| PartNumber | Z8F0423SH005EG2156 | Z8F0423SH005EC | Z8F0423SH005EG |
| Description | 8-bit Microcontrollers - MCU 4K FLASH 1K RAM 7-CH 10-BIT ADC | 8-bit Microcontrollers - MCU 4K Flash 4K Series w/ 1K RAM XTEMP | 8-bit Microcontrollers - MCU 4K Flash 4K Series w/ 1K RAM XTEMP |
| Manufacturer | ZiLOG | ZiLOG | ZiLOG |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | N | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOIC-20 | SOIC-20 | SOIC-20 |
| Series | Z8F042 | Z8F042 | Z8F042 |
| Core | eZ8 | eZ8 | eZ8 |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Program Memory Size | 4 kB | 4 kB | 4 kB |
| Operating Supply Voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 105 C | + 105 C | + 105 C |
| Packaging | Tube | Tube | Tube |
| Program Memory Type | Flash | Flash | Flash |
| Brand | ZiLOG | ZiLOG | ZiLOG |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 494 | 38 | 38 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Unit Weight | 0.028254 oz | 0.028254 oz | 0.028254 oz |
| Maximum Clock Frequency | - | 5 MHz | 5 MHz |
| Data RAM Size | - | 1 kB | 1 kB |
| ADC Resolution | - | 10 bit | 10 bit |
| Number of I/Os | - | 16 I/O | 16 I/O |
| Height | - | 2.44 mm | 2.44 mm |
| Length | - | 12.95 mm | 12.95 mm |
| Width | - | 7.6 mm | 7.6 mm |
| Data ROM Type | - | Flash | Flash |
| Interface Type | - | UART | UART |
| Number of ADC Channels | - | 7 | 7 |
| Number of Timers/Counters | - | 2 Timer | 2 Timer |
| Processor Series | - | Z8F042xx | Z8F042xx |
| Supply Voltage Max | - | 3.6 V | 3.6 V |
| Supply Voltage Min | - | 2.7 V | 2.7 V |