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IDT74LVC4245APGG Equivalent & Substitute Parts
Part Overview
The IDT74LVC4245APGG is a bidirectional voltage level translator IC manufactured by Renesas Electronics Corporation, housed in a 24-TSSOP package. This component functions as a translator circuit for logic signal conversion between different voltage domains. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | IDT74LVC4245APGG |
| Manufacturer | Renesas Electronics Corporation |
| Category | Logic |
| Package / Case | 24-TSSOP (0.173", 4.40mm Width) |
| Series | 74LVC |
| Product Status | Obsolete |
| Mounting Type | Surface Mount |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution for the IDT74LVC4245APGG is determined by the following critical parameters:
- Package Compatibility: 24-TSSOP form factor (0.173", 4.40mm Width) or functionally equivalent packages
- Functional Classification: Bidirectional voltage level translator or translation transceiver with 8-channel, single-circuit configuration
- Mounting Type: Surface mount technology
- Moisture Sensitivity: MSL 1 (Unlimited)
- Compliance: RoHS3 compliant, REACH unaffected, EAR99 classification
Substitute parts are grouped into two categories based on functional equivalence and package options:
Category A - Direct 24-TSSOP Package Substitutes: Parts maintaining identical 24-TSSOP packaging with bidirectional or transceiver functionality.
Category B - Alternative Package Substitutes: Parts with equivalent electrical function but different package form factors (24-DHVQFN).
Parameter Comparison
| Part Number | Manufacturer | Series | Package | Product Status | Translator Type | Channels | Operating Temp (°C) | MSL |
|---|---|---|---|---|---|---|---|---|
| IDT74LVC4245APGG | Renesas Electronics | 74LVC | 24-TSSOP | Obsolete | Bidirectional | 8 | -40 to 85 | 1 |
| SN74AVC8T245PWR | Texas Instruments | 74AVC | 24-TSSOP | Active | Translation Transceiver | 8 | -40 to 85 | 1 |
| 74AVC8T245PW,118 | Nexperia USA Inc. | 74AVC | 24-TSSOP | Active | Translation Transceiver | 8 | -40 to 125 | 1 |
| 74AVC8T245PW-Q100J | Nexperia USA Inc. | 74AVC | 24-TSSOP | Active | Translation Transceiver | 8 | -40 to 125 | 1 |
| 74LVC4245ABQ,118 | Nexperia USA Inc. | 74LVC | 24-DHVQFN | Active | Bidirectional | 8 | -40 to 125 | 1 |
| 74LVC4245APW,118 | Nexperia USA Inc. | 74LVC | 24-TSSOP | Active | Bidirectional | 8 | -40 to 125 | 1 |
| 74LVC4245APW-Q100J | Nexperia USA Inc. | 74LVC | 24-TSSOP | Active | Bidirectional | 8 | -40 to 125 | 1 |
| 74LVCH8T245PW,118 | Nexperia USA Inc. | 74LVCH | 24-TSSOP | Active | Translation Transceiver | 8 | -40 to 125 | 1 |
| 74LVCH8T245PW-Q10J | Nexperia USA Inc. | 74LVCH | 24-TSSOP | Active | Translation Transceiver | 8 | -40 to 125 | 1 |
| 74LVX3245MTCX | onsemi | 74LVX | 24-TSSOP | Active | Bidirectional | 8 | -40 to 85 | 1 |
| 74LVXC3245MTC | onsemi | 74LVXC | 24-TSSOP | Obsolete | Bidirectional | 8 | -40 to 85 | 1 |
Engineering Selection Recommendations
Primary Substitutes (Active Status, 24-TSSOP Package)
For direct replacement in 24-TSSOP form factor, the following active parts are recommended:
-
74LVC4245APW,118 (Nexperia USA Inc.): Maintains the same 74LVC series designation and bidirectional translator function. Extended operating temperature range (-40°C to 125°C) provides improved thermal margin. RoHS3 compliant with unlimited MSL rating.
-
74LVC4245APW-Q100J (Nexperia USA Inc.): Automotive-grade variant with AEC-Q100 qualification. Identical electrical and package specifications to 74LVC4245APW,118. Suitable for applications requiring automotive-level reliability.
-
SN74AVC8T245PWR (Texas Instruments): Active 74AVC series translation transceiver in 24-TSSOP. Maintains identical operating temperature range to the original part (-40°C to 85°C). RoHS3 compliant.
Secondary Substitutes (Active Status, Alternative Packages)
- 74LVC4245ABQ,118 (Nexperia USA Inc.): Functionally equivalent bidirectional translator in 24-DHVQFN package. Requires PCB layout modification due to different footprint. Extended operating temperature range and active product status.
Extended Temperature Range Options
- 74LVCH8T245PW,118 and 74LVCH8T245PW-Q10J (Nexperia USA Inc.): 74LVCH series translation transceivers with extended operating temperature (-40°C to 125°C). Higher output current capability (32mA vs. standard ratings). Available in standard and automotive-grade variants.
Obsolete Status Consideration
The 74LVXC3245MTC (onsemi) is listed as obsolete and should not be selected for new designs despite functional compatibility.
Frequently Asked Questions (FAQ)
Q: Can I use 74LVC4245APW,118 as a direct replacement for IDT74LVC4245APGG?
A: Yes. Both parts share the same 24-TSSOP package, 74LVC series classification, and bidirectional translator function with 8 channels. The Nexperia part is active and RoHS3 compliant. The extended operating temperature range (-40°C to 125°C versus -40°C to 85°C) provides additional design margin.
Q: What is the difference between bidirectional translators and translation transceivers?
A: Bidirectional translators (74LVC4245 series) support signal translation in both directions on the same channels. Translation transceivers (74AVC8T245, 74LVCH8T245 series) also support bidirectional operation but may have different electrical characteristics such as output current ratings and supply voltage ranges. Both are functionally compatible for 8-channel, single-circuit applications.
Q: Can I use the 24-DHVQFN package variant (74LVC4245ABQ,118) instead of 24-TSSOP?
A: Electrically, yes. However, the 24-DHVQFN package has a different footprint (5.5mm x 4.6mm) compared to 24-TSSOP. PCB layout and routing must be redesigned. This substitution is viable only if board redesign is acceptable.
Q: Are automotive-grade variants (Q100J suffix) compatible with standard applications?
A: Yes. Automotive-grade parts (74LVC4245APW-Q100J, 74LVCH8T245PW-Q10J) meet AEC-Q100 qualification and are fully compatible with standard industrial and commercial applications. They provide additional reliability margin at no functional cost.
Q: What is the significance of MSL 1 (Unlimited) rating?
A: MSL 1 indicates unlimited shelf life and floor life without baking requirements. All listed substitute parts maintain this rating, ensuring no additional moisture management procedures are required during assembly.
Q: Which substitute offers the best thermal performance?
A: Parts with extended operating temperature range (-40°C to 125°C) provide superior thermal margin: 74LVC4245APW,118, 74LVC4245APW-Q100J, 74AVC8T245PW,118, 74AVC8T245PW-Q100J, 74LVCH8T245PW,118, and 74LVCH8T245PW-Q10J. Selection depends on functional requirements (bidirectional versus transceiver) and output current needs.
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