W741E202, W741E205, W741E260 Selling Leads, Datasheet
MFG:Winbond Package Cooled:DIP D/C:01+
W741E202, W741E205, W741E260 Datasheet download
Part Number: W741E202
MFG: Winbond
Package Cooled: DIP
D/C: 01+
W741E202, W741E205, W741E260
- Table of contents:
Info of W741E202
Info of W741E205
Info of W741E260
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About W741E202
PDF/DataSheet Download
Datasheet: W741E202
File Size: 554669 KB
Manufacturer: WINBOND [Winbond]
Download : Click here to Download
About W741E205
PDF/DataSheet Download
Datasheet: W741E205
File Size: 554669 KB
Manufacturer: WINBOND [Winbond]
Download : Click here to Download
About W741E260
PDF/DataSheet Download
Datasheet: W741E260
File Size: 567544 KB
Manufacturer: WINBOND [Winbond]
Download : Click here to Download
W741E260 General Description
The W741E260 is a high-performance 4-bit microcontroller (C) 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 8-level subroutine nesting for interrupt applications. The W741E260 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 W741C250 and W741C260 bodies, which can be selected by option code. The W741E260 is suitable for end product manufacturer engineering testing and earlier samples before mass production.
W741E260 Maximum Ratings
| 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 |
W741E260 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
− 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
should be selected by code option
− In RC mode, attention must be paid to the high/low frequency oscillation option, because the LCD
driver frequency and the ROM code emulation time are related to this option.
• Sub-oscillator
− Connect to 32768 Hz crystal only
− Used in dual-clock operation
• Memory
− 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
• 21 input/output pins
− 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
− MFP output pin: 1 pin (MFP)
• Power-down mode
− Hold function: no operation (excluding main oscillator and sub-oscillator)
− Stop function: no operation (excluding sub-oscillator)
• Crystal/Ceramic oscillator: up to 4 MHz
• RC oscillator: up to 4 MHz
• Dual-clock operation is selected by code option
• Main oscillator
− 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
should be selected by code option
− In RC mode, attention must be paid to the high/low frequency oscillation option, because the LCD
driver frequency and the ROM code emulation time are related to this option.
• Sub-oscillator
− Connect to 32768 Hz crystal only
− Used in dual-clock operation
• Memory
− 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
• 21 input/output pins
− 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
− MFP output pin: 1 pin (MFP)
• Power-down mode
− Hold function: no operation (excluding main oscillator and sub-oscillator)
− Stop function: no operation (excluding sub-oscillator)
W741E260 Connection Diagram
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