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74ALVC16244MTDX Equivalent & Substitute Parts
Part Overview
The 74ALVC16244MTDX is a non-inverting buffer logic IC manufactured by onsemi, featuring 4 elements with 4 bits per element and 3-state output capability. This device operates across a supply voltage range of 1.65V to 3.6V and is housed in a 48-TSSOP package. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is essential for design continuity, long-term availability, and supply chain flexibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 4 |
| Number of Bits per Element | 4 |
| Output Type | 3-State |
| Current - Output High, Low | 24mA, 24mA |
| Voltage - Supply | 1.65V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package / Case | 48-TFSOP (0.240", 6.10mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitute parts for the 74ALVC16244MTDX are classified based on the following critical parameters that determine functional and mechanical compatibility:
Primary Substitution Criteria:
- Logic type (Buffer, Non-Inverting)
- Number of elements (4) and bits per element (4)
- Output type (3-State)
- Operating temperature range (-40°C ~ 85°C)
- Supply voltage compatibility (minimum 1.65V support)
- Package type (48-TSSOP or 48-SSOP variants)
- Output current capability (24mA or higher)
Grouping Categories:
Direct Equivalents (48-TSSOP Package): Parts maintaining identical package footprint, output current (24mA), and voltage range (1.65V ~ 3.6V). These include SN74ALVC16244ADGGR (Texas Instruments, Active status) and 74ALVC16244DGG,118 (Nexperia, Active status).
Compatible Alternatives (48-TSSOP Package, Reduced Output Current): Parts with 48-TSSOP packaging but lower output current (12mA). These include SN74ALVCH162244GR and 74ALVCH162244PAG8, suitable for applications not requiring maximum drive capability.
Package Variant Substitutes (48-SSOP Package): Parts with identical electrical specifications but different package footprint (48-BSSOP, 0.295" width). These include SN74ALVC16244ADL, SN74ALVC16244ADLR, SN74ALVCH162244DL, and SN74ALVCH162244DLR.
Extended Voltage Range Variants: Parts with lower minimum supply voltage (1.2V) such as 74ALVC16244DGG,118 (Nexperia), offering broader operational flexibility.
Parameter Comparison
| Part Number | Manufacturer | Series | Output Current (mA) | Voltage Supply (V) | Package | Product Status | MSL Rating |
|---|---|---|---|---|---|---|---|
| 74ALVC16244MTDX | onsemi | 74ALVC | 24, 24 | 1.65 ~ 3.6 | 48-TFSOP | Last Time Buy | 2 (1 Year) |
| SN74ALVC16244ADGGR | Texas Instruments | 74ALVC | 24, 24 | 1.65 ~ 3.6 | 48-TFSOP | Active | 1 (Unlimited) |
| 74ALVC16244DGG,118 | Nexperia USA Inc. | 74ALVC | 24, 24 | 1.2 ~ 3.6 | 48-TFSOP | Active | 1 (Unlimited) |
| 74ALVC162244PAG | IDT | 74ALVC | 24, 24 | 2.7 ~ 3.6 | 48-TFSOP | Active | Not specified |
| SN74ALVCH162244GR | Texas Instruments | 74ALVCH | 12, 12 | 1.65 ~ 3.6 | 48-TFSOP | Active | 1 (Unlimited) |
| 74ALVCH162244PAG8 | IDT | 74ALVCH | 12, 12 | 2.7 ~ 3.6 | 48-TFSOP | Active | Not specified |
| SN74ALVC16244ADL | Texas Instruments | 74ALVC | 24, 24 | 1.65 ~ 3.6 | 48-BSSOP | Active | 1 (Unlimited) |
| SN74ALVC16244ADLR | Texas Instruments | 74ALVC | 24, 24 | 1.65 ~ 3.6 | 48-BSSOP | Active | 1 (Unlimited) |
| SN74ALVCH162244DL | Texas Instruments | 74ALVCH | 12, 12 | 1.65 ~ 3.6 | 48-BSSOP | Active | 1 (Unlimited) |
| SN74ALVCH162244DLR | Texas Instruments | 74ALVCH | 12, 12 | 1.65 ~ 3.6 | 48-BSSOP | Active | 1 (Unlimited) |
Engineering Selection Recommendations
For Direct Pin-Compatible Replacement (48-TSSOP Package):
SN74ALVC16244ADGGR from Texas Instruments is the primary recommendation. This part maintains identical electrical specifications (24mA output current, 1.65V ~ 3.6V supply range) and package footprint. Texas Instruments is an Active status manufacturer with established supply continuity. The improved MSL rating (1, Unlimited vs. 2, 1 Year) provides superior moisture handling for long-term storage and assembly processes.
74ALVC16244DGG,118 from Nexperia USA Inc. offers an alternative with extended lower voltage support (1.2V minimum), beneficial for ultra-low-power applications. Active product status ensures ongoing availability.
For Applications Tolerating Reduced Output Current:
SN74ALVCH162244GR (Texas Instruments) and 74ALVCH162244PAG8 (IDT) provide 12mA output current in 48-TSSOP packaging. These are suitable for designs not requiring maximum drive capability and offer Active status with established supply chains.
For Package Variant Implementations (48-BSSOP):
SN74ALVC16244ADL and SN74ALVC16244ADLR maintain full 24mA output current with identical electrical performance but require PCB layout modification due to different package dimensions (0.295" vs. 0.240" width). Both are Active status from Texas Instruments.
Compliance Considerations:
All recommended substitutes maintain ROHS3 compliance and EAR99 export classification consistent with the original part. MSL ratings of 1 (Unlimited) on active alternatives provide superior reliability compared to the original MSL 2 rating.
Frequently Asked Questions (FAQ)
Q: Can SN74ALVC16244ADGGR be used as a direct replacement for 74ALVC16244MTDX without PCB modifications?
A: Yes. Both parts share identical 48-TFSOP package dimensions (0.240", 6.10mm width), pin configuration, and electrical specifications (24mA output current, 1.65V ~ 3.6V supply). No PCB layout changes are required.
Q: What is the difference between 74ALVC and 74ALVCH series parts?
A: The primary difference is output current capability. 74ALVC series provides 24mA output current (high drive), while 74ALVCH series provides 12mA output current (reduced drive). Both maintain identical logic function, package options, and voltage ranges. Selection depends on load requirements.
Q: Why do some substitutes have a minimum supply voltage of 2.7V instead of 1.65V?
A: IDT parts (74ALVC162244PAG and 74ALVCH162244PAG8) specify 2.7V minimum supply voltage. These are suitable only for applications operating at 2.7V or higher. For designs requiring 1.65V operation, use Texas Instruments or Nexperia alternatives.
Q: Are 48-SSOP package variants (SN74ALVC16244ADL, SN74ALVC16244ADLR) electrically identical to 48-TSSOP versions?
A: Yes, electrically identical. The difference is package footprint only. 48-BSSOP (0.295" width) is wider than 48-TFSOP (0.240" width). PCB layout and component placement must be modified to accommodate the larger package.
Q: What does MSL rating mean for component selection?
A: MSL (Moisture Sensitivity Level) indicates how long a component can be stored after moisture absorption before assembly. MSL 1 (Unlimited) parts have no time restrictions and superior moisture tolerance. MSL 2 (1 Year) parts require assembly within one year of packaging. Active substitutes with MSL 1 rating provide better long-term storage flexibility.
Q: Is the onsemi 74ALVC16244MTDX still available for new designs?
A: No. The part is in Last Time Buy status, indicating end-of-life production. Active alternatives from Texas Instruments, Nexperia, or IDT should be selected for new designs to ensure long-term supply availability.
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