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74LVC4245ADB,112 Equivalent & Substitute Parts
Part Overview
The 74LVC4245ADB,112 is a bidirectional voltage level translator IC manufactured by Nexperia USA Inc., designed for logic-level signal conversion in mixed-voltage applications. This device features 1 circuit with 8 bidirectional channels in a 24-SSOP package. 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 | 74LVC4245ADB,112 |
| Manufacturer | Nexperia USA Inc. |
| Category | Logic |
| Product Status | Obsolete |
| Translator Type | Voltage Level |
| Channel Type | Bidirectional |
| Number of Circuits | 1 |
| Channels per Circuit | 8 |
| Package / Case | 24-SSOP (0.209", 5.30mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the 74LVC4245ADB,112 is determined by the following critical parameters:
Primary Substitution Criteria:
- Translator Type: Voltage Level
- Channel Type: Bidirectional
- Number of Circuits: 1
- Channels per Circuit: 8
- Output Type: Tri-State
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
Secondary Considerations:
- Package compatibility (24-SSOP preferred for direct replacement; 24-TSSOP, 20-TSSOP, and 20-WLCSP acceptable with PCB layout adjustment)
- Operating temperature range (-40°C to 85°C or -40°C to 125°C)
- Voltage supply ranges (VCCA and VCCB)
- Product status (Active preferred over obsolete)
Substitute parts are grouped by package type and electrical compatibility. Parts with identical channel configuration and tri-state output capability are considered functionally equivalent.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Translator Type | Channels | Package / Case | Output Type | Operating Temp (°C) | VCCA Range (V) | VCCB Range (V) | Data Rate |
|---|---|---|---|---|---|---|---|---|---|---|
| 74LVC4245ADB,112 | Nexperia USA Inc. | Obsolete | Voltage Level | 8 | 24-SSOP | Tri-State | -40 to 125 | 1.5 ~ 5.5 | 1.5 ~ 3.6 | — |
| 74LVC4245APW,118 | Nexperia USA Inc. | Active | Voltage Level | 8 | 24-TSSOP | Tri-State | -40 to 125 | 1.5 ~ 5.5 | 1.5 ~ 3.6 | — |
| 74LVXC3245MTCX | onsemi | Active | Voltage Level | 8 | 24-TSSOP | Tri-State, Non-Inverted | -40 to 85 | 2.7 ~ 3.6 | 3 ~ 5.5 | — |
| ADG3308BCBZ-1-REEL | Analog Devices Inc. | Active | Voltage Level | 8 | 20-WLCSP (2.5x2) | Tri-State, Non-Inverted | -40 to 85 | 1.15 ~ 5.5 | 1.65 ~ 5.5 | 50Mbps |
| ADG3308BRUZ-REEL | Analog Devices Inc. | Active | Voltage Level | 8 | 20-TSSOP | Tri-State, Non-Inverted | -40 to 85 | 1.15 ~ 5.5 | 1.65 ~ 5.5 | 50Mbps |
| ADG3308BRUZ-REEL7 | Analog Devices Inc. | Active | Voltage Level | 8 | 20-TSSOP | Tri-State, Non-Inverted | -40 to 85 | 1.15 ~ 5.5 | 1.65 ~ 5.5 | 50Mbps |
| CLVCC3245AIDBREP | Texas Instruments | Active | Voltage Level | 8 | 24-SSOP | Tri-State, Non-Inverted | -40 to 85 | 2.3 ~ 3.6 | 3 ~ 5.5 | — |
| CLVCC3245AIPWREP | Texas Instruments | Active | Voltage Level | 8 | 24-TSSOP | Tri-State, Non-Inverted | -40 to 85 | 2.3 ~ 3.6 | 3 ~ 5.5 | — |
| FXL4245MPX | onsemi | Active | Voltage Level | 8 | 24-MLP (4.6x4.5) | Tri-State, Non-Inverted | -40 to 85 | 1.1 ~ 3.6 | 1.1 ~ 3.6 | — |
| FXLA108BQX | onsemi | Active | Voltage Level | 8 | 20-DQFN (2.5x4.5) | Tri-State, Non-Inverted | -40 to 85 | 1.1 ~ 3.6 | 1.1 ~ 3.6 | 140Mbps |
| FXLH42245MPX | Fairchild Semiconductor | Active | Voltage Level | 8 | 24-MLP (4.6x4.5) | Tri-State, Non-Inverted | -40 to 85 | 1.1 ~ 3.6 | 1.1 ~ 3.6 | — |
Engineering Selection Recommendations
Direct Package Replacement (24-SSOP): CLVCC3245AIDBREP (Texas Instruments) is the closest direct replacement, maintaining the 24-SSOP package footprint. This part is active and ROHS3 compliant. Voltage supply ranges differ: CLVCC3245AIDBREP operates at VCCA 2.3–3.6 V and VCCB 3–5.5 V, compared to the original 74LVC4245ADB,112 (VCCA 1.5–5.5 V, VCCB 1.5–3.6 V). Verify supply voltage compatibility in your application before selection.
Same Manufacturer, Active Status (24-TSSOP): 74LVC4245APW,118 (Nexperia USA Inc.) maintains identical electrical specifications and voltage ranges as the original part. The package changes from 24-SSOP to 24-TSSOP, requiring PCB layout modification. This part is active and ROHS3 compliant.
Broader Voltage Range Options: ADG3308BRUZ-REEL and ADG3308BRUZ-REEL7 (Analog Devices Inc.) offer extended voltage ranges (VCCA 1.15–5.5 V, VCCB 1.65–5.5 V) with auto-direction sensing and 50 Mbps data rate capability. These parts use 20-TSSOP packaging and require PCB redesign.
Low-Voltage Symmetric Supply: FXL4245MPX and FXLH42245MPX offer symmetric voltage ranges (1.1–3.6 V for both supplies) with power-off protection. These parts use 24-MLP packaging and are suitable for low-voltage applications.
All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity, matching the original part's compliance profile.
Frequently Asked Questions (FAQ)
Q: Can I use a 24-TSSOP package part as a direct replacement for the 24-SSOP original? A: Electrically, yes, if voltage ranges are compatible. However, 24-SSOP and 24-TSSOP have different physical dimensions and pin spacing. PCB layout modification is required. 24-SSOP is 0.209" wide; 24-TSSOP is 0.173" wide. Footprint redesign is necessary.
Q: What is the difference between 74LVC4245APW,118 and 74LVC4245ADB,112? A: Both are Nexperia 74LVC4245 series parts with identical electrical specifications. The primary difference is packaging: ADB,112 uses 24-SSOP; APW,118 uses 24-TSSOP. The APW variant is currently active in production.
Q: Are the ADG3308 parts compatible with the original 74LVC4245ADB,112? A: Functionally, yes. Both are 8-channel bidirectional voltage level translators with tri-state output. The ADG3308 series offers higher data rates (50 Mbps) and auto-direction sensing. Package differs (20-TSSOP or 20-WLCSP vs. 24-SSOP), requiring PCB redesign. Voltage ranges differ; verify compatibility with your supply voltages.
Q: What does "auto-direction sensing" mean in the ADG3308 parts? A: Auto-direction sensing automatically determines signal direction on each channel without requiring a separate direction control pin. This simplifies circuit design but requires verification that your application can operate with this feature.
Q: Can I use FXL4245MPX as a drop-in replacement? A: No. FXL4245MPX uses 24-MLP packaging (4.6x4.5 mm), which differs from the original 24-SSOP. Voltage ranges also differ (1.1–3.6 V symmetric vs. 1.5–5.5 V / 1.5–3.6 V asymmetric). PCB redesign and voltage verification are required.
Q: Why do some substitutes have lower operating temperature ranges (-40°C to 85°C vs. -40°C to 125°C)? A: Different manufacturers and product lines have different thermal specifications. Verify that the lower temperature range meets your application requirements before selection.
Q: Are all listed parts ROHS3 compliant? A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited), matching the original part's environmental compliance.
Q: What is the significance of "tri-state, non-inverted" output? A: Tri-state output allows the pin to be in high, low, or high-impedance (floating) states. Non-inverted means output logic matches input logic (no inversion). The original 74LVC4245ADB,112 specifies tri-state output; most substitutes maintain this specification.
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