For Reference Only
| Part Number | R5F21257SYFP#U0 |
| LIXINC Part # | R5F21257SYFP#U0 |
| Manufacturer | Rochester Electronics |
| Category | Integrated Circuits › Embedded - Microcontrollers |
| Description | IC MCU 16BIT 48KB FLASH 52LQFP |
| Lifecycle | Active |
| RoHS | No RoHS Information |
| EDA/CAD Models | R5F21257SYFP#U0 PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | Jan 23 - Jan 27 2026(Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment |
|
| Shipping | ![]() |
| Part Number: | R5F21257SYFP#U0 |
| Brand: | Rochester Electronics |
| Lifecycle: | Active |
| RoHS: | Lead free / RoHS Compliant |
| Category: | Integrated Circuits |
| Subcategory: | Embedded - Microcontrollers |
| Manufacturer: | Rochester Electronics |
| Series: | R8C/2x/25 |
| Package: | Tray |
| Part Status: | Obsolete |
| Core Processor: | R8C |
| Core Size: | 16-Bit |
| Speed: | 20MHz |
| Connectivity: | I²C, LINbus, SIO, SSU, UART/USART |
| Peripherals: | POR, Voltage Detect, WDT |
| Number of I/O: | 41 |
| Program Memory Size: | 48KB (48K x 8) |
| Program Memory Type: | FLASH |
| EEPROM Size: | - |
| RAM Size: | 2.5K x 8 |
| Voltage - Supply (Vcc/Vdd): | 2.2V ~ 5.5V |
| Data Converters: | A/D 12x10b |
| Oscillator Type: | Internal |
| Operating Temperature: | -20°C ~ 105°C (TA) |
| Mounting Type: | Surface Mount |
| Package / Case: | 52-LQFP |
| Supplier Device Package: | 52-LQFP (10x10) |
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| In Stock | 17688 - More on Order |
|---|---|
| Quote Limit | No Limit |
| Lead-Time | To be Confirmed |
| Minimum | 1 |
Warm Tips: Please fill out the form below. We will contact you as soon as possible.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1 | $4.28000 | $4.28 |
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