| PartNumber | SST89C58RC-40-C-QIF | SST89C58RC-40-I-TQJE |
| Description | 8-bit Microcontrollers - MCU 34K (32Kx8K) SM-Bus 40MHz 2.7-5.5V | 8-bit Microcontrollers - MCU 40K (32Kx8K) SM-Bus 40MHz 2.7-5.5V |
| Manufacturer | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT |
| Package / Case | WQFN-40 | TQFP-44 |
| Series | SST89C58 | SST89C58 |
| Core | 8051 | 8051 |
| Data Bus Width | 8 bit | 8 bit |
| Maximum Clock Frequency | 40 MHz | 40 MHz |
| Program Memory Size | 34 kB | 34 kB |
| Data RAM Size | 1 kB | 1 kB |
| Number of I/Os | 32 I/O | 32 I/O |
| Minimum Operating Temperature | 0 C | - 40 C |
| Maximum Operating Temperature | + 70 C | + 85 C |
| Packaging | Tube | Tray |
| Height | 0.75 mm | 1.05 (Max) mm |
| Length | 6 mm | 10 (Max) mm |
| Program Memory Type | Flash | Flash |
| Width | 6 mm | 10 (Max) mm |
| Brand | Microchip Technology | Microchip Technology |
| Interface Type | UART | UART |
| Moisture Sensitive | Yes | Yes |
| Number of Timers/Counters | 3 Timer | 3 Timer |
| Processor Series | SST89C | SST89C |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 81 | 160 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 5.5 V | 5.5 V |
| Supply Voltage Min | 2.7 V | 2.7 V |
| Unit Weight | 0.001929 oz | - |
| Operating Supply Voltage | - | 2.7 V to 5.5 V |