Renesas M37560EFFS

Overview

M37560EFFS from Renesas Electronics is an 8-bit CMOS microcontroller based on the 740 family core, featuring integrated LCD drive control (40 segment / 4 common), 10-bit 8-channel A-D converter, dual 8-bit D-A converters, UART and clock-synchronous serial I/O, PWM output, and watchdog timer. It operates from 2.2 V to 5.5 V and supports –20°C to +85°C ambient temperature - used in consumer-grade LCD-based appliances requiring mixed-signal control.

For engineers reviewing the M37560EFFS datasheet, M37560EFFS pinout, M37560EFFS application, or M37560EFFS equivalent, this page delivers verified technical identity, package mapping (100-pin ceramic LCC), validated pin functions, real-time port and LCD timing capabilities, and two confirmed alternative parts for design continuity.

Technical Context

The M37560EFFS implements a 740-family CPU with 71 machine-language instructions and 0.5 µs minimum instruction execution time at 8 MHz. Its dual clock system supports main oscillator (ceramic resonator or quartz crystal) and sub-clock input for low-power RTC operation.

It integrates dedicated hardware blocks: LCD driver with programmable bias (1/2, 1/3) and duty (1/2, 1/3, 1/4), 8-bit × 3 and 16-bit × 2 timers, serial I/O1 (UART or clock-synchronous) and I/O2 (clock-synchronous only), and real-time port (RTP) outputs for timekeeping functions.

Key Specifications

Pinout & Package

Package: 100-pin ceramic leadless chip carrier (100D0), hermetically sealed, suitable for EPROM programming and high-reliability consumer applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with M37560EFFS, M37560EFGP offers lower assembly cost via fine-pitch QFP but sacrifices reprogrammability and thermal stability, while M37560EFFP retains identical electrical behavior in a more manufacturable plastic package - making M37560EFFS the sole choice for field-erasable, high-integrity consumer instrumentation.

Availability

M37560EFFS is available at Aetrix Electronics and suitable for smart home thermostats, portable medical monitors, industrial panel meters, and digital camera UI controllers requiring stable component supply across extended product lifecycles.

Supply support for M37560EFFS 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 Japanese semiconductor manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices.

The 7560 Group was designed specifically for cost-effective, LCD-integrated consumer electronics - combining mixed-signal peripherals, low-power operation, and on-chip display driving to reduce bill-of-materials in appliance and instrumentation applications.

FAQ

What is the package type of M37560EFFS?

M37560EFFS uses a 100-pin ceramic leadless chip carrier (100D0) package. This hermetically sealed ceramic LCC supports EPROM programming and provides superior thermal stability and moisture resistance compared to plastic QFP variants like M37560EFFP or M37560EFGP. The 100D0 footprint is unique to EPROM versions of the 7560 Group.

Does M37560EFFS support UART communication?

Yes, M37560EFFS supports UART mode via Serial I/O1 (pins P44/RXD and P45/TXD). This interface operates independently of the clock-synchronous-only Serial I/O2. UART capability enables direct RS-232 or TTL-level communication with host processors or PC interfaces without external level-shifting in many cases.

What LCD configurations does M37560EFFS support?

M37560EFFS supports 1/2 or 1/3 bias and 1/2, 1/3, or 1/4 duty LCD drive modes. It provides 4 common outputs (COM0–COM3) and 40 segment outputs (SEG0–SEG39), with SEG18–SEG39 shared with port pins P30–P37 and P00–P15. COM2 and COM3 are unused at 1/2 duty; COM3 is unused at 1/3 duty.

Can M37560EFFS operate from a 3.3 V supply?

Yes, M37560EFFS operates across 2.2 V to 5.5 V, fully supporting 3.3 V nominal supply. At 3 V and 32 kHz sub-clock frequency, its low-speed mode consumes only 45 µW - making it suitable for battery-backed RTC and display functions in energy-constrained designs.

Is there a built-in watchdog timer in M37560EFFS?

Yes, M37560EFFS includes a 14-bit watchdog timer that generates a system reset upon timeout. It is clocked by the internal high-speed oscillator and can be enabled/disabled via software control - providing essential firmware supervision for unattended consumer devices such as thermostats and panel meters.