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74ALVC2245WM Equivalent & Substitute Parts
Part Overview
The 74ALVC2245WM is a non-inverting transceiver logic IC manufactured by onsemi, designed for 8-bit data bus applications with 3-state output capability. Operating across a supply voltage range of 1.65V to 3.6V, this component is classified as obsolete, necessitating identification of functionally equivalent active alternatives for new designs and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Logic Type | Transceiver, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Output Type | 3-State |
| Current - Output High, Low | 24mA, 24mA |
| Voltage - Supply | 1.65V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict equivalence across the following critical parameters:
- Logic Type: Transceiver, Non-Inverting
- Number of Elements: 1
- Number of Bits per Element: 8
- Output Type: 3-State
- Current - Output High, Low: 24mA, 24mA
- Voltage - Supply: 1.65V ~ 3.6V
- Operating Temperature: -40°C ~ 85°C (TA)
- Mounting Type: Surface Mount
Substitute parts are grouped into two categories based on package configuration:
Group 1: 20-SOIC (0.295", 7.50mm Width) – Direct pin-compatible replacements with identical package dimensions.
Group 2: 20-SO (0.209", 5.30mm Width) – Functionally equivalent but with different package width; requires PCB layout verification.
Parameter Comparison
| Part Number | Manufacturer | Series | Product Status | Package / Case | Voltage - Supply | Current - Output (mA) | Operating Temp | Packaging Type |
|---|---|---|---|---|---|---|---|---|
| 74ALVC2245WM | onsemi | 74ALVC | Obsolete | 20-SOIC (0.295", 7.50mm) | 1.65V ~ 3.6V | 24, 24 | -40°C ~ 85°C | Surface Mount |
| 74ALVC245D,118 | NXP USA Inc. | 74ALVC | Active | 20-SOIC (0.295", 7.50mm) | 1.65V ~ 3.6V | 24, 24 | -40°C ~ 85°C | Surface Mount |
| SN74ALVC245DW | Texas Instruments | 74ALVC | Active | 20-SOIC (0.295", 7.50mm) | 1.65V ~ 3.6V | 24, 24 | -40°C ~ 85°C | Surface Mount |
| SN74ALVC245DWR | Texas Instruments | 74ALVC | Active | 20-SOIC (0.295", 7.50mm) | 1.65V ~ 3.6V | 24, 24 | -40°C ~ 85°C | Surface Mount |
| SN74ALVC245NS | Texas Instruments | 74ALVC | Active | 20-SO (0.209", 5.30mm) | 1.65V ~ 3.6V | 24, 24 | -40°C ~ 85°C | Surface Mount |
| SN74ALVC245NSR | Texas Instruments | 74ALVC | Active | 20-SO (0.209", 5.30mm) | 1.65V ~ 3.6V | 24, 24 | -40°C ~ 85°C | Surface Mount |
| SN74ALVCH245DW | Texas Instruments | 74ALVCH | Active | 20-SOIC (0.295", 7.50mm) | 1.65V ~ 3.6V | 24, 24 | -40°C ~ 85°C | Surface Mount |
| SN74ALVCH245DWR | Texas Instruments | 74ALVCH | Active | 20-SOIC (0.295", 7.50mm) | 1.65V ~ 3.6V | 24, 24 | -40°C ~ 85°C | Surface Mount |
Engineering Selection Recommendations
All identified substitute parts maintain electrical and functional equivalence to the 74ALVC2245WM across the specified operating parameters. Selection should prioritize active product status to ensure long-term availability and supply chain stability.
For 20-SOIC (0.295", 7.50mm) package applications:
- SN74ALVC245DWR (Texas Instruments, Tape & Reel) – 2200 pcs in stock
- SN74ALVC245DW (Texas Instruments, Tube) – 1555 pcs in stock
- 74ALVC245D,118 (NXP USA Inc., Bulk) – 9086 pcs in stock
- SN74ALVCH245DWR (Texas Instruments, Tape & Reel) – 2871 pcs in stock
- SN74ALVCH245DW (Texas Instruments, Tube) – 1285 pcs in stock
For 20-SO (0.209", 5.30mm) package applications:
- SN74ALVC245NSR (Texas Instruments, Tape & Reel) – 2530 pcs in stock
- SN74ALVC245NS (Texas Instruments) – 947 pcs in stock
All substitute parts comply with RoHS3 and REACH requirements where specified, with MSL rating of 1 (Unlimited) for moisture sensitivity.
Frequently Asked Questions (FAQ)
Q: Can SN74ALVC245NS be used as a direct replacement for 74ALVC2245WM?
A: SN74ALVC245NS is functionally equivalent but uses a different package width (20-SO 0.209" vs. 20-SOIC 0.295"). Electrical parameters are identical. PCB layout modification is required for package substitution.
Q: What is the difference between 74ALVC and 74ALVCH series?
A: Both series maintain identical electrical specifications for voltage supply, operating temperature, and output current. The 74ALVCH series represents an enhanced variant within the same functional family. Both are suitable substitutes based on provided parameters.
Q: Are packaging options (Tube, Tape & Reel, Bulk) interchangeable?
A: Packaging options affect handling, storage, and assembly processes but do not alter electrical or functional characteristics. Selection depends on production volume and assembly equipment compatibility.
Q: Why is the original 74ALVC2245WM marked as obsolete?
A: Obsolete status indicates the manufacturer has discontinued production. Active alternatives with identical electrical specifications are available from multiple manufacturers, ensuring design continuity without functional modification.
Q: Do all substitute parts have the same moisture sensitivity level?
A: Yes, all identified substitutes maintain MSL rating of 1 (Unlimited), matching the original part's moisture handling requirements.
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