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| Part Number | C8051F38B-GM | C8051F38C-GM | C8051F38B-GMR | C8051F38B-GQ | C8051F381-GM | C8051F383-GM | C8051F385-GM | C8051F387-GM |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Product Status | Discontinued at Digi-Key | Active | Discontinued at Digi-Key | Discontinued at Digi-Key | Active | Active | Active | Active |
| Core Processor | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 | 8051 |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| Speed | 48 MIPS | 48 MIPS | 48 MIPS | 48 MIPS | 48 MIPS | 48 MIPS | 48 MIPS | 48 MIPS |
| Connectivity | I²C, SPI, UART/USART | I²C, SPI, UART/USART, USB | I²C, SPI, UART/USART | I²C, SPI, UART/USART | I²C, SPI, UART/USART, USB | I²C, SPI, UART/USART, USB | I²C, SPI, UART/USART, USB | I²C, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Program Memory Size | 32KB (32K x 8) | 16KB (16K x 8) | 32KB (32K x 8) | 32KB (32K x 8) | 64KB (64K x 8) | 32KB (32K x 8) | 64KB (64K x 8) | 32KB (32K x 8) |
| Program Memory Type | Flash | Flash | Flash | Flash | Flash | Flash | Flash | Flash |
| EEPROM Size | - | - | - | - | - | - | - | - |
| RAM Size | 2.25K x 8 | 2.25K x 8 | 2.25K x 8 | 2.25K x 8 | 4.25K x 8 | 2.25K x 8 | 4.25K x 8 | 2.25K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.25V | 2.7V ~ 5.25V | 2.7V ~ 5.25V | 2.7V ~ 5.25V | 2.7V ~ 5.25V | 2.7V ~ 5.25V | 2.7V ~ 5.25V | 2.7V ~ 5.25V |
| Data Converters | A/D 21x10b | A/D 21x10b | A/D 21x10b | A/D 21x10b | A/D 21x10b | A/D 21x10b | - | - |
| Oscillator Type | Internal | Internal | Internal | Internal | Internal | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-LQFP | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad |
| Supplier Device Package | - | 32-QFN (5x5) | - | - | 32-QFN (5x5) | 32-QFN (5x5) | 32-QFN (5x5) | 32-QFN (5x5) |
