Renesas R5F2M112ANSP#W4

Overview

R5F2M112ANSP from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 8 KB flash program memory, 512 bytes RAM, and dual 1 KB data flash blocks. It operates at up to 20 MHz (2.7–5.5 V) or 5 MHz (1.8–5.5 V), integrates a 10-bit × 5-channel A/D converter, UART0 serial interface, three timer modules (RJ2, RB2, RC), and voltage detection circuitry. It targets cost-sensitive embedded control in home appliances and consumer audio equipment.

For engineers reviewing the R5F2M112ANSP datasheet, R5F2M112ANSP pinout, R5F2M112ANSP application, or R5F2M112ANSP equivalent, key selection criteria include its 14-pin TSSOP package (PTSP0014JA-B), -20 °C to +85 °C operating range (N version), 5-channel ADC with sample-and-hold, and support for wait/stop power modes - all confirmed for this exact part number per Renesas R01DS0010EJ0200 Rev.2.00.

Technical Context

The R5F2M112ANSP implements the R8C CPU core with 89 fundamental instructions, 1 Mbyte address space, and hardware multiplier (16×16→32 bits). Its interrupt system supports 69 vectors with two priority levels and eight external interrupt inputs (INT×4, KI×4), though only six are physically available on the 14-pin variant due to pin constraints.

Peripheral integration includes Timer RJ2 (16-bit), Timer RB2 (8/16-bit selectable), Timer RC (16-bit with 4 capture/compare registers), UART0 supporting both synchronous and asynchronous serial I/O, and Comparator B with two channels (B1 and B3 reserved but not functional in R8C/M11A Group).

Key Specifications

Pinout & Package

14-pin TSSOP package (PTSP0014JA-B), 5.0 mm × 4.4 mm footprint, 0.65 mm lead pitch, exposed pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2M111ANSP, R5F2M112ANSP provides double program memory and 128 additional RAM bytes for enhanced feature sets; compared with R5F2M112ADSP, it trades extended temperature tolerance for lower cost and qualification effort in consumer applications.

Availability

R5F2M112ANSP is available at Aetrix Electronics and suitable for home appliance control, consumer audio interface, and office equipment panel applications requiring stable component supply and long-term production continuity.

Supply support for R5F2M112ANSP 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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and consumer markets.

The R8C/M11A Group, including R5F2M112ANSP, was designed for cost-effective, low-power embedded control in resource-constrained consumer electronics with integrated analog interfaces and robust EMI performance.

FAQ

What is the maximum operating frequency of the R5F2M112ANSP and under what voltage conditions?

The R5F2M112ANSP achieves a maximum operating frequency of 20 MHz when powered at 2.7 V to 5.5 V. At lower supply voltages (1.8 V to 5.5 V), the maximum guaranteed frequency reduces to 5 MHz per Renesas R01DS0010EJ0200 Rev.2.00 specification. This dual-frequency capability allows flexible power/performance trade-offs in battery-powered or wide-input-voltage designs.

Does the R5F2M112ANSP support in-circuit debugging and flash programming?

Yes, the R5F2M112ANSP includes on-chip debug functionality and supports in-system flash rewriting via its dedicated debug interface. This enables firmware updates and real-time debugging without requiring external emulators, reducing development time and production test complexity for applications using R5F2M112ANSP.

How many analog-to-digital converter channels does the R5F2M112ANSP have, and which pins are assigned?

The R5F2M112ANSP integrates a 10-bit A/D converter with five usable input channels: AN1 (P1_1), AN2 (P1_2), AN3 (P1_3), AN4 (P1_4), and AN7 (P1_7). AN0 is not available on the R8C/M11A Group per Table 1.1, confirming only these five channels are functional for R5F2M112ANSP.

What is the purpose of the MODE pin on the R5F2M112ANSP, and how should it be connected?

The MODE pin on the R5F2M112ANSP selects single-chip operation mode and must be connected to VCC via a pull-up resistor (typically 10 kΩ). Leaving it unconnected or pulling it low disables normal operation. This configuration ensures internal ROM execution and proper initialization of the R5F2M112ANSP at power-on.

Is the R5F2M112ANSP pin-compatible with other members of the R8C/M11A Group?

Yes, the R5F2M112ANSP shares identical pin assignment, electrical characteristics, and peripheral mapping with other 14-pin TSSOP variants in the R8C/M11A Group (e.g., R5F2M110ANSP, R5F2M111ANSP). Firmware and PCB layout are interchangeable across these parts, differing only in flash/RAM capacity and part marking.