Renesas R5F10268ASP#55

Overview

R5F10268ASP#55 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 MCU with 8 KB code flash, 2 KB data flash, and 512 B RAM, operating from 1.8 V to 5.5 V at up to 24 MHz (31 DMIPS), featuring 11-channel 10-bit ADC, dual CSI/I²C interfaces, and STOP/HALT/SNOOZE low-power modes - deployed in battery-powered sensor nodes and industrial control panels.

For engineers reviewing the R5F10268ASP#55 datasheet, R5F10268ASP#55 pinout, R5F10268ASP#55 application, or R5F10268ASP#55 equivalent, this page delivers verified package mapping (LSSOP-20), confirmed peripheral count (2× CSI, 2× simplified I²C, 1× UART), exact memory partitioning (8 KB code + 2 KB data flash), and validated low-power mode current (63 μA/MHz), enabling rapid schematic integration and power budgeting.

Technical Context

The R5F10268ASP#55 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and 1 MB address space, supporting instruction execution times from 0.04167 μs (@24 MHz high-speed on-chip oscillator) to 1 μs (@1 MHz). It integrates a 15 kHz low-speed on-chip oscillator for watchdog and interval timing, plus hardware CRC, RAM guard, and SFR guard for functional safety compliance in industrial environments.

Its clock system combines selectable high-speed on-chip oscillator (1–24 MHz, ±1.0% accuracy at TA = –20 to +85°C), external crystal support (1–20 MHz via X1/X2), and dynamic mode switching between HS/LS main clock modes - enabling deterministic real-time response while maintaining sub-μA standby in STOP mode with wake-up on INTP0–INTP3 or analog comparator events.

Key Specifications

Pinout & Package

Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F10267ASP#55 and R5F10269ASP#55, the R5F10268ASP#55 offers optimal balance of code density (8 KB), data retention (2 KB data flash), and RAM (512 B) for mid-complexity embedded control - avoiding over-provisioning while ensuring headroom for field-upgradable features.

Availability

R5F10268ASP#55 is available at Aetrix Electronics and suitable for industrial motor monitors, smart thermostats, wireless sensor nodes, and portable medical devices requiring stable component supply across extended product lifecycles.

Supply support for R5F10268ASP#55 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 delivering microcontrollers, analog, power, and SoC products for automotive, industrial, infrastructure, and IoT applications.

The RL78/G12 family targets cost-sensitive, ultra-low-power general-purpose embedded systems - emphasizing energy efficiency, integrated analog peripherals, and functional safety features for industrial and consumer equipment.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F10268ASP#55?

The R5F10268ASP#55 operates at up to 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS performance. This is measured under HS mode with VDD ≥ 2.7 V; at lower voltages (1.8–2.4 V), max frequency is reduced to 16 MHz per datasheet specifications. The R5F10268ASP#55 maintains consistent instruction timing across voltage ranges due to its adaptive pipeline design.

Does the R5F10268ASP#55 include data flash memory, and what are its endurance and voltage requirements?

Yes, the R5F10268ASP#55 integrates 2 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles (typical) with background operation (BGO) support. Rewrites are guaranteed across the full operating voltage range of 1.8 V to 5.5 V, enabling robust parameter storage and firmware update logging without external non-volatile memory. The R5F10268ASP#55 implements flash shield window protection to prevent unauthorized access.

How many analog input channels does the R5F10268ASP#55 support, and what ADC resolution and reference options are available?

The R5F10268ASP#55 supports 11 analog input channels (ANI0–ANI3, ANI16–ANI22) with 10-bit resolution. It includes an internal 1.45 V reference voltage and supports external differential references via AVREFP/AVREFM pins. The ADC operates across the full 1.8–5.5 V supply range, with sampling controlled by hardware timers or software triggers - all features confirmed in the R5F10268ASP#55 datasheet section 1.1 and electrical specs.

What low-power modes are implemented in the R5F10268ASP#55, and what are their typical current consumptions?

The R5F10268ASP#55 supports HALT (63 μA/MHz), STOP (0.52 μA typical), and SNOOZE modes. In STOP mode, only the low-speed oscillator and selected peripherals remain active, enabling wake-up via INTP0–INTP3, ADC completion, or serial interface activity. These values are measured at TA = 25°C, VDD = 3.3 V per R01DS0193EJ0250 Rev.2.50 datasheet Table 2.3. The R5F10268ASP#55 achieves true sub-μA standby without external circuitry.

Is the R5F10268ASP#55 pin-compatible with other RL78/G12 20-pin variants, and which peripherals differ across the R5F102xx series?

Yes, the R5F10268ASP#55 shares identical 20-pin LSSOP pinout and package (PLSP0020JB-A) with all R5F1026x and R5F1036x variants. Peripherals common to all R5F1026x parts include 2× CSI, 2× simplified I²C, 1× UART, 4× 16-bit timers, and hardware CRC. Differences exist only in flash/RAM sizes and data flash presence - the R5F10268ASP#55 specifically includes 2 KB data flash, unlike R5F1036x series.