Microcontroller, 8-Bit, 8051 CPU, 8MHz, CMOS,
| Parameter Name | Attribute value |
| Maker | DALLAS |
| Reach Compliance Code | unknown |
| Has ADC | NO |
| Other features | OPTIONAL PERMANENTLY POWERED REAL-TIME CLOCK; 10 YEAR DATA RETENTION |
| Address bus width | 16 |
| bit size | 8 |
| boundary scan | NO |
| CPU series | 8051 |
| maximum clock frequency | 8 MHz |
| DAC channel | NO |
| DMA channel | NO |
| External data bus width | 8 |
| Format | FIXED POINT |
| Integrated cache | NO |
| JESD-30 code | R-XSMA-N40 |
| low power mode | YES |
| Number of DMA channels | |
| Number of external interrupt devices | 2 |
| Number of I/O lines | 32 |
| Number of serial I/Os | 1 |
| Number of terminals | 40 |
| Number of timers | 2 |
| On-chip data RAM width | 8 |
| On-chip program ROM width | |
| Maximum operating temperature | 70 °C |
| Minimum operating temperature | |
| PWM channel | NO |
| Package body material | UNSPECIFIED |
| encapsulated code | SIMM |
| Encapsulate equivalent code | SSIM40,.2 |
| Package shape | RECTANGULAR |
| Package form | MICROELECTRONIC ASSEMBLY |
| power supply | 5 V |
| Certification status | Not Qualified |
| RAM (bytes) | 8192 |
| RAM (number of words) | 4096 |
| rom(word) | 0 |
| speed | 8 MHz |
| Maximum slew rate | 43 mA |
| Maximum supply voltage | 5.25 V |
| Minimum supply voltage | 4.75 V |
| Nominal supply voltage | 5 V |
| surface mount | NO |
| technology | CMOS |
| Temperature level | COMMERCIAL |
| Terminal form | NO LEAD |
| Terminal pitch | 1.27 mm |
| Terminal location | SINGLE |
| uPs/uCs/peripheral integrated circuit type | MICROCONTROLLER |
| Base Number Matches | 1 |

| DS2250T-8-8 | DS2250-64-12 | DS2250-8-8 | DS2250-32-8 | DS2250-32-12 | DS2250-8-12 | DS2250T-32-8 | DS2250T-8-12 | DS2250T-64-12 | |
|---|---|---|---|---|---|---|---|---|---|
| Description | Microcontroller, 8-Bit, 8051 CPU, 8MHz, CMOS, | Microcontroller, 8-Bit, 8051 CPU, 12MHz, CMOS, | Microcontroller, 8-Bit, 8051 CPU, 8MHz, CMOS, | Microcontroller, 8-Bit, 8051 CPU, 8MHz, CMOS, | Microcontroller, 8-Bit, 8051 CPU, 12MHz, CMOS, | Microcontroller, 8-Bit, 8051 CPU, 12MHz, CMOS, | Microcontroller, 8-Bit, 8051 CPU, 8MHz, CMOS, | Microcontroller, 8-Bit, 8051 CPU, 12MHz, CMOS, | Microcontroller, 8-Bit, 8051 CPU, 12MHz, CMOS, |
| Reach Compliance Code | unknown | unknow | unknown | unknown | unknown | unknown | unknown | unknown | unknown |
| Has ADC | NO | NO | NO | NO | NO | NO | NO | NO | NO |
| Other features | OPTIONAL PERMANENTLY POWERED REAL-TIME CLOCK; 10 YEAR DATA RETENTION | 16/8 BIT MULTIPLEXED EXPANDED ADDRESS/DATA BUS; 10 YEAR DATA RETENTION | 16/8 BIT MULTIPLEXED EXPANDED ADDRESS/DATA BUS; 10 YEAR DATA RETENTION | 16/8 BIT MULTIPLEXED EXPANDED ADDRESS/DATA BUS; 10 YEAR DATA RETENTION | 16/8 BIT MULTIPLEXED EXPANDED ADDRESS/DATA BUS; 10 YEAR DATA RETENTION | 16/8 BIT MULTIPLEXED EXPANDED ADDRESS/DATA BUS; 10 YEAR DATA RETENTION | OPTIONAL PERMANENTLY POWERED REAL-TIME CLOCK; 10 YEAR DATA RETENTION | OPTIONAL PERMANENTLY POWERED REAL-TIME CLOCK; 10 YEAR DATA RETENTION | OPTIONAL PERMANENTLY POWERED REAL-TIME CLOCK; 10 YEAR DATA RETENTION |
| Address bus width | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| bit size | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| boundary scan | NO | NO | NO | NO | NO | NO | NO | NO | NO |
| CPU series | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 |
| maximum clock frequency | 8 MHz | 12 MHz | 8 MHz | 8 MHz | 12 MHz | 12 MHz | 8 MHz | 12 MHz | 12 MHz |
| DAC channel | NO | NO | NO | NO | NO | NO | NO | NO | NO |
| DMA channel | NO | NO | NO | NO | NO | NO | NO | NO | NO |
| External data bus width | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Format | FIXED POINT | FIXED POINT | FIXED POINT | FIXED POINT | FIXED POINT | FIXED POINT | FIXED POINT | FIXED POINT | FIXED POINT |
| Integrated cache | NO | NO | NO | NO | NO | NO | NO | NO | NO |
| JESD-30 code | R-XSMA-N40 | R-XSMA-N40 | R-XSMA-N40 | R-XSMA-N40 | R-XSMA-N40 | R-XSMA-N40 | R-XSMA-N40 | R-XSMA-N40 | R-XSMA-N40 |
| low power mode | YES | YES | YES | YES | YES | YES | YES | YES | YES |
| Number of external interrupt devices | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Number of I/O lines | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| Number of serial I/Os | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Number of terminals | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Number of timers | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| On-chip data RAM width | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Maximum operating temperature | 70 °C | 70 °C | 70 °C | 70 °C | 70 °C | 70 °C | 70 °C | 70 °C | 70 °C |
| PWM channel | NO | NO | NO | NO | NO | NO | NO | NO | NO |
| Package body material | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED |
| encapsulated code | SIMM | SIMM | SIMM | SIMM | SIMM | SIMM | SIMM | SIMM | SIMM |
| Encapsulate equivalent code | SSIM40,.2 | SSIM40,.2 | SSIM40,.2 | SSIM40,.2 | SSIM40,.2 | SSIM40,.2 | SSIM40,.2 | SSIM40,.2 | SSIM40,.2 |
| Package shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package form | MICROELECTRONIC ASSEMBLY | MICROELECTRONIC ASSEMBLY | MICROELECTRONIC ASSEMBLY | MICROELECTRONIC ASSEMBLY | MICROELECTRONIC ASSEMBLY | MICROELECTRONIC ASSEMBLY | MICROELECTRONIC ASSEMBLY | MICROELECTRONIC ASSEMBLY | MICROELECTRONIC ASSEMBLY |
| power supply | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Certification status | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| RAM (bytes) | 8192 | 65536 | 8192 | 32768 | 32768 | 8192 | 32768 | 8192 | 65536 |
| RAM (number of words) | 4096 | 32768 | 4096 | 16384 | 16384 | 4096 | 32000 | 4096 | 32768 |
| speed | 8 MHz | 12 MHz | 8 MHz | 8 MHz | 12 MHz | 12 MHz | 8 MHz | 12 MHz | 12 MHz |
| Maximum supply voltage | 5.25 V | 5.25 V | 5.25 V | 5.25 V | 5.25 V | 5.25 V | 5.25 V | 5.25 V | 5.25 V |
| Minimum supply voltage | 4.75 V | 4.75 V | 4.75 V | 4.75 V | 4.75 V | 4.75 V | 4.75 V | 4.75 V | 4.75 V |
| Nominal supply voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| surface mount | NO | NO | NO | NO | NO | NO | NO | NO | NO |
| technology | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS |
| Temperature level | COMMERCIAL | COMMERCIAL | COMMERCIAL | COMMERCIAL | COMMERCIAL | COMMERCIAL | COMMERCIAL | COMMERCIAL | COMMERCIAL |
| Terminal form | NO LEAD | NO LEAD | NO LEAD | NO LEAD | NO LEAD | NO LEAD | NO LEAD | NO LEAD | NO LEAD |
| Terminal pitch | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm |
| Terminal location | SINGLE | SINGLE | SINGLE | SINGLE | SINGLE | SINGLE | SINGLE | SINGLE | SINGLE |
| uPs/uCs/peripheral integrated circuit type | MICROCONTROLLER | MICROCONTROLLER | MICROCONTROLLER | MICROCONTROLLER | MICROCONTROLLER | MICROCONTROLLER | MICROCONTROLLER | MICROCONTROLLER | MICROCONTROLLER |
| Maker | DALLAS | - | DALLAS | DALLAS | DALLAS | DALLAS | - | DALLAS | DALLAS |
| Maximum slew rate | 43 mA | - | 43 mA | - | 48 mA | 43 mA | - | 43 mA | - |
| Base Number Matches | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - |
| package instruction | - | SIMM, SSIM40,.2 | SIMM, SSIM40,.2 | SIMM, SSIM40,.2 | SIMM, SSIM40,.2 | SIMM, SSIM40,.2 | - | SIMM, SSIM40,.2 | SIMM, SSIM40,.2 |