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W79E834, W79E834ADG, W79E834AED

Table of contents:
Info of W79E834
Info of W79E834ADG
Info of W79E834AED

W79E834, W79E834ADG, W79E834AED Selling Leads, Datasheet

MFG:HS D/C:2007

W79E834, W79E834ADG, W79E834AED Datasheet download

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Part Number: W79E834

MFG: HS

Package Cooled:

D/C: 2007

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W79E834 General Description

W79E834 is an 8-bit Turbo 51 microcontroller which has Flash EPROM which Flash EPROM can program by ICP (In Circuit Program) or by writer. The instruction sets of the W79E834 are fully compatible with the standard 8052. W79E834 contains a 8K bytes of main Flash EPROM; a 256 bytes of RAM; 256 bytes AUX-RAM; three 8-bit bi-directional, one 2-bit bi-directional and bit-addressable I/O ports; two 16-bit timer/counters; 8-channel multiplexed 10-bit A/D converter; 4-channel 10-bit PWM; one timer with input capture units; two serial ports that include a SPI 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 W79E834 allow the program memory to be programmed and read electronically. Once the code is confirmed, the user can protect the code for security.

W79E834 Maximum Ratings

SYMBOL	PARAMETER	CONDITION	RATING	UNITS
DC Power Supply	V_DD−V_SS	-0.3	+7.0	V
Input Voltage	V_IN	V_SS-0.3	V_DD+0.3	V
Operating Temperature	T_A	-40	+85
Storage Temperature	T_st	-55	+150

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

W79E834 Features

• Fully static design 8-bit Turbo 51 CMOS microcontroller up to 16MHz when VDD=4.5V to 5.5V, 12MHz
   when VDD=2.7V to 5.5V
• 8K bytes of Flash EPROM (AP Flash EPROM), with ICP and External Writer programmable mode
• 256 bytes of on-chip RAM
• 256 bytes of on-chip AUX-RAM
• Instruction-set compatible with MSC-51
• Three 8-bit bi-directional and one 2-bit bi-directional port
• Two 16-bit timer/counters
• One Timer with three input captures capability
• 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)
• Eight-channel multiplexed with 10-bits A/D converter
• One SPI with master/slave capability
• Eight keypad interrupt inputs
• Configurable on-chip oscillator
• Built-in power management
• LED drive capability (20mA) on all port pins
• Low Voltage Detect interrupt and reset
• Code protection
• Packages:
   - Lead Free (RoHS) SOP 28: W79E834ASG
   - Lead Free (RoHS) LQFP 48: W79E834ALG

W79E834 Connection Diagram

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