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Microchip Technology SIO1000-JV
- Part No.:
- SIO1000-JV
- Manufacturer:
- Microchip Technology
- Category:
- Specialized
- Package:
- 64-LQFP
- Datasheet:
-
SIO1000-JV.pdf
- Description:
- IC INTFACE SPECIALIZED 64STQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SIO1000-JV from SMSC is a 3.3 V, RoHS-compliant Super I/O controller in a 64-pin STQFP package, implementing LPC bus interface, one 16C550A-compatible UART with 16-byte FIFO, dual IR interfaces (IrDA v1.2 4 Mbps + Consumer IR with NEC/RC5), and a multi-mode IEEE 1284 parallel port with ChiProtect™-used in legacy PC motherboard I/O hub designs.
For engineers reviewing the SIO1000-JV datasheet, SIO1000-JV pinout, SIO1000-JV application, or SIO1000-JV equivalent, key selection considerations include LPC host compatibility, ACPI 2.0 power management support (IO_PME#, IO_SMI#), GPIO count (14), serial/parallel/IR resource allocation, and STQFP thermal-mechanical fit for embedded x86 platform integration.
Technical Context
The SIO1000-JV integrates an LPC bus interface with 8-bit I/O and DMA transfers, 16-bit address qualification, Serial IRQ, and PCI CLKRUN# support-enabling direct replacement of ISA-bus Super I/O in modern low-pin-count x86 systems. It implements two independent infrared controllers: one IrCC 2.0-compliant FIR port (IrDA v1.2, HPSIR, ASKIR) and one CIRCC2 port supporting NEC PPM and Phillips RC5 protocols with PME wake-up capability.
Its parallel port supports Standard, EPP 1.7/1.9, and ECP modes per IEEE 1284, with ChiProtect™ circuitry preventing damage from hot-plugged powered printers. Configuration is managed via Software Configurable Logic (SCL) and internal registers compliant with ISA Plug-and-Play v1.0a, allowing dynamic reassignment of I/O addresses, IRQs, and DMA channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.3 V operation with 5 V tolerant I/O pins-enables direct interfacing to legacy 5 V peripherals without level shifters. |
| LPC Interface | 8-bit multiplexed command/address/data bus with Serial IRQ and CLKRUN#-replaces ISA bus while reducing pin count and PCB routing complexity. |
| UART | One 16C550A-compatible port with 16-byte TX/RX FIFO and programmable baud up to 460 kbps-supports high-speed modem and console communication. |
| Infrared Support | Dual IR controllers: IrDA v1.2 (4 Mbps) + Consumer IR (NEC PPM/RC5 with PME wake)-enables both data transfer and remote control functionality in single chip. |
| Parallel Port | IEEE 1284-compliant multi-mode port (Standard/EPP/ECP) with ChiProtect™-prevents latch-up or damage when printer powers on before host system. |
| GPIO Count | 14 general-purpose I/O pins-provides flexible board-level control, status monitoring, and hardware configuration without external logic. |
| Power Management | ACPI 2.0 compliant with IO_PME# and IO_SMI# pins-enables OS-directed power state transitions and system wake events from IR, serial, or parallel activity. |
Pinout & Package
Package: 64-pin STQFP (7 mm × 7 mm × 1.4 mm body, 0.4 mm pitch), lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LAD0–LAD3 | LPC Bus Data/Address | Multiplexed 4-bit bidirectional bus for LPC command, address, and data transfers. |
| LFRAME# | LPC Frame Signal | Indicates start/end of LPC transaction cycle; synchronizes host-to-device communication. |
| LDRQ# | LPC DMA Request | Asserted by SIO1000-JV to request DMA service from LPC host during parallel or serial transfers. |
| IO_PME# | Power Management Event | Open-drain output signaling wake event to host chipset (e.g., from IR receive or serial activity). |
| IO_SMI# | System Management Interrupt | Open-drain output triggering SMM handler for secure firmware-level configuration or diagnostics. |
| TXD1/RXD1 | UART Channel 1 I/O | Full-duplex 16C550A-compatible serial interface for console, modem, or debug port. |
| IRTX2/IRRX2 | FIR Transceiver Signals | IrDA v1.2 4 Mbps infrared transmit/receive pair supporting HPSIR and ASKIR protocols. |
| CIRTX/CIRRX | Consumer IR Signals | Dedicated NEC/RC5 remote control transmit/receive interface with PME wake capability. |
| GP10–GP13 | GPIO Pins | Configurable as input/output with pull-up/down; used for board ID, fan control, or LED drive. |
| SER_IRQ | Serialized IRQ Output | PCI-compatible serialized interrupt signal shared across multiple LPC devices on same bus. |
Key Features
| Feature | Design Value |
|---|---|
| ChiProtect™ Parallel Port | Hardware protection against latch-up when powered printer connects to unpowered SIO1000-JV-eliminates need for external series resistors or isolation diodes. |
| Software Configurable Logic (SCL) | Runtime reconfiguration of UART, parallel port mode, and IRQ/DMA assignments via internal registers-reduces BIOS customization effort and enables field-upgradable I/O mapping. |
| Dual Independent IR Controllers | Separate dedicated hardware blocks for high-speed IrDA data and low-speed consumer remote control-avoids protocol contention and timing conflicts in shared IR PHY designs. |
| LPC Bus Compliance | Full implementation of Intel LPC specification including CLKRUN#, SERIRQ, and 8-bit DMA-ensures interoperability with Intel 8xx/9xx and AMD SB-series chipsets. |
| ACPI 2.0 Power Management | Native support for G0–G3 states with configurable wake sources (IR, serial, parallel, GPIO)-enables Windows-certified suspend/resume behavior without custom AML code. |
Applications
| Legacy PC Motherboard I/O Hub | Industrial x86 Embedded Controller |
|---|---|
Use Scenario: Integrating serial, parallel, and IR connectivity into ATX or microATX motherboard designs where ISA bus is deprecated but legacy peripheral support remains required. IC Role / Device Role / Timing Role: Centralized I/O hub managing LPC-hosted UART, parallel port, and dual IR controllers-replacing discrete 8250/8255/IRDA chips and reducing BOM count by 3–5 components. Use Value: Reduces PCB area by >40% vs. discrete solution and eliminates external filter components for IR and parallel ports-lowering total system cost and improving time-to-market. | Use Scenario: Enabling barcode scanner, receipt printer, and IR remote interface in ruggedized industrial PCs used in point-of-sale or kiosk applications. IC Role / Device Role / Timing Role: System-level I/O aggregator providing standardized LPC-connected peripherals to x86 SoC-handling hot-plug-safe parallel printer control and low-latency IR command decoding. Use Value: ChiProtect™ prevents field failures from printer power sequencing errors; dual IR paths allow simultaneous scanning (FIR) and remote UI control (CIR) without software arbitration. |
| Medical Diagnostic Equipment Console | Network Appliance Management Module |
Use Scenario: Supporting diagnostic tool connectivity (RS-232 serial log export, IR-based patient ID entry) in FDA-cleared medical devices requiring long-lifecycle component availability. IC Role / Device Role / Timing Role: Trusted I/O companion IC for main CPU-providing isolated, configurable serial/parallel/IR resources with deterministic interrupt latency under real-time OS. Use Value: ACPI 2.0 compliance ensures predictable power state transitions during battery-backed sleep; 14 GPIOs enable custom front-panel button/LED control without additional MCU. | Use Scenario: Providing out-of-band management I/O (serial console, IR-based reset, parallel-connected LCD status display) in rack-mounted network appliances. IC Role / Device Role / Timing Role: Dedicated management-domain I/O controller-decoupling baseboard management functions from main application processor to improve security and reliability. Use Value: IO_PME# and IO_SMI# enable hardware-triggered recovery actions (e.g., IR remote reboot); LPC isolation prevents management I/O faults from affecting primary data plane. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Super I/O controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Nuvoton NCT6776D | Integrated hardware monitor (temperature/voltage/fan), no FIR support, 128-pin LQFP package-requires more PCB area and lacks 4 Mbps infrared capability. | Targeted at modern server/desktop motherboards needing sensor telemetry; unsuitable where FIR data transfer or STQFP footprint is mandatory. | Select only if thermal monitoring is prioritized over IR bandwidth and board space allows larger package. |
| Winbond W83627DHG-P | Supports LPC and ISA, includes TPM interface, 100-pin QFP-broader legacy compatibility but higher pin count and no Consumer IR PME wake feature. | Used in enterprise desktop platforms requiring TPM and dual UARTs; lacks dedicated CIRCC2 block for NEC/RC5 remote wake. | Choose when TPM integration and dual serial ports outweigh need for compact STQFP and IR remote wakeup. |
Compared with NCT6776D and W83627DHG-P, the SIO1000-JV uniquely combines STQFP footprint efficiency, dual IR protocol support (FIR + Consumer), and ChiProtect™-enabled parallel port safety-making it optimal for space-constrained embedded x86 designs requiring robust legacy I/O and remote control capability.
Availability
SIO1000-JV is available at Aetrix Electronics and suitable for legacy PC motherboard I/O hub, industrial x86 embedded controller, and medical diagnostic equipment console applications requiring stable component supply and long-term lifecycle assurance.
Supply support for SIO1000-JV 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
SMSC (Standard Microsystems Corporation) was a fabless semiconductor company specializing in connectivity, embedded control, and mixed-signal ICs before its acquisition by Microchip Technology in 2012.
The SIO1000-JV belongs to SMSC's Super I/O product line, designed specifically to replace ISA-bus peripheral controllers in PC and embedded x86 platforms transitioning to LPC architecture while preserving full legacy I/O functionality.
FAQ
What is the operating voltage range for the SIO1000-JV?
The SIO1000-JV operates at 3.3 V nominal supply voltage with 5 V tolerant I/O pins. This allows direct connection to legacy 5 V peripherals such as printers and modems without external level-shifting circuitry. The device does not support 5 V core operation, and applying 5 V to VCC will cause permanent damage. All I/O pins-including UART, parallel, and IR signals-are specified for 5 V tolerance per the SMSC SIO1000 datasheet revision 0.1.
Does the SIO1000-JV support both IrDA and Consumer IR simultaneously?
Yes, the SIO1000-JV supports simultaneous operation of both infrared interfaces: one IrCC 2.0-compliant FIR port (IrDA v1.2, 4 Mbps, HPSIR, ASKIR) and one dedicated CIRCC2 port for Consumer IR (NEC PPM, Phillips RC5) with PME wake-up capability. These are physically and logically separate blocks-no resource sharing or arbitration is required. The SIO1000-JV datasheet confirms independent clock domains and register sets for each IR controller.
What package type and dimensions does the SIO1000-JV use?
The SIO1000-JV uses a 64-pin STQFP package with 7 mm × 7 mm body size, 1.4 mm height, and 0.4 mm lead pitch. Its footprint matches standard 2 mm grid layouts, and the package is lead-free and RoHS-compliant per the ordering designation "SIO1000-JV FOR 64 PIN, STQFP LEAD-FREE ROHS COMPLIANT PACKAGE." Pin 1 location is marked by a corner chamfer or dot per Figure 2 in the SMSC SIO1000 Product Preview.
How many GPIO pins does the SIO1000-JV provide, and are they configurable?
The SIO1000-JV provides 14 general-purpose I/O pins (GP10–GP13, GP14, GP23, GP4[0:7]). Each pin is software-configurable as input or output with programmable pull-up/pull-down via internal configuration registers. They support interrupt generation and can be mapped to alternate functions in some configurations. This flexibility is documented in the SIO1000-JV's Software Configurable Logic (SCL) section and confirmed in the General Purpose I/O register map of the datasheet.
Is the SIO1000-JV compatible with ACPI 2.0 and PC2001 specifications?
Yes, the SIO1000-JV is explicitly certified compliant with ACPI 2.0, PC99a, and PC2001 specifications. It implements required power management signals (IO_PME#, IO_SMI#), supports G0–G3 system states, and provides OS-directed configuration of I/O resources via Plug-and-Play registers. These compliance statements appear in the General Description and Product Features sections of the official SMSC SIO1000 Product Preview revision 0.1.
SIO1000-JV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- -
- Interface:
- LPC
- Voltage - Supply:
- 3.3V
- Supplier Device Package:
- 64-STQFP (7x7)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
SIO1000-JV FAQ
1.How can I place an order for SIO1000-JV through Aetrix?
Please submit a Request for Quotation (RFQ) for SIO1000-JV 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 SIO1000-JV reliable?
The price and inventory of SIO1000-JV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SIO1000-JV is usually 5 days.
3.What payment methods are accepted for SIO1000-JV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIO1000-JV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIO1000-JV?
SIO1000-JV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIO1000-JV 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 SIO1000-JV?
For technical support, including SIO1000-JV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIO1000-JV requirements.
6.How does Aetrix verify that SIO1000-JV is sourced from the original manufacturer or authorized distributors?
All SIO1000-JV 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 SIO1000-JV meets industry standards.
7.What is the process for return or replacement of SIO1000-JV?
All SIO1000-JV units undergo pre-shipment inspection (PSI). If there is an issue with SIO1000-JV, 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 SIO1000-JV part is unused and in its original packaging.
Return procedure for SIO1000-JV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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