| Part Number | DS2250T-64-16+ | DS2252T-64-16# | 
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | 
| Category | Embedded - Microcontrollers | Embedded - Microcontrollers | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Core Processor | 8051 | 8051 | 
| Core Size | 8-Bit | 8-Bit | 
| Speed | 16MHz | 16MHz | 
| Connectivity | SIO, UART/USART | SIO, UART/USART | 
| Peripherals | Power-Fail Reset, WDT | Power-Fail Reset, WDT | 
| Number of I/O | 32 | 32 | 
| Program Memory Size | 64KB (64K x 8) | 64KB (64K x 8) | 
| Program Memory Type | NVSRAM | NVSRAM | 
| EEPROM Size | - | - | 
| RAM Size | - | - | 
| Voltage - Supply (Vcc/Vdd) | 4.75V ~ 5.25V | 4.5V ~ 5.5V | 
| Data Converters | - | - | 
| Oscillator Type | External | External | 
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 40-SIMM | 40-SIMM | 
| Supplier Device Package | 40-SIMM | 40-SIMM |