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| Part Number | CY8C27643-24LTXI | CY8C28643-24LTXI | CY8C27643-24LTXIT | CY8C27643-24LFXI |
|---|---|---|---|---|
| Manufacturer | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Product Status | Active | Active | Active | Obsolete |
| Core Processor | M8C | M8C | M8C | M8C |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| Speed | 24MHz | 24MHz | 24MHz | 24MHz |
| Connectivity | I²C, SPI, UART/USART | I²C, IrDA, SPI, UART/USART | I²C, SPI, UART/USART | I²C, SPI, UART/USART |
| Peripherals | POR, PWM, WDT | LVD, POR, PWM, WDT | POR, PWM, WDT | POR, PWM, WDT |
| Number of I/O | 44 | 44 | 44 | 44 |
| Program Memory Size | 16KB (16K x 8) | 16KB (16K x 8) | 16KB (16K x 8) | 16KB (16K x 8) |
| Program Memory Type | Flash | Flash | Flash | Flash |
| EEPROM Size | - | - | - | - |
| RAM Size | 256 x 8 | 1K x 8 | 256 x 8 | 256 x 8 |
| Voltage - Supply (Vcc/Vdd) | 3V ~ 5.25V | 3V ~ 5.25V | 3V ~ 5.25V | 3V ~ 5.25V |
| Data Converters | A/D 4x14b; D/A 4x9b | A/D 4x14b; D/A 4x9b | A/D 4x14b; D/A 4x9b | A/D 4x14b; D/A 4x9b |
| Oscillator Type | 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) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 48-VFQFN Exposed Pad | 48-VFQFN Exposed Pad | 48-VFQFN Exposed Pad | 48-VFQFN Exposed Pad |
| Supplier Device Package | 48-QFN (7x7) | 48-QFN (7x7) | 48-QFN (7x7) | 48-QFN (7x7) |
