80C51 LPC Microcontroller
| Part No. |
W79E2051A/W79E2051RA/W79E4051A/W79E4051RA |
| Datasheet |
 W79E4051_W79E2051.pdf |
| Description |
The W79E4051/2051 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) Writer. The instruction set of the W79E4051/2051 series are fully compatible with the standard 8052. The W79E4051/2051 series contain a 4K/2K bytes of program Flash EPROM; a 256 bytes of RAM; 128 bytes data Flash EPROM for customer data storage; two 8-bit bi-directional and bit-addressable I/O ports; two 16-bit timer/counters; an enhanced full duplex serial port; 1 channel PWM by 10-bit counter, Brownout voltage detection/reset, Power on reset detection and one analog comparator. These peripherals are supported by 9 sources of four-level interrupt capability. To facilitate programming and verification, the Flash EPROM inside the W79E4051/2051 series allow the program memory to be programmed and read electronically. Once the code is confirmed, the user can protect the code for security. |
| Features |
- Fully static design 8-bit Turbo 51 CMOS microcontroller up to 24MHz
- Single power: 2.4~5.5V Up to 12MHz, 4.5~5.5V up to 24MHz
- Flexible CPU clock source configurable by config bit and software:
- High speed external oscillator: upto 24MHz Crystal and resonator (enabled by config bit).
- Internal RC oscillator: 22.1184/11.0592MHz with 2% accuracy (selectable by config bit), at 5.0 voltage and 25℃condition..
- Instruction-set compatible with MCS-51
- 4K/2K bytes of AP Flash EPROM, with ICP and external writer programmable mode.
- 256 bytes of on-chip RAM
- W79E4051/2051 supports 128 bytes NVM Data Flash EPROM for customer data storage used and 10K writer cycles.
- 8 pages. Page size is 16 bytes.
- One 8-bit bi-directional port(Port1), one 7-bit bi-directional port(Port3) and one 2-bit bi-directional port(P2.0 and P2.1 shared with XT1 and XT2 pins)
- I/O capable of driving LED max. 20mA per pin, max to 80mA for total pins.
- Two 16-bit timer/counters
- 9 Interrupt source with four levels of priority
- One enhanced full duplex serial port with framing error detection and automatic address recognition
- One channel 10-bit PWM output
- One analog Comparator
- Built-in Power Management
- Power on reset flag
- Brownout voltage detect/reset
- Operating Temperature: -40~85℃
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| Diagram |
N/A |
| Package |
|
Part No. |
EPROM
Flash Size
|
RAM |
NVM Flash EPROM |
Internal RC Oscillator Accuracy |
Package |
|
W79E4051AKG |
4KB |
256B |
|
22MHz 25% |
PDIP-20 Pin |
|
W79E4051ASG |
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SOP-20 Pin |
|
W79E2051AKG |
2KB |
256B |
128B |
22MHz 25% |
|
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W79E2051ASG |
2KB |
256B |
128B |
22MHz 25% |
|
|
W79E4051RAKG |
4KB |
256B |
128B |
22.1184MHz ± 2% |
PDIP-20 Pin |
|
W79E4051RASG |
4KB |
256B |
128B |
22.1184MHz ± 2% |
SOP-20 Pin |
|
W79E2051RAKG |
2KB |
256B |
128B |
22.1184MHz ± 2% |
PDIP-20 Pin |
|
W79E2051RASG |
2KB |
256B |
128B |
22.1184MHz ± 2% |
SOP-20 Pin | |
| Other Files |
N/A |
| Development Tools |
ICP(In Circuit Programming) writer |
| Others |
N/A |
Contact us: MicroC-8bit@nuvoton.com
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