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| Part Number | CY90F456SPMCR-G-N9E1 | CY90F457SPMCR-G-N9E1 | CY90F455SPMCR-G-N9E1 | CY90F456PMCR-G-N9E1 | 
|---|---|---|---|---|
| Manufacturer | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | 
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | 
| Core Processor | - | F²MC-16LX | F²MC-16LX | F²MC-16LX | 
| Core Size | - | 16-Bit | 16-Bit | 16-Bit | 
| Speed | - | 16MHz | 16MHz | 16MHz | 
| Connectivity | - | UART/USART | UART/USART | UART/USART | 
| Peripherals | - | POR, WDT | POR, WDT | POR, WDT | 
| Number of I/O | - | 34 | 36 | 34 | 
| Program Memory Size | - | 64KB (64K x 8) | 24KB (24K x 8) | 32KB (32K x 8) | 
| Program Memory Type | - | Flash | Flash | Flash | 
| EEPROM Size | - | - | - | - | 
| RAM Size | - | 2K x 8 | 2K x 8 | 2K x 8 | 
| Voltage - Supply (Vcc/Vdd) | - | 3.5V ~ 5.5V | 3.5V ~ 5.5V | 3.5V ~ 5.5V | 
| Data Converters | - | A/D 8x8/10b | A/D 8x10b | A/D 8x8/10b | 
| Oscillator Type | - | External | External | External | 
| Operating Temperature | - | -40°C ~ 105°C (TA) | -40°C ~ 105°C (TA) | -40°C ~ 105°C (TA) | 
| Mounting Type | - | Surface Mount | Surface Mount | Surface Mount | 
| Package / Case | - | 48-LQFP | 48-LQFP | 48-LQFP | 
| Supplier Device Package | - | 48-LQFP (7x7) | 48-LQFP (7x7) | 48-LQFP (7x7) |