W79E822B Selling Leads, Price trend, W79E822B DataSheet download, circuit diagram from SeekIC.com

Features: • Fully static design 8-bit Turbo 51 CMOS microcontroller up to 20MHz when VDD=4.5V to 5.5V,12MHz when VDD=2.7V to 5.5V• 16K/8K/4K/2K bytes of AP Flash EPROM, with ICP and external writer programmable mode.• 256/128 bytes of on-chip RAM.• 256/128 bytes NVM Data Fl...

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SeekIC No. : 004545052 Detail

W79E822B: Features: • Fully static design 8-bit Turbo 51 CMOS microcontroller up to 20MHz when VDD=4.5V to 5.5V,12MHz when VDD=2.7V to 5.5V• 16K/8K/4K/2K bytes of AP Flash EPROM, with ICP and exte...

W79E822B Data Sheet

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Part Number:: W79E822B
Supply Ability:: 5000

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Qty
1~5000

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Negotiable

Processing time
15 Days

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Upload time: 2024/12/21

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Product Details

Description

Features:

• Fully static design 8-bit Turbo 51 CMOS microcontroller up to 20MHz when V_DD=4.5V to 5.5V,12MHz when V_DD=2.7V to 5.5V
• 16K/8K/4K/2K bytes of AP Flash EPROM, with ICP and external writer programmable mode.
• 256/128 bytes of on-chip RAM.
• 256/128 bytes NVM Data Flash EPROM for customer data storage used and 10K writer cycles.
• Instruction-set compatible with MSC-51.
• Two 8-bit bi-directional and one 2-bit bi-directional ports.
• Two 16-bit timer/counters.
• 13 interrupts source with four levels of priority.
• One enhanced full duplex serial port with framing error detection and automatic address recognition.
• The 4 outputs mode and TTL/Schmitt trigger selectable Port.
• Programmable Watchdog Timer.
• Four-channel 10-bit PWM (Pulse Width Modulator).
• Four-channel multiplexed with 10-bits A/D convert.
• One I2C communication port (Master / Slave).
• Eight keypad interrupt inputs.
• Two analog comparators.
• Configurable on-chip oscillator.
• LED drive capability (20mA) on all port pins.
• Low Voltage Detect interrupt and reset.
• Development Tools:
- JTAG ICE(In Circuit Emulation) tool
- ICP(In Circuit Programming) writer
• Packages:
- Lead Free (RoHS) DIP 20: W79E825ADG
- Lead Free (RoHS) DIP 20: W79E825ADG
- Lead Free (RoHS) SOP 20: W79E825ASG
- Lead Free (RoHS) DIP 20: W79E824ADG
- Lead Free (RoHS) SOP 20: W79E824ASG
- Lead Free (RoHS) DIP 20: W79E823BDG
- Lead Free (RoHS) SOP 20: W79E823BSG
- Lead Free (RoHS) DIP 20: W79E822BDG
- Lead Free (RoHS) SOP 20: W79E822BSG

Pinout

Connection Diagram

Specifications

SYMBOL	PARAMETER	MIN	MAX	UNIT
DC Power Supply	VDD−VSS	-0.3	+7.0	V
Input Voltage	VIN	VSS-0.3	VDD+0.3	V
Operating Temperature	TA	-40	+85
Storage Temperature	Tst	-55	+150
Maximum Current into V_DD		-	120	mA
Maximum Current out of V_SS			120	mA
Maximum Current suck by a I/O pin			25	mA
Maximum Current sourced by a I/O pin			25	mA
Maximum Current suck by total I/O pins			75	mA
Maximum Current sourced by total I/O pins			75	mA

Note: Exposure to conditions beyond those listed under absolute maximum ratings may adversely affects the lift and reliability

Description

The W79E825 series are an 8-bit Turbo 51 microcontroller which has an in-system programmable Flash EPROM which Flash EPROM can program by ICP (In Circuit Program) or by hardware writer. The instruction set of the W79E825 series are fully compatible with the standard 8052. The W79E825 series contain a 16K/8K/4K/2K bytes of main Flash EPROM; a 256/128 bytes of RAM; 256/128 bytes NVM Data Flash EPROM; two 8-bit bi-directional, one 2-bit bi-directional and bit-addressable I/O ports; two 16-bit timer/counters; 4-channel multiplexed 10-bit A/D convert; 4-channel 10-bit PWM; two serial ports that include a I2C and an enhanced full duplex serial port. These peripherals are supported by 13 sources four-level interrupt capability. To facilitate programming and verification, the Flash EPROM inside the W79E825 series allow the program memory to be programmed and read electronically. Once the code is confirmed, the user can protect the code for security.

W79E822B

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