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| Part Number | C8051T621-GM | C8051T623-GM | C8051T622-GM | C8051T631-GM | C8051T621-GMR | C8051T321-GM | C8051T601-GM | C8051T611-GM | C8051T620-GM |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Product Status | Obsolete | Obsolete | Obsolete | Last Time Buy | Obsolete | Obsolete | Not For New Designs | Obsolete | Obsolete |
| Core Processor | 8051 | 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 | 8-Bit |
| Speed | 48 MIPS | 48 MIPS | 48 MIPS | 25MHz | 48 MIPS | 48 MIPS | 25MHz | 25MHz | 48 MIPS |
| Connectivity | I²C, SPI, UART/USART, USB | I²C, SPI, UART/USART, USB | I²C, SPI, UART/USART, USB | SMBus (2-Wire/I²C), SPI, UART/USART | I²C, SPI, UART/USART, USB | I²C, SPI, UART/USART, USB | SMBus (2-Wire/I²C), UART/USART | SMBus (2-Wire/I²C), SPI, UART/USART | I²C, SPI, UART/USART, USB |
| Peripherals | POR, PWM, WDT | POR, PWM, WDT | POR, PWM, WDT | POR, PWM, WDT | POR, PWM, WDT | POR, PWM, Temp Sensor, WDT | POR, PWM, WDT | POR, PWM, Temp Sensor, WDT | POR, PWM, Temp Sensor, WDT |
| Number of I/O | 24 | 16 | 16 | 17 | 24 | 21 | 8 | 25 | 24 |
| Program Memory Size | 16KB (16K x 8) | 8KB (8K x 8) | 16KB (16K x 8) | 8KB (8K x 8) | 16KB (16K x 8) | 16KB (16K x 8) | 8KB (8K x 8) | 16KB (16K x 8) | 16KB (16K x 8) |
| Program Memory Type | OTP | OTP | OTP | OTP | OTP | OTP | OTP | OTP | OTP |
| EEPROM Size | - | - | - | - | - | - | - | - | - |
| RAM Size | 1.25K x 8 | 1.25K x 8 | 1.25K x 8 | 768 x 8 | 1.25K x 8 | 1.25K x 8 | 256 x 8 | 1.25K x 8 | 1.25K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.25V | 1.8V ~ 5.25V | 1.8V ~ 5.25V | 1.8V ~ 3.6V | 1.8V ~ 5.25V | 1.8V ~ 5.25V | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 5.25V |
| Data Converters | - | - | - | - | - | A/D 21x10b | - | A/D 17x10b | A/D 21x10b |
| Oscillator Type | Internal | 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) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 32-VFQFN Exposed Pad | 24-WFQFN Exposed Pad | 24-WFQFN Exposed Pad | 20-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 28-VFQFN Exposed Pad | 10-VFDFN Exposed Pad | 28-VFQFN Exposed Pad | 32-VFQFN Exposed Pad |
| Supplier Device Package | 32-QFN (5x5) | 24-QFN (4x4) | 24-QFN (4x4) | 20-QFN (4x4) | 32-QFN (5x5) | 28-QFN (5x5) | 11-QFN (3x3) | 28-QFN (5x5) | 32-QFN (5x5) |
