1 RC2 DH2 RC3 V DD1 RD0 V DD2 RD1 V DD3 RD2 RD3 RES RE0 XOUT1 RE1 RE2 XIN1 RE3 XOUT2 MFP XIN2 470 W541E260 LCD PANEL (1/3 Bias 1/4 Duty) Connect to capacitor and VDD to generate LCD voltage Vcc Vcc 0.1 uF ...

Page 11

... D 14.00 0.546 0.551 0.556 13.87 14.13 E 0.792 19.87 20.00 0.782 0.787 20.13 e 0.031 0.65 0.80 0.95 0.025 0.037 H 0.728 0.752 0.740 18.49 18.80 19. 0.964 0.976 0.988 24.49 24.80 25. 0.047 0.055 1.40 0.039 1.00 1.20 L 0.094 0.103 2.21 2.40 2.62 0.087 1 y 0.004 0. W541E260 Detail F Publication Release Date: June 2003 Revision A2 ...

Related keywords