Renesas R5F11EA8ASP#50

Overview

R5F11EA8ASP#50 from Renesas is an 8 KB flash, 1.5 KB RAM RL78/G1G 8-bit microcontroller in a 30-pin LSSOP package, operating from 2.7–5.5 V with ultra-low-power STOP/HALT/SNOOZE modes, 10-bit A/D converter (8 channels), dual comparators, and integrated programmable gain amplifier for sensor interface applications in battery-powered consumer devices.

For engineers reviewing the R5F11EA8ASP#50 datasheet, R5F11EA8ASP#50 pinout, R5F11EA8ASP#50 application, or R5F11EA8ASP#50 equivalent, key selection criteria include its 30-pin LSSOP footprint, 8 KB code flash capacity, 26 I/O count, 10-bit ADC with internal reference and temperature sensor, and support for UART0/UART1, simplified SPI (CSI), and simplified I²C interfaces in industrial and home appliance control systems.

Technical Context

The R5F11EA8ASP#50 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable instruction execution time (0.04167 µs at 24 MHz high-speed on-chip oscillator). It integrates a 12-bit interval timer, watchdog timer, event link controller (18 input events), and programmable clock/buzzer output unit.

Its analog subsystem includes an 8-channel 10-bit A/D converter with AVREFP/AVREFM inputs, two comparators with 8-bit DAC reference selection, and a single PGA channel-enabling direct sensor signal conditioning without external amplification. The device supports both crystal (1–20 MHz) and high-speed on-chip oscillator (1–24 MHz, ±2% accuracy) clock sources.

Key Specifications

Pinout & Package

30-pin plastic LSSOP (7.62 mm, 0.65 mm pitch) package with REGC capacitor connection requirement (0.47–1 µF to VSS). Pin functions support flexible peripheral assignment via PIO redirection register (PIOR1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F11EAAASP#50 and R5F11EB8AFP#50, the R5F11EA8ASP#50 delivers optimal cost and footprint efficiency for fixed-function, resource-constrained applications - retaining full peripheral compatibility while minimizing board area and BOM cost in compact consumer electronics.

Availability

R5F11EA8ASP#50 is available at Aetrix Electronics and suitable for smart home sensor nodes, industrial HMI panels, white goods control boards, and portable medical diagnostics requiring stable component supply across production lifecycles.

Supply support for R5F11EA8ASP#50 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 is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G1G product line targets cost-sensitive, ultra-low-power embedded applications in consumer appliances and industrial controls - emphasizing integration of analog peripherals, energy efficiency, and ease of certification.

FAQ

What is the maximum operating frequency of the R5F11EA8ASP#50 using its internal oscillator?

The R5F11EA8ASP#50 supports a high-speed on-chip oscillator up to 24 MHz (±2% accuracy) in HS mode, enabling a minimum instruction execution time of 0.04167 µs. This frequency is selectable via option byte and HOCODIV register settings and operates across the full 2.7–5.5 V supply range.

Does the R5F11EA8ASP#50 support hardware debugging during production deployment?

No - the on-chip debug function in the R5F11EA8ASP#50 is intended solely for development and evaluation. Renesas explicitly cautions against using it in mass-produced products due to potential flash memory wear-out beyond guaranteed rewrite cycles, which may compromise long-term reliability of the R5F11EA8ASP#50.

How many analog input channels does the R5F11EA8ASP#50 provide, and what reference options are available?

The R5F11EA8ASP#50 provides 8 dedicated analog input channels (ANI0–ANI3, ANI16–ANI19). It supports internal 1.45 V reference voltage and external references via AVREFP/AVREFM pins. The internal reference is selectable only in HS (high-speed main) mode per the RL78/G1G datasheet.

Can the R5F11EA8ASP#50 drive standard 5 V logic inputs directly from its GPIOs?

Yes - the R5F11EA8ASP#50 GPIOs support TTL input buffer mode on selected pins (P01, P10, P15–P17, P30, P31, P50), accepting logic-high inputs down to 1.50 V (at 2.7 V VDD) and up to VDD. Output voltage levels meet 5 V-tolerant specifications when VDD = 5.5 V, with VOH ≥ VDD − 1.5 V at 10 mA sink.

What packaging and tape format does the R5F11EA8ASP#50 use for automated assembly?

The R5F11EA8ASP#50 uses a 30-pin plastic LSSOP (7.62 mm, 0.65 mm pitch) package, and the #50 suffix indicates embossed tape packaging - compatible with standard SMT pick-and-place equipment for high-volume manufacturing of the R5F11EA8ASP#50.