Microcontrollers
Explore Microcontrollers parts from multiple manufacturers, with model information, availability, datasheets and technical specifications for engineering and purchasing.
For parts that are not shown in the list, send the manufacturer part number, quantity or BOM to JIEXIN Electronics. Our team can assist with availability checks and quotation support.
| Photo | Mfr. Part # | Availability | Quantity | Datasheet | Package/Case | Series | Packaging | Product Status | Programmable | Core Processor | Core Size | Speed | Connectivity | Peripherals | Number of I/O | Program Memory Size | Program Memory Type | EEPROM Size | RAM Size | Voltage - Supply (Vcc/Vdd) | Data Converters | Oscillator Type | Operating Temperature | Grade | Qualification | Mounting Type | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
W77C032A40PLIC MCU 8BIT ROMLESS 44PLCC |
2,689 |
|
Datasheet | 44-LCC (J-Lead) | W77 | Tube | Active | Not Verified | 8051 | 8-Bit | 40MHz | EBI/EMI, Serial Port | POR, WDT | 36 | - | ROMless | - | 1K x 8 | 4.5V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Surface Mount | |
|
W77E058A40DLIC MCU 8BIT 32KB FLASH 40DIP |
2,784 |
|
Datasheet | 40-DIP | W77 | Tube | Obsolete | Not Verified | 8051 | 8-Bit | 40MHz | EBI/EMI, Serial Port | POR, WDT | 32 | 32KB (32K x 8) | FLASH | - | 1K x 8 | 4.5V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Through Hole | |
|
W77E058A40FLIC MCU 8BIT 32KB FLASH 44QFP |
4,855 |
|
Datasheet | 44-BQFP | W77 | Tray | Active | Not Verified | 8051 | 8-Bit | 40MHz | EBI/EMI, Serial Port | POR, WDT | 36 | 32KB (32K x 8) | FLASH | - | 1K x 8 | 4.5V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Surface Mount | |
|
|
W77E516A40DLIC MCU 8BIT 64KB FLASH 40DIP |
2,925 |
|
Datasheet | 40-DIP | W77 | Tube | Obsolete | Not Verified | 8051 | 8-Bit | 40MHz | EBI/EMI, Serial Port | POR, WDT | 32 | 64KB (64K x 8) | FLASH | - | 1K x 8 | 4.5V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Through Hole | |
|
|
W77E532A40DLIC MCU 8BIT 128KB FLASH 40DIP |
3,060 |
|
Datasheet | 40-DIP | W77 | Tube | Obsolete | Not Verified | 8051 | 8-Bit | 40MHz | EBI/EMI, Serial Port | POR, WDT | 32 | 128KB (128K x 8) | FLASH | - | 1K x 8 | 4.5V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Through Hole | |
|
|
W77E532A40PLIC MCU 8BIT 128KB FLASH 44PLCC |
1,524 |
|
Datasheet | 44-LCC (J-Lead) | W77 | Tube | Last Time Buy | Not Verified | 8051 | 8-Bit | 40MHz | EBI/EMI, Serial Port | POR, WDT | 36 | 128KB (128K x 8) | FLASH | - | 1K x 8 | 4.5V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Surface Mount | |
|
|
W77I058A25DLIC MCU 8BIT 32KB FLASH 40DIP |
1,443 |
|
Datasheet | 40-DIP | W77 | Tube | Obsolete | Not Verified | 8051 | 8-Bit | 25MHz | EBI/EMI, Serial Port | POR, WDT | 32 | 32KB (32K x 8) | FLASH | - | 1K x 8 | 2.7V ~ 5.5V | - | Internal | -40°C ~ 85°C (TA) | - | - | Through Hole | |
|
|
W77L058A25DLIC MCU 8BIT 32KB FLASH 40DIP |
1,642 |
|
Datasheet | 40-DIP | W77 | Tube | Obsolete | Not Verified | 8051 | 8-Bit | 25MHz | EBI/EMI, Serial Port | POR, WDT | 32 | 32KB (32K x 8) | FLASH | - | 1K x 8 | 2.7V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Through Hole | |
|
|
W77L058A25FLIC MCU 8BIT 32KB FLASH 44QFP |
2,882 |
|
Datasheet | 44-BQFP | W77 | Tray | Active | Not Verified | 8051 | 8-Bit | 25MHz | EBI/EMI, Serial Port | POR, WDT | 36 | 32KB (32K x 8) | FLASH | - | 1K x 8 | 2.7V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Surface Mount | |
|
|
W77L058A25PLIC MCU 8BIT 32KB FLASH 44PLCC |
4,482 |
|
Datasheet | 44-LCC (J-Lead) | W77 | Tube | Active | Not Verified | 8051 | 8-Bit | 25MHz | EBI/EMI, Serial Port | POR, WDT | 36 | 32KB (32K x 8) | FLASH | - | 1K x 8 | 2.7V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Surface Mount | |
|
|
W77L516A25DLIC MCU 8BIT 64KB FLASH 40DIP |
4,767 |
|
Datasheet | 40-DIP | W77 | Tube | Obsolete | Not Verified | 8051 | 8-Bit | 25MHz | EBI/EMI, Serial Port | POR, WDT | 32 | 64KB (64K x 8) | FLASH | - | 1K x 8 | 2.7V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Through Hole | |
|
|
W77L516A25FLIC MCU 8BIT 64KB FLASH 44QFP |
1,390 |
|
Datasheet | 44-BQFP | W77 | Tray | Last Time Buy | Not Verified | 8051 | 8-Bit | 25MHz | EBI/EMI, Serial Port | POR, WDT | 36 | 64KB (64K x 8) | FLASH | - | 1K x 8 | 2.7V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Surface Mount | |
|
|
W77L532A25PLIC MCU 8BIT 128KB FLASH 44PLCC |
3,648 |
|
Datasheet | 44-LCC (J-Lead) | W77 | Tube | Last Time Buy | Not Verified | 8051 | 8-Bit | 25MHz | EBI/EMI, Serial Port | POR, WDT | 36 | 128KB (128K x 8) | FLASH | - | 1K x 8 | 2.7V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Surface Mount | |
|
|
W78C032C40DLIC MCU 8BIT ROMLESS 40DIP |
1,070 |
|
Datasheet | 40-DIP | W78 | Tube | Obsolete | Not Verified | 8051 | 8-Bit | 40MHz | EBI/EMI, Serial Port | - | 32 | - | ROMless | - | 256 x 8 | 4.5V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Through Hole | |
|
|
W78C438C40PLIC MCU 8BIT ROMLESS 84PLCC |
1,409 |
|
Datasheet | 84-LCC | W78 | Tube | Obsolete | Not Verified | 8051 | 8-Bit | 40MHz | EBI/EMI, Serial Port | - | 40 | - | ROMless | - | 256 x 8 | 4.5V ~ 5.5V | - | External | 0°C ~ 70°C (TA) | - | - | Surface Mount | |
|
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W78E054B40DLIC MCU 8BIT 16KB FLASH 40DIP |
2,833 |
|
Datasheet | 40-DIP | W78 | Tube | Obsolete | Not Verified | 8051 | 8-Bit | 40MHz | EBI/EMI, UART/USART | POR, WDT | 32 | 16KB (16K x 8) | FLASH | - | 256 x 8 | 4.5V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Through Hole | |
|
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W78E054B40FLIC MCU 8BIT 16KB FLASH 44QFP |
4,939 |
|
Datasheet | 44-BQFP | W78 | Tray | Obsolete | Not Verified | 8051 | 8-Bit | 40MHz | EBI/EMI, UART/USART | POR, WDT | 36 | 16KB (16K x 8) | FLASH | - | 256 x 8 | 4.5V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Surface Mount | |
|
|
W78E054B40PLIC MCU 8BIT 16KB FLASH 44PLCC |
3,196 |
|
Datasheet | 44-LCC (J-Lead) | W78 | Tube | Obsolete | Not Verified | 8051 | 8-Bit | 40MHz | EBI/EMI, UART/USART | POR, WDT | 36 | 16KB (16K x 8) | FLASH | - | 256 x 8 | 4.5V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Surface Mount | |
|
|
W78E054C40DLIC MCU 8BIT 16KB FLASH 40DIP |
4,166 |
|
Datasheet | 40-DIP | W78 | Tube | Obsolete | Not Verified | 8051 | 8-Bit | 40MHz | EBI/EMI, UART/USART | POR, WDT | 32 | 16KB (16K x 8) | FLASH | - | 256 x 8 | 4.5V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Through Hole | |
|
|
W78E054C40FLIC MCU 8BIT 16KB FLASH 44QFP |
2,242 |
|
Datasheet | 44-BQFP | W78 | Tray | Obsolete | Not Verified | 8051 | 8-Bit | 40MHz | EBI/EMI, UART/USART | POR, WDT | 36 | 16KB (16K x 8) | FLASH | - | 256 x 8 | 4.5V ~ 5.5V | - | Internal | 0°C ~ 70°C (TA) | - | - | Surface Mount |
Frequently Asked Questions
What are Microcontrollers components used for?
Microcontrollers components are used in a wide range of electronic equipment and systems. Their exact function depends on the device, circuit design and technical requirements of the application.
How do I choose the right Microcontrollers part?
Compare the manufacturer part number, key specifications, package type, operating conditions, availability and datasheet information. For replacement projects, always verify the critical electrical and mechanical parameters before selecting an alternative.
Can JIEXIN Electronics help source obsolete or hard-to-find Microcontrollers parts?
Yes. Send us the required manufacturer part number, quantity or BOM. Our sourcing team can help check stock availability, lead time, alternative sourcing options and quotation details.
How can I request pricing and availability?
Submit the part number, manufacturer and required quantity through our RFQ form. JIEXIN Electronics will review your request and provide available stock, pricing and sourcing information.
