| PartNumber | Z51F0811RFX | Z51F0811RJX | Z51F0811RHX |
| Description | 8-bit Microcontrollers - MCU Ser Core Fl MCU, 8KB Fl, 512 bytes RAM | 8-bit Microcontrollers - MCU Ser Core Fl MCU, 8KB Fl, 512 bytes RAM | 8-bit Microcontrollers - MCU Ser Core Fl MCU, 8KB Fl, 512 bytes RAM |
| Manufacturer | ZiLOG | ZiLOG | ZiLOG |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TSSOP-16 | TSSOP-28 | TSSOP-20 |
| Series | Z51F0811 | Z51F0811 | Z51F0811 |
| Core | Z8051 | Z8051 | Z8051 |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 128 MHz | 128 MHz | 128 MHz |
| Program Memory Size | 8 kB | 8 kB | 8 kB |
| Data RAM Size | 256 B | 256 B | 256 B |
| Operating Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tube | Tube | Tube |
| Brand | ZiLOG | ZiLOG | ZiLOG |
| Processor Series | Z51F0811 | Z51F0811 | Z51F0811 |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 658 | 550 | 630 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Unit Weight | 0.006102 oz | 0.014215 oz | 0.006737 oz |