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IDT74LVC4245ASOG Equivalent & Substitute Parts
Part Overview
The IDT74LVC4245ASOG is a bidirectional translator circuit in 24-SOIC packaging manufactured by Renesas Electronics Corporation. This component belongs to the 74LVC logic series and is classified as obsolete. The part is designed for voltage level translation applications requiring bidirectional signal conversion across different voltage domains. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary for new designs and ongoing production requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | IDT74LVC4245ASOG |
| Manufacturer | Renesas Electronics Corporation |
| Product Category | Logic Translator |
| Package Type | 24-SOIC (0.295", 7.50mm Width) |
| Series | 74LVC |
| Product Status | Obsolete |
| Mounting Type | Surface Mount |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | Not specified |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution for the IDT74LVC4245ASOG is determined by the following critical parameters:
Package Compatibility: The original part uses 24-SOIC packaging. Substitute parts may use alternative surface-mount packages (24-TSSOP, 20-TSSOP, 20-LFCSP) provided they maintain functional equivalence and PCB layout can accommodate the different form factor.
Translator Type: All substitutes must function as bidirectional voltage level translators with 1 circuit and 8 channels per circuit to maintain functional compatibility.
Voltage Operating Range: Substitute parts must support overlapping or compatible voltage supply ranges. The original part operates within the 74LVC series voltage specifications. Substitutes from 74AVC, 74LVCH, 74LVX, and ADG3308 series provide equivalent or extended voltage translation capabilities.
Output Type: All qualified substitutes provide tri-state output capability, maintaining signal control and bus compatibility.
Product Status: Active product status is preferred for long-term availability and supply chain reliability.
Compliance & Certifications: RoHS3 compliance and REACH unaffected status are maintained across all recommended substitutes.
Parameter Comparison
| Part Number | Manufacturer | Package | Series | Translator Type | Channels | Output Type | Product Status | MSL | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| IDT74LVC4245ASOG | Renesas Electronics | 24-SOIC | 74LVC | Bidirectional | 8 | Tri-State | Obsolete | 1 | Not specified |
| 74AVC8T245PW,118 | Nexperia USA Inc. | 24-TSSOP | 74AVC | Translation Transceiver | 8 | 3-State | Active | 1 | ROHS3 Compliant |
| 74LVC4245APW,118 | Nexperia USA Inc. | 24-TSSOP | 74LVC | Bidirectional | 8 | Tri-State | Active | 1 | ROHS3 Compliant |
| 74LVCH8T245PW-Q10J | Nexperia USA Inc. | 24-TSSOP | 74LVCH | Translation Transceiver | 8 | 3-State | Active | 1 | ROHS3 Compliant |
| 74LVX3245MTCX | onsemi | 24-TSSOP | 74LVX | Bidirectional | 8 | Tri-State | Active | 1 | ROHS3 Compliant |
| ADG3308BCPZ-REEL7 | Analog Devices Inc. | 20-LFCSP (4x4) | ADG3308 | Bidirectional | 8 | Tri-State | Active | 3 | ROHS3 Compliant |
| ADG3308BRUZ-REEL7 | Analog Devices Inc. | 20-TSSOP | ADG3308 | Bidirectional | 8 | Tri-State | Active | 1 | ROHS3 Compliant |
| CLVCC3245AIDWREP | Texas Instruments | 24-SOIC | 74LVCC | Bidirectional | 8 | Tri-State | Active | 1 | ROHS3 Compliant |
| CLVCC3245AIPWREP | Texas Instruments | 24-TSSOP | 74LVCC | Bidirectional | 8 | Tri-State | Active | 1 | ROHS3 Compliant |
| CLVCC4245AMPWREP | Texas Instruments | 24-TSSOP | 74LVCC | Bidirectional | 8 | Tri-State | Active | 1 | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Recommendation - Package-Matched Substitute: CLVCC3245AIDWREP (Texas Instruments) maintains the original 24-SOIC package format, eliminating PCB layout redesign requirements. This part is active, RoHS3 compliant, and carries MSL 1 rating identical to the original component.
Alternative Recommendations - Enhanced Availability: 74LVC4245APW,118 (Nexperia USA Inc.) provides the same 74LVC series lineage with 24-TSSOP packaging and highest inventory availability (220,341 units). This substitution requires PCB layout modification but offers superior supply chain stability.
ADG3308BRUZ-REEL7 (Analog Devices Inc.) offers bidirectional translation with auto-direction sensing capability in 20-TSSOP packaging. This part provides extended voltage range (1.15V to 5.5V on both channels) and 50Mbps data rate specification, suitable for applications requiring higher performance margins.
Automotive-Grade Option: 74LVCH8T245PW-Q10J (Nexperia USA Inc.) provides AEC-Q100 qualification for automotive applications with extended output current capability (32mA vs. standard ratings). This part is recommended for designs requiring automotive-grade components.
All recommended substitutes maintain RoHS3 compliance, REACH unaffected status, and MSL 1 or MSL 3 ratings compatible with standard manufacturing processes.
Frequently Asked Questions (FAQ)
Q: Can I directly replace IDT74LVC4245ASOG with CLVCC3245AIDWREP without PCB modifications? A: Yes. CLVCC3245AIDWREP uses identical 24-SOIC packaging with the same pin count and layout. No PCB redesign is required. Verify voltage supply ranges match your application requirements.
Q: What is the primary difference between 24-SOIC and 24-TSSOP packages? A: 24-SOIC (0.295" width) and 24-TSSOP (0.173" width) are both 24-pin surface-mount packages with identical pin counts but different physical dimensions. TSSOP offers smaller footprint. PCB layout and component placement must be adjusted for package changes.
Q: Are all substitute parts RoHS3 compliant? A: Yes. All recommended substitutes carry RoHS3 compliance certification. The original IDT74LVC4245ASOG RoHS status was not specified due to its obsolete classification.
Q: Which substitute offers the widest voltage operating range? A: ADG3308BRUZ-REEL7 supports 1.15V to 5.5V on VCCA and 1.65V to 5.5V on VCCB, providing the broadest voltage translation capability across the substitute list.
Q: Can I use 74LVX3245MTCX as a direct replacement? A: 74LVX3245MTCX functions as a bidirectional translator but operates within narrower voltage ranges (VCCA: 2.7V–3.6V, VCCB: 4.5V–5.5V). Verify your application voltage requirements before substitution. Package is 24-TSSOP, requiring PCB layout changes.
Q: What does MSL 3 rating mean for ADG3308BCPZ-REEL7? A: MSL 3 indicates 168-hour moisture sensitivity level. This part requires controlled storage conditions and baking procedures before reflow soldering. Standard manufacturing processes typically accommodate MSL 3 components without additional complexity.
Q: Is 74AVC8T245PW,118 suitable for my application? A: 74AVC8T245PW,118 operates within 0.8V to 3.6V supply range, narrower than the original 74LVC series. Confirm your voltage requirements fall within this range. This part provides translation transceiver functionality with 3-state output in 24-TSSOP packaging.
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