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Renesas R5F21357ANFP#V2
- Part No.:
- R5F21357ANFP#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
R5F21357ANFP#V2.pdf
- Description:
- 16-BIT, FLASH, R8C CPU
- Quantity:
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Product details
Overview
R5F21357ANFP from Renesas Electronics is a 16-bit R8C CPU core-based microcontroller in the R8C/35A Group, designed for embedded control in consumer and industrial applications. It features 48 KB program ROM, 4 KB data flash with background operation (BGO), 4 KB RAM, 10-bit A/D converter (12 channels), dual 8-bit D/A converters, and integrated LIN module. It operates at up to 20 MHz (VCC = 2.7–5.5 V) and supports -20°C to +85°C ambient temperature.
For engineers reviewing the R5F21357ANFP datasheet, R5F21357ANFP pinout, R5F21357ANFP application, or R5F21357ANFP equivalent, this page delivers verified technical context, exact pin functions, real-world use cases, and validated alternative options - all grounded in Renesas' official R8C/35A Group documentation (REJ03B0225-0100 Rev.1.00).
Technical Context
The R5F21357ANFP implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit hardware multiplier, and multiply-accumulate capability. Its memory architecture includes 1 Mbyte address space, fixed interrupt vector table at 0FFDCh–0FFFFh, and data flash organized as four 1 KB blocks (A–D) mapped to 03000h–03FFFh.
Peripheral integration includes Timer RD (16-bit ×2 with complementary PWM and three-phase waveform generation), UART0/1/2 (with I²C mode on UART2), SSU, LIN hardware support via Timer RA and UART0, and voltage detection circuitry with programmable levels. Clock sources comprise XIN (up to 20 MHz), XCIN (32 kHz), and low-speed on-chip oscillator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 50 ns min instruction time at 20 MHz |
| Memory | 48 KB program ROM, 4 KB data flash (4 × 1 KB blocks), 4 KB RAM |
| A/D Converter | 10-bit resolution, 12 input channels, sample-and-hold, sweep mode |
| D/A Converter | 8-bit × 2 independent outputs (DA0, DA1) |
| Timers | Timer RA/RB (8-bit), RC (16-bit), RD (16-bit ×2 with 6-pin PWM & complementary modes), RE (8-bit RTC) |
| Serial Interfaces | UART0/1 (clock sync/UART), UART2 (UART/I²C/multiprocessor), SSU (shared with I²C), hardware LIN |
| Operating Range | VCC = 1.8–5.5 V; ambient temperature −20°C to +85°C (N version) |
| Package | 52-pin LQFP (PLQP0052JA-A), 10 mm × 10 mm, 0.65 mm pitch |
Pinout & Package
Package: 52-pin LQFP (PLQP0052JA-A), body size 10 mm × 10 mm, pin pitch 0.65 mm, lead count 52, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | CMOS I/O port with analog inputs | Support AN0–AN7, DA0/DA1, TREO, TRCIOx; configurable pull-up, high-current drive |
| P1_0–P1_7 | CMOS I/O port with key inputs & comparators | Support AN8–AN11, KI0–KI3, IVCMP1/IVCMP3, LVCMP1/LVCMP2, TRAIO/TRBO |
| P2_0–P2_7 | CMOS I/O port with timer RD I/O | Support TRDIOA0–TRDIOD1, TRDCLK, INT1; used for high-resolution PWM and capture/compare |
| P3_0–P3_7 | CMOS I/O port with serial interface pins | Support SCL/SDA (I²C), SSO/SSCK/SSI (SSU), RXD2/SCL2/TXD2/SDA2, INT1/INT2/INT3 |
| P4_2–P4_7 | Analog reference & clock I/O | VREF (A/D & D/A ref), MODE (startup config), XIN/XOUT (main oscillator), XCIN/XCOUT (32 kHz) |
| P5_6, P5_7 | Timer RA output & general I/O | P5_6 = TRAO; P5_7 = general-purpose I/O with no alternate peripheral function |
| P6_0–P6_7 | CMOS I/O port with LIN & timer RE | P6_0 = TREO (RTC output), P6_2–P6_4 = CLK1/TXD1/RXD1, P6_5–P6_7 = INT2/INT4/INT3 |
| RESET, VCC, VSS, AVCC, AVSS | Power & reset control | Active-low RESET; separate analog/digital power domains with dedicated AVCC/AVSS pins |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Enables concurrent program execution and data flash erase/write without halting CPU |
| Hardware LIN Module | Full LIN 2.0/2.1 compliance using Timer RA and UART0 - no software bit-banging required |
| Complementary PWM Generation | Timer RD supports synchronous three-phase waveforms (6-pin output) with dead-time control |
| Voltage Detection Circuit | Configurable reset and voltage monitor levels (VDD monitoring with selectable thresholds) |
| Low-Power Operating Modes | Wait mode (3.5 µA @ 3.0 V, 32 kHz), stop mode (2.0 µA), and multiple clock source selection |
| On-Chip Debug Support | Full debug capability including breakpoints, watchpoints, and flash rewrite during development |
Applications
| Home Appliance Motor Control | Industrial Sensor Node |
|---|---|
|
Use Scenario: Variable-speed control of BLDC motors in washing machines and air conditioners. IC Role / Device Role / Timing Role: Main system controller executing motor commutation logic, current sensing via A/D, and PWM generation via Timer RD. Use Value: Integrated complementary PWM with dead-time insertion eliminates external gate drivers; BGO enables firmware updates without motor interruption. |
Use Scenario: Battery-powered environmental sensor hub aggregating temperature, humidity, and CO₂ readings. IC Role / Device Role / Timing Role: Low-power data acquisition node managing ADC sampling, I²C sensor reads, and UART telemetry transmission. Use Value: Sub-µA stop mode extends battery life; 12-channel A/D with sweep mode reduces polling overhead; UART2 I²C mode simplifies multi-sensor interfacing. |
| Audio Equipment UI Controller | Office Equipment Power Management |
|
Use Scenario: Front-panel control and display management in digital audio receivers and amplifiers. IC Role / Device Role / Timing Role: Dedicated UI processor handling rotary encoder inputs (KI0–KI3), LED/DAC-driven volume indicators, and IR remote decoding. Use Value: Key input interrupt with debounce logic reduces host MCU load; dual 8-bit DACs drive analog meter displays directly. |
Use Scenario: Standby power sequencing and thermal monitoring in multifunction printers and copiers. IC Role / Device Role / Timing Role: System supervisor monitoring VDD, internal temperature, and AC line status via comparator inputs and voltage detection. Use Value: Programmable voltage detection levels trigger safe shutdown before rail collapse; comparator B inputs accept external thermistor signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21356ANFP | 32 KB program ROM, 2.5 KB RAM, same package and peripheral set | Lower memory capacity limits complex control algorithms or larger firmware images | Select when application code size remains under 32 KB and cost optimization is prioritized over future scalability |
| R5F21357ADFP | Identical memory and peripherals, but rated for −40°C to +85°C operating range | Required for industrial or automotive-adjacent environments where extended temperature stability is mandatory | Choose for deployments outside commercial temperature range; otherwise R5F21357ANFP suffices for office/home equipment |
Compared with R5F21356ANFP, R5F21357ANFP provides 16 KB additional program ROM and 1.5 KB more RAM - enabling richer feature sets and buffer headroom. Against R5F21357ADFP, it trades extended temperature qualification for lower cost in standard ambient conditions.
Availability
R5F21357ANFP is available at Aetrix Electronics and suitable for home appliance motor control, industrial sensor nodes, audio equipment UI controllers, and office equipment power management requiring stable component supply across production lifecycles.
Supply support for R5F21357ANFP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a global semiconductor leader formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions.
The R8C/35A Group, including R5F21357ANFP, was engineered for cost-sensitive, low-to-mid complexity embedded control in consumer electronics and industrial equipment - emphasizing EMI/EMS robustness, integrated analog peripherals, and ultra-low-power operation.
FAQ
What is the maximum operating frequency of the R5F21357ANFP?
The R5F21357ANFP supports a maximum operating frequency of 20 MHz when powered at VCC = 2.7–5.5 V using the XIN clock source. At reduced supply voltages (1.8–5.5 V), the maximum frequency drops to 5 MHz. The device also integrates a 32 kHz XCIN oscillator and low-speed on-chip oscillator for low-power timing.
Does the R5F21357ANFP support in-system programming of its data flash?
Yes, the R5F21357ANFP supports in-system programming of its 4 KB data flash (organized as four 1 KB blocks) using the background operation (BGO) function. This allows firmware to erase or write flash memory while continuing program execution - critical for field-upgradable features without system interruption.
How many analog input channels does the R5F21357ANFP's A/D converter support?
The R5F21357ANFP integrates a single 10-bit A/D converter with 12 analog input channels (AN0–AN11). It includes sample-and-hold functionality and sweep mode for automatic sequential conversion - reducing CPU overhead in multi-sensor monitoring applications.
Is the R5F21357ANFP pin-compatible with other devices in the R8C/35A Group?
Yes, all R8C/35A Group devices, including R5F21357ANFP, share the identical 52-pin LQFP package (PLQP0052JA-A) and fully compatible pinout. Memory size, data flash allocation, and RAM capacity vary across part numbers, but I/O assignment, peripheral mapping, and electrical characteristics remain consistent.
What debug interfaces are supported by the R5F21357ANFP?
The R5F21357ANFP supports on-chip debugging via Renesas' standard E8/E8a debug interface. It enables full breakpoint/watchpoint control, register inspection, memory read/write, and on-board flash rewrite - all accessible through Renesas CS+ or e² studio IDEs without requiring external JTAG adapters.
R5F21357ANFP#V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
R5F21357ANFP#V2 FAQ
1.How can I place an order for R5F21357ANFP#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21357ANFP#V2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F21357ANFP#V2 reliable?
The price and inventory of R5F21357ANFP#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21357ANFP#V2 is usually 5 days.
3.What payment methods are accepted for R5F21357ANFP#V2?
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4.How is shipping managed for R5F21357ANFP#V2?
R5F21357ANFP#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21357ANFP#V2 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F21357ANFP#V2?
For technical support, including R5F21357ANFP#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21357ANFP#V2 requirements.
6.How does Aetrix verify that R5F21357ANFP#V2 is sourced from the original manufacturer or authorized distributors?
All R5F21357ANFP#V2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F21357ANFP#V2 meets industry standards.
7.What is the process for return or replacement of R5F21357ANFP#V2?
All R5F21357ANFP#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21357ANFP#V2, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F21357ANFP#V2 part is unused and in its original packaging.
Return procedure for R5F21357ANFP#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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