ST16C650AIQ48-F Equivalent & Substitute Parts

Part Overview

The ST16C650AIQ48-F is a UART interface IC with integrated 32-byte FIFO, designed for serial communication applications requiring RS232, RS422, and RS485 protocol support. This single-channel UART device operates across a 2.9V to 5.5V supply range and supports data rates up to 3.125Mbps. The component is currently in active production status with 2100 units available in inventory. Substitute parts are identified when electrical specifications, mechanical packaging, and functional capabilities remain equivalent across the product line.

Substiute Parts

ST16C650AIQ48-F

MaxLinear, Inc.In Stock: 2116ST16C650AIQ48-F Datasheet

Current PartRFQ

ST16C650ACQ48-F

MaxLinear, Inc.In Stock: 2695ST16C650ACQ48-F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ST16C650AIQ48-F is determined by strict equivalence across the following parameters:

• Package / Case: 48-TQFP (7x7) form factor
• Number of UART Channels: 1 channel configuration
• FIFO Size: 32 Byte buffer capacity
• Protocol Support: RS232, RS422, RS485 compatibility
• Data Rate (Max): 3.125Mbps maximum throughput
• Voltage - Supply: 2.9V ~ 5.5V operating range
• Mounting Type: Surface Mount technology
• Functional Features: Auto Flow Control, IrDA Encoder/Decoder, False Start Bit Detection, Modem Control, Internal Oscillator, Printer Port, Timer/Counter

The ST16C650ACQ48-F meets all these criteria and qualifies as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the ST16C650AIQ48-F and ST16C650ACQ48-F are active production components from MaxLinear, Inc., with identical electrical and mechanical specifications. The ST16C650ACQ48-F carries ROHS3 compliance certification, while the ST16C650AIQ48-F is RoHS Compliant. Both devices maintain MSL Level 3 (168 Hours) moisture sensitivity and share identical ECCN and HTSUS classifications. Selection between these parts should be based on compliance requirements specific to the application and supply chain constraints. Current inventory availability shows 2598 units of ST16C650ACQ48-F versus 2100 units of ST16C650AIQ48-F.

Frequently Asked Questions (FAQ)

Q: Can ST16C650ACQ48-F be used as a direct replacement for ST16C650AIQ48-F?

A: Yes. Both parts are parametrically equivalent across all electrical specifications, channel configuration, FIFO capacity, protocol support, data rate, supply voltage, and functional features. The 48-TQFP (7x7) package ensures mechanical compatibility in PCB layouts.

Q: What are the key differences between these two part numbers?

A: The primary difference is RoHS certification status. ST16C650AIQ48-F carries RoHS Compliant certification, while ST16C650ACQ48-F carries ROHS3 Compliant certification. All other parameters, including electrical performance and physical packaging, are identical.

Q: Are there any compatibility concerns with the 48-TQFP package?

A: No. Both parts use the identical 48-TQFP (7x7) surface mount package. PCB footprints, solder pad layouts, and mounting procedures are interchangeable.

Q: What is the significance of MSL Level 3 (168 Hours)?

A: MSL Level 3 indicates the component can be exposed to moisture for up to 168 hours at specified temperature and humidity conditions before soldering. Both parts share this rating, requiring identical handling and storage protocols.

Q: Do these parts support the same communication protocols?

A: Yes. Both ST16C650AIQ48-F and ST16C650ACQ48-F support RS232, RS422, and RS485 protocols with identical maximum data rates of 3.125Mbps and equivalent feature sets including auto flow control, IrDA encoding/decoding, false start bit detection, and modem control.