Part Number: W79E4051RASG vs W79E821ADG
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| Part Number: | W79E4051RASG | W79E821ADG |
| Manufacturer: | Nuvoton Technology Corporation of America | Nuvoton Technology Corporation of America |
| Description: | IC MCU 8BIT 4KB FLASH 20SOP | IC MCU 8BIT 1KB FLASH 20DIP |
| Quantity Available: | Available | Available |
| Datasheets: | - | W79E825,24,23A,22A,21A |
| Factory Lead Time | 8 Weeks | - |
| Mounting Type | Surface Mount | Through Hole |
| Package / Case | 20-SOIC (0.295, 7.50mm Width) | 20-DIP (0.300, 7.62mm) |
| Operating Temperature | -40°C~85°C TA | -40°C~85°C TA |
| Packaging | Tube | Tube |
| Series | W79 | W79 |
| Published | 2013 | 2006 |
| Part Status | Active | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Frequency | 24MHz | 20MHz |
| Interface | UART, USART | I2C, UART, USART |
| Memory Size | 4kB | 1kB |
| Oscillator Type | Internal | Internal |
| Number of I/O | 17 | 18 |
| RAM Size | 256 x 8 | 128 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.4V~5.5V | 2.7V~5.5V |
| Core Processor | 8051 | 8051 |
| Peripherals | Brown-out Detect/Reset, LED, LVD, POR, PWM, WDT | Brown-out Detect/Reset, LED, LVD, POR, PWM, WDT |
| Program Memory Type | FLASH | FLASH |
| Core Size | 8-Bit | 8-Bit |
| Program Memory Size | 4KB 4K x 8 | 1KB 1K x 8 |
| Connectivity | UART/USART | I2C, UART/USART |
| EEPROM Size | 128 x 8 | - |
| RoHS Status | ROHS3 Compliant | RoHS Compliant |
| Surface Mount | - | NO |
| Number of Terminations | - | 20 |
| Subcategory | - | Microcontrollers |
| Technology | - | CMOS |
| Terminal Position | - | DUAL |
| Terminal Pitch | - | 2.54mm |
| Pin Count | - | 20 |
| JESD-30 Code | - | R-PDIP-T20 |
| Qualification Status | - | Not Qualified |
| Power Supplies | - | 3/5V |
| Supply Current-Max | - | 25mA |
| Bit Size | - | 8 |
| Data Converter | - | A/D 4x10b |
| ROM (words) | - | 1024 |
| RAM (bytes) | - | 128 |
| Submit RFQ: | Submit | Submit |
| Image | Part Number | Manufacturer | Description | Compare |
|---|---|---|---|---|
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W79E8213RARG | NUVOTON | Compare | |
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W79E823BSG | Winbond | Compare | |
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W79E8213RASG | NUVOTON | original in stock | Compare |
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W79E8213RASG | NUVOTON | original in stock | Compare |
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W79E824ASG | Nuvoton Technology Corporation of America | IC MCU 8BIT 8KB FLASH 20SOIC | Compare |
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W79E823ADG | Nuvoton Technology Corporation of America | IC MCU 8BIT 4KB FLASH 20DIP | Compare |
