Renesas SLG46533M-SKT

Overview

SLG46533M-SKT from Renesas Electronics is a programmable mixed-signal matrix IC featuring 22-pin MSTQFN packaging, 1.8–5.0 V supply range, -40 °C to +85 °C operation, four analog comparators, 16×8 RAM with OTP-initialized state, and I²C serial interface. It serves as a configurable logic and signal-conditioning engine in compact embedded control systems.

For engineers reviewing the SLG46533M-SKT datasheet, SLG46533M-SKT pinout, SLG46533M-SKT application, or SLG46533M-SKT equivalent, this device supports rapid prototyping of custom logic, voltage monitoring, timing generation, and I²C-based configuration in space-constrained consumer and industrial electronics.

Technical Context

The SLG46533M-SKT integrates a reconfigurable interconnect matrix linking 26 combination function macrocells-including 12 selectable 3-bit LUTs/DFFs, five 8-bit counters/delays, two 16-bit counters/delays, and dual deglitch filters with edge detection. Its analog subsystem includes four ACMPs with independent positive/negative inputs and two voltage references.

It features three oscillators: user-selectable 25 kHz/2 MHz RC, 25 MHz RC, and external crystal (XTAL0/XTAL1) or clock inputs (EXT_CLK0–EXT_CLK2). Power-on reset (POR), read-back protection, and I²C slave interface enable secure, self-contained system integration without external controllers.

Key Specifications

Pinout & Package

MSTQFN-22 package: 2.0 mm × 2.2 mm × 0.55 mm body, 0.4 mm lead pitch, exposed thermal pad. Pin 1 = IO0 (top-left corner, marked dot); pin 22 = IO12.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable mixed-signal logic applications.

Compared with SLG46537M and SLG46620V, the SLG46533M-SKT delivers optimal balance of I²C configurability, analog monitoring depth, and compact 22-pin packaging-making it ideal for mid-complexity embedded control where crystal timing and single-bus management are essential.

Availability

SLG46533M-SKT is available at Aetrix Electronics and suitable for personal computers and servers, PC peripherals, consumer electronics, and handheld/portable electronics requiring stable component supply and long-term design-in support.

Supply support for SLG46533M-SKT 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 solutions for automotive, industrial, infrastructure, and IoT markets.

The GreenPAK family-including SLG46533M-SKT-is designed for rapid implementation of custom mixed-signal logic in ultra-small footprints, targeting cost-sensitive, space-constrained embedded control applications.

FAQ

What is the primary function of the SLG46533M-SKT in an electronic system?

The SLG46533M-SKT serves as a user-programmable mixed-signal logic device that replaces discrete analog comparators, timers, latches, and glue logic. Its 26 macrocells, four ACMPs, I²C interface, and OTP memory allow engineers to implement custom voltage monitoring, power sequencing, signal conditioning, and timing functions-all within a single 2.0 × 2.2 mm MSTQFN package. The SLG46533M-SKT eliminates the need for multiple discrete components while supporting field-configurable behavior through its non-volatile programming.

Does the SLG46533M-SKT support external crystal oscillators?

Yes, the SLG46533M-SKT supports external crystal oscillators via dedicated XTAL0 and XTAL1 pins (mapped to IO13 and IO14 respectively in MSTQFN-22). It accepts crystals in the 1–20 MHz range and provides internal load capacitance tuning. This capability enables precise, low-jitter clock generation for timing-critical functions such as I²C communication, counter synchronization, or deterministic delay chains-complementing its internal 25 kHz/2 MHz/25 MHz RC oscillators.

How many analog comparators does the SLG46533M-SKT include, and what are their key specifications?

The SLG46533M-SKT includes four independent analog comparators (ACMP0–ACMP3). Each has dedicated positive and negative input pins, supports input voltages up to VDD on the positive side and up to 1.2 V on the negative side, and operates across the full 1.8–5.0 V supply range. Propagation delay is typically 1.5–1.9 µs (at 5 V), and input offset voltage is untrimmed but characterized for typical use cases. These comparators can be routed to internal logic, filters, or output pins-enabling flexible voltage monitoring, window detection, and event-triggered responses without external components.

Can the SLG46533M-SKT be reprogrammed after initial programming?

No, the SLG46533M-SKT uses One-Time-Programmable (OTP) memory for its configuration storage. Once programmed, the logic, interconnect, and macrocell settings are permanently fixed. However, runtime configuration of certain parameters (e.g., I²C slave address, oscillator selection, filter settings) is supported via the I²C interface using volatile registers-allowing dynamic adjustment during operation without altering the OTP-defined logic structure. Read-back protection prevents unauthorized access to the stored configuration.

What I/O drive strengths and configurations are available on the SLG46533M-SKT?

The SLG46533M-SKT offers multiple I/O drive options per pin: push-pull (1× or 2× strength), open-drain NMOS (1×, 2×, or 4×), and open-drain PMOS (1× or 2×). Drive strength scales with supply voltage-e.g., at 3.3 V, push-pull 2× delivers up to 3.4 mA sink/source, while NMOS 4× sinks up to 41 mA. Pins with OE control (e.g., IO1, IO3, IO5) support bidirectional operation under logic control. Schmitt-trigger inputs are configurable on most pins to improve noise immunity on slow or noisy signals.