8-bit microcontroller featuring an 8051 CPU core operating at up to 25MHz. This CMOS device offers 64KB of FLASH memory and 1KB of RAM, with an access time of 25µs. It includes a UART, USART, and EBI/EMI interface, along with 3 timers/counters and 32 I/Os. Packaged in a 44-pin PLCC for surface mounting, it operates from a 4.5V to 5.5V supply and has an operating temperature range of -40°C to 85°C.
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Maxim DS89C450-QNG technical specifications.
| Access Time | 25us |
| Package/Case | PLCC |
| Core Architecture | 8051 |
| Data Bus Width | 8b |
| Height | 3.96mm |
| Interface | UART, USART, EBI/EMI |
| Lead Free | Contains Lead |
| Length | 16.66mm |
| Max Frequency | 25MHz |
| Max Operating Temperature | 85°C |
| Min Operating Temperature | -40°C |
| Max Supply Voltage | 5.5V |
| Memory Size | 64KB |
| Memory Type | FLASH, |
| Min Supply Voltage | 4.5V |
| Mount | Surface Mount |
| Number of I/Os | 32 |
| Number of Programmable I/O | 4 |
| Number of Timers/Counters | 3 |
| Number of UART Channels | 1 |
| Oscillator Type | External |
| Packaging | Rail/Tube |
| Peripherals | WDT |
| Radiation Hardening | No |
| RAM Size | 1KB |
| RoHS Compliant | No |
| Series | 89C |
| Width | 16.66mm |
| RoHS | Not CompliantNo |
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