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SN74LVC8T245MPWREP Equivalent & Substitute Parts
Part Overview
The SN74LVC8T245MPWREP is a translation transceiver logic IC manufactured by Texas Instruments, designed for 8-bit bidirectional signal translation with 3-state output capability. This device operates across a wide supply voltage range of 1.65V to 5.5V and is housed in a 24-TSSOP surface mount package. The part is currently in active production status with 1983 units in stock.
Substitute parts are necessary when the original SN74LVC8T245MPWREP becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design specifications call for different voltage operating ranges or automotive-grade qualifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SN74LVC8T245MPWREP |
| Manufacturer | Texas Instruments |
| Logic Type | Translation Transceiver |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Output Type | 3-State |
| Current - Output High, Low | 32mA, 32mA |
| Voltage - Supply | 1.65V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Package / Case | 24-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| Product Status | Active |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the SN74LVC8T245MPWREP is determined by the following critical parameters:
Primary Substitution Criteria:
- Logic Type: Translation Transceiver
- Number of Elements: 1
- Number of Bits per Element: 8
- Output Type: 3-State
- Mounting Type: Surface Mount
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
Secondary Compatibility Factors:
- Voltage Supply Range: Must encompass or be compatible with 1.65V ~ 5.5V
- Current Output Capability: 32mA minimum for both high and low states
- Operating Temperature Range: Must support -40°C ~ 125°C minimum
- Package Format: 24-TSSOP preferred; alternative packages acceptable if PCB layout permits
Substitute parts are grouped into three categories based on these parameters: direct pin-compatible replacements in 24-TSSOP packaging, functionally equivalent parts in alternative packages, and voltage-specialized variants for specific application requirements.
Parameter Comparison
| Parameter | SN74LVC8T245MPWREP | 74LVC8T245PW,118 | 74LVC8T245PW-Q100J | 74LVCH8T245PW-Q10J | 74AVC8T245BQ,118 | 74AVC8T245PW:112 | 74LVX3245MTCX |
|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Nexperia USA Inc. | Nexperia USA Inc. | Nexperia USA Inc. | Nexperia USA Inc. | Nexperia USA Inc. | onsemi |
| Logic Type | Translation Transceiver | Translation Transceiver | Translation Transceiver | Translation Transceiver | Translation Transceiver | Translation Transceiver | Voltage Level Translator |
| Number of Bits per Element | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Output Type | 3-State | 3-State | 3-State | 3-State | 3-State | 3-State | Tri-State, Non-Inverted |
| Current - Output High, Low | 32mA, 32mA | 32mA, 32mA | 32mA, 32mA | 32mA, 32mA | 12mA, 12mA | 12mA, 12mA | Not specified |
| Voltage - Supply | 1.65V ~ 5.5V | 1.2V ~ 5.5V | 1.2V ~ 5.5V | 1.2V ~ 5.5V | 0.8V ~ 3.6V | 0.8V ~ 3.6V | VCCA: 2.7V ~ 3.6V; VCCB: 4.5V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 85°C |
| Package / Case | 24-TSSOP | 24-TSSOP | 24-TSSOP | 24-TSSOP | 24-VFQFN Exposed Pad | 24-TSSOP | 24-TSSOP |
| Product Status | Active | Active | Active | Active | Active | Obsolete | Active |
| Grade | Standard | Standard | Automotive | Automotive | Standard | Standard | Standard |
| Qualification | None specified | None specified | AEC-Q100 | AEC-Q100 | None specified | None specified | None specified |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Direct Pin-Compatible Replacements (24-TSSOP Package):
The 74LVC8T245PW,118 and 74LVC8T245PW-Q100J from Nexperia USA Inc. are functionally equivalent to the SN74LVC8T245MPWREP. Both maintain the same 24-TSSOP package format, 8-bit configuration, and 32mA output current specification. The 74LVC8T245PW-Q100J carries AEC-Q100 automotive qualification, making it suitable for automotive applications requiring extended temperature operation and reliability certification.
Automotive-Grade Alternative:
The 74LVCH8T245PW-Q10J provides automotive-grade qualification (AEC-Q100) with identical electrical specifications to the original part. This variant is recommended for designs requiring automotive compliance documentation and qualification traceability.
Lower Voltage Supply Applications:
The 74AVC8T245BQ,118 and 74AVC8T245PW:112 operate at reduced supply voltages (0.8V ~ 3.6V) with lower output current (12mA). These parts are suitable only for applications where the lower voltage range is acceptable and reduced drive current meets system requirements. The 74AVC8T245PW:112 is marked as obsolete and should be avoided for new designs.
Voltage Level Translation Applications:
The 74LVX3245MTCX from onsemi functions as a bidirectional voltage level translator with dual supply voltage capability (VCCA: 2.7V ~ 3.6V; VCCB: 4.5V ~ 5.5V). This part is suitable for applications requiring translation between different voltage domains but operates at a reduced temperature range (-40°C ~ 85°C) compared to the original part.
Recommended Primary Substitutes:
- 74LVC8T245PW,118 (standard industrial applications)
- 74LVC8T245PW-Q100J (automotive applications requiring AEC-Q100 certification)
- 74LVCH8T245PW-Q10J (automotive applications with extended qualification requirements)
Frequently Asked Questions (FAQ)
Q: Can the 74AVC8T245BQ,118 be used as a direct replacement for the SN74LVC8T245MPWREP?
A: The 74AVC8T245BQ,118 is functionally compatible but with important limitations. It operates at a reduced supply voltage range (0.8V ~ 3.6V) versus the original part's 1.65V ~ 5.5V range, and provides lower output current (12mA versus 32mA). Substitution is valid only if your application operates within the 0.8V ~ 3.6V range and does not require 32mA output current.
Q: What is the difference between 74LVC8T245PW,118 and 74LVC8T245PW-Q100J?
A: Both parts are electrically identical with the same supply voltage range (1.2V ~ 5.5V), output current (32mA), and 24-TSSOP package. The primary difference is that 74LVC8T245PW-Q100J carries AEC-Q100 automotive qualification with extended temperature operation (-40°C ~ 125°C). Select the Q100J variant for automotive applications requiring qualification documentation.
Q: Is the 74LVX3245MTCX a suitable replacement?
A: The 74LVX3245MTCX is functionally compatible for 8-bit translation applications but operates as a bidirectional voltage level translator with dual supply pins (VCCA and VCCB). It is suitable only if your application requires translation between two different voltage domains. Additionally, its operating temperature range is limited to -40°C ~ 85°C, which is narrower than the original part's -55°C ~ 125°C range.
Q: Why is the 74AVC8T245PW:112 listed as obsolete?
A: The 74AVC8T245PW:112 is marked as obsolete by the manufacturer. While 854 units remain in stock, this part should not be selected for new designs. Use the active 74AVC8T245BQ,118 variant if the reduced voltage range (0.8V ~ 3.6V) is acceptable for your application.
Q: Can I use the 74LVCH8T245PW-Q10J in non-automotive applications?
A: Yes. The 74LVCH8T245PW-Q10J is electrically and functionally identical to the standard 74LVC8T245PW,118. The AEC-Q100 qualification is an additional certification that does not restrict its use in non-automotive applications. It is a valid substitute for any application requiring the 24-TSSOP package and 32mA output current.
Q: What packaging alternatives are available if 24-TSSOP is not suitable?
A: The 74AVC8T245BQ,118 is available in 24-VFQFN Exposed Pad package format. However, this requires PCB layout modification and is recommended only when 24-TSSOP is unavailable and the reduced voltage range (0.8V ~ 3.6V) and output current (12mA) are acceptable for your application.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts carry ROHS3 compliance certification and maintain MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original SN74LVC8T245MPWREP specifications.
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