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Renesas SLG46537M
- Part No.:
- SLG46537M
- Manufacturer:
- Renesas
- Package:
- 22-UFQFN
- Datasheet:
-
SLG46537M.pdf
- Description:
- IC CPLD 19MC 22MSTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,507
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Product details
Overview
SLG46537M from Renesas Electronics is a programmable mixed-signal matrix IC with asynchronous state machine, featuring four analog comparators, two voltage references, 19 combination function macrocells, I²C interface, and OTP memory. It operates from 1.8 V to 5 V across –40 °C to +85 °C and is packaged in 22-pin MSTQFN (2 × 2.2 × 0.55 mm). It serves as a configurable logic and signal-conditioning solution in power sequencing and system monitoring circuits.
For engineers reviewing the SLG46537M datasheet, SLG46537M pinout, SLG46537M application, or SLG46537M equivalent, key selection considerations include its 22-pin MSTQFN package, I²C programmability, dual-voltage-reference capability, 4-channel analog comparator support, and 8-state asynchronous state machine for deterministic event-driven control.
Technical Context
The SLG46537M implements a user-configurable interconnect matrix linking 19 macrocells-including LUTs, DFFs, counters/delays, deglitch filters with edge detection, and an 8-state ASM-via OTP-programmed routing. Its I²C interface enables runtime configuration and RAM read/write access to 8-byte user memory.
It integrates two independent voltage references (VREF0), supports external crystal (XTAL0/XTAL1) or RC oscillators (25 kHz / 2 MHz / 25 MHz), and includes an analog temperature sensor. All 17 GPIOs are configurable with multiple drive modes (push-pull 1x/2x, open-drain NMOS/PMOS 1x/2x/4x) and input options (Schmitt-triggered, low-voltage, analog).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V (±5 %) to 5 V (±10 %): Supports direct interfacing with 1.8 V, 3.3 V, and 5 V logic domains without level shifters. |
| Operating Temperature | –40 °C to +85 °C: Qualified for industrial and commercial embedded applications requiring thermal robustness. |
| I²C Interface | Standard-mode (≤400 kHz): Enables host MCU-based configuration, status readback, and dynamic parameter updates via SDA/SCL pins (IO6/IO7). |
| Analog Comparators | 4-channel ACMP with independent positive/negative inputs: Allows simultaneous voltage monitoring of up to four analog signals (e.g., rail voltages, battery levels). |
| Voltage References | Two internal VREF0 outputs: Provide stable reference sources for comparators or external circuitry; each configurable as buffered/unbuffered output. |
| Macrocell Count | 19 combination function macrocells: Includes LUTs (2-/3-/4-bit), DFFs, counters/delays, filters, and pattern generators-enabling complex digital logic and timing functions in one die. |
| State Machine | 8-state asynchronous state machine (ASM): Executes deterministic, event-triggered sequences without clock dependency-ideal for fault response and sequenced power-up/down. |
Pinout & Package
SLG46537M is supplied in a 22-pin MSTQFN package (2 mm × 2.2 mm × 0.55 mm, 0.4 mm pitch), with exposed thermal pad. Pin functions are fully configurable via OTP programming; IO pins support multiple input/output modes and analog roles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IO0–IO17 | Configurable General-Purpose I/O | 17 bidirectional pins supporting digital input (Schmitt/non-Schmitt/low-voltage), push-pull or open-drain output (1x/2x/4x drive), and analog functions (ACMP±, XTAL, EXT_CLK, VREF0). |
| VDD | Power Supply | Single 1.8–5 V supply; internally split into two power domains (IO0–IO8 and IO9–IO17) for current isolation and noise reduction. |
| GND | Ground Reference | Dual-side ground connection matching VDD domain partitioning; ensures stable reference for analog and digital sections. |
| SCL / SDA | I²C Serial Interface | IO6 (SCL) and IO7 (SDA) operate exclusively as open-drain NMOS outputs in I²C mode-require external pull-ups per I²C spec. |
| XTAL0 / XTAL1 | Cry stal Oscillator Input | IO13 and IO14 accept external 32.768 kHz or other crystals; enable precise timing when RC oscillator accuracy is insufficient. |
Key Features
| Feature | Design Value |
|---|---|
| OTP Memory with Read Lock | One-time programmable NVM prevents reverse engineering and ensures design IP protection after final configuration. |
| Programmable Deglitch Filters | Two dedicated FILTER_0/FILTER_1 blocks with edge detection suppress noise-induced false triggers on critical control lines. |
| Configurable Oscillators | Three on-chip RC oscillators (25 kHz, 2 MHz, 25 MHz) plus external crystal support-enables flexible clock sourcing without external components. |
| Temperature Sensor | Integrated analog temperature sensor provides system-level thermal monitoring without adding discrete sensors or ADC overhead. |
| Low-Voltage Digital I/O | Support for sub-1.8 V logic inputs allows interoperability with newer ultra-low-power microcontrollers and sensors. |
Applications
| Power Sequencing Control | System-Level Fault Monitoring |
|---|---|
Use Scenario: Coordinating startup/shutdown order of multiple voltage rails (e.g., core, I/O, analog) in FPGA or ASIC-based systems. IC Role / Device Role / Timing Role: SLG46537M acts as autonomous sequencer using its ASM and programmable delays-eliminating need for MCU intervention or external timers. Use Value: Reduces BOM count by replacing discrete timers, logic gates, and supervisor ICs; ensures repeatable, glitch-free power transitions. | Use Scenario: Detecting overvoltage, undervoltage, or thermal faults across multiple supply domains in servers or telecom equipment. IC Role / Device Role / Timing Role: SLG46537M monitors up to four rails via its 4 ACMPs and triggers immediate shutdown or alert signals using its ASM and GPIO outputs. Use Value: Achieves <1 µs response latency from fault detection to action-critical for protecting expensive downstream silicon. |
| USB-C Port Power Management | Industrial Sensor Signal Conditioning |
Use Scenario: Managing VBUS negotiation, CC line detection, and source/sink role switching in USB-C PD implementations. IC Role / Device Role / Timing Role: SLG46537M implements custom CC logic, timing windows, and state transitions-replacing fixed-function USB-C controllers where flexibility is required. Use Value: Enables rapid customization for proprietary charging protocols or multi-role port behavior without firmware development. | Use Scenario: Filtering, amplifying, and threshold-comparing analog sensor outputs (e.g., pressure, humidity) before digitization. IC Role / Device Role / Timing Role: SLG46537M conditions signals using ACMPs, deglitch filters, and programmable delays-acting as front-end analog interface before MCU ADC. Use Value: Offloads real-time analog processing from host MCU, reduces interrupt load, and improves system determinism. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal logic applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SLG46536M | Omits crystal oscillator support (no XTAL0/XTAL1 pins); same 22-pin MSTQFN package and macrocell count. | Not suitable for designs requiring precise external timing reference; otherwise identical functionality for RC-based timing. | Select SLG46536M only if crystal interface is unnecessary-reduces cost and layout complexity where 25 MHz RC accuracy suffices. |
| SLG46537V | 20-pin STQFN package (2 × 3 × 0.55 mm); identical OTP configuration, macrocell set, and electrical specs-but fewer GPIOs (16 vs. 17) and no XTAL1 pin. | Preferred for space-constrained PCBs where 20-pin footprint is advantageous and XTAL1 is unused. | Choose SLG46537V when board area is critical and crystal interface requires only XTAL0; verify pin mapping compatibility with existing layout. |
Compared with SLG46536M and SLG46537V, the SLG46537M uniquely supports full crystal oscillator operation (XTAL0/XTAL1) in the 22-pin MSTQFN package-making it the only option among these three for applications demanding high-accuracy, low-jitter external timing while retaining maximum I/O count and analog integration.
Availability
SLG46537M is available at Aetrix Electronics and suitable for power sequencing control, system-level fault monitoring, and USB-C port power management requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SLG46537M 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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The SLG46537M belongs to the GreenPAK™ programmable mixed-signal matrix product line, designed to replace discrete logic, analog, and timing components with a single, field-configurable IC for system-level signal conditioning and control.
FAQ
What is the primary function of the SLG46537M in a system design?
The SLG46537M serves as a user-programmable mixed-signal matrix IC that replaces discrete logic gates, comparators, timers, and supervisors. Its core function is to implement custom digital logic, analog monitoring, and deterministic state-driven control-configured once via OTP memory-without requiring MCU firmware or external passive components.
Does the SLG46537M support I²C communication, and what are its limitations?
Yes, the SLG46537M supports standard-mode I²C (≤400 kHz) via dedicated SCL (IO6) and SDA (IO7) pins. These pins operate exclusively in open-drain NMOS mode for I²C and require external pull-up resistors. The interface enables reading/writing to 8-byte RAM, configuring macrocells, and accessing OTP memory contents during development.
How many analog comparators does the SLG46537M integrate, and how are their inputs assigned?
The SLG46537M integrates four independent analog comparators (ACMP0–ACMP3). Each has dedicated positive and negative inputs routed to specific GPIOs: ACMP0± uses IO4/IO5; ACMP1± uses IO8/IO12; ACMP2± and ACMP3± share IO10/IO11 and IO12/IO14 respectively-enabling simultaneous monitoring of up to four analog signals.
Can the SLG46537M generate precise timing signals, and what oscillator options are available?
Yes, the SLG46537M offers multiple timing sources: a 25 kHz/2 MHz/25 MHz RC oscillator (with ±15 % typical accuracy), and support for external crystals via XTAL0/XTAL1 (IO13/IO14). The 25 MHz RC oscillator achieves <100 ns startup delay, while crystal mode delivers ppm-level stability-allowing trade-offs between precision, power, and bill-of-materials simplicity.
What package type and pin count does the SLG46537M use, and how does it differ from SLG46537V?
The SLG46537M uses a 22-pin MSTQFN package (2 mm × 2.2 mm × 0.55 mm, 0.4 mm pitch), providing 17 GPIOs including dedicated XTAL0/XTAL1 and dual VREF0 outputs. In contrast, SLG46537V uses a 20-pin STQFN (2 mm × 3 mm), with 16 GPIOs and no XTAL1 pin-making SLG46537M the choice for crystal-based timing and maximum I/O density.
SLG46537M Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 22-UFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Programmable Type:
- OTP
- Delay Time tpd(1) Max:
- -
- Voltage Supply - Internal:
- 1.71V ~ 1.89V, 3V ~ 3.6V, 4.5V ~ 5.5V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 19
- Number of Gates:
- -
- Number of I/O:
- 17
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 22-MSTQFN (2x2.2)
SLG46537M FAQ
1.How can I place an order for SLG46537M through Aetrix?
Please submit a Request for Quotation (RFQ) for SLG46537M on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SLG46537M reliable?
The price and inventory of SLG46537M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLG46537M is usually 5 days.
3.What payment methods are accepted for SLG46537M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLG46537M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SLG46537M?
SLG46537M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SLG46537M order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SLG46537M?
For technical support, including SLG46537M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLG46537M requirements.
6.How does Aetrix verify that SLG46537M is sourced from the original manufacturer or authorized distributors?
All SLG46537M products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SLG46537M meets industry standards.
7.What is the process for return or replacement of SLG46537M?
All SLG46537M units undergo pre-shipment inspection (PSI). If there is an issue with SLG46537M, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SLG46537M part is unused and in its original packaging.
Return procedure for SLG46537M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SLG46537M Tags
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Microchip Technology
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Lattice Semiconductor Corporation
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