74AUP1G125GW
Functional · Fit score 60
Single buffer/line driver (3-state)
Package: SOT353-1 | Series: AUP
Nr of pins: 5; Logic switching levels: CMOS; VCC(A) (V): n.a.; VCC(B) (V): n.a.
Open Hardware Cross Reference
NC7SZ125
Functional low-power alternative to the obsolete onsemi NC7SZ125. 74AUP1G125GW is the Nexperia AUP (Advanced Ultra-low Power) single bus buffer gate in SOT-23-5 with identical pinout to NC7SZ125. Operates 0.8 V to 3.6 V VCC, <1 uA quiescent current, ~0.9 ns propagation delay. Same 3-state buffer function, lower power envelope than NC7SZ's UHS family. Use as drop-in for battery-powered and low-leakage applications where NC7SZ's UHS current is excessive.
Target product summary
NC7SZ125
NC7SZ125 is onsemi's single TinyLogic UHS buffer / line driver with three-state output in SOT-23-5. Fabricated in advanced CMOS, propagation delay ~2.0 ns at 5 V, quiescent current <1 µA. onsemi has marked this family 'DISCONTINUED: These devices are not available' in the official datasheet Rev. 4 (Page 5). For new designs use SN74LVC1G125DBVR (TI) which is the industry-standard pin-compatible drop-in.
Series: TinyLogic UHS | Datasheet landing page: https://www.trustcompo.com/product/detail/TCE000056779-NC7SZ125/datasheet
Replacement candidates
SN74AHC1G125DBVR
Functional · Fit score 60
Single 2 V to 5.5 V bus buffer gate with 3-state output, SOT-23-5. Functional alternative to onsemi NC7SZ125 with higher drive strength.
Package: SOT-23-5 | Series: SN74AHC1G125
Mounting Type: Surface Mount; Pin Count: 5; Output Type: 3-State; Manufacturer: Texas Instruments
SN74AUP1G125DBVR
P2P · Fit score 80
Single low-power single bus buffer gate with 3-state output, 0.8 V to 3.3 V VCC, SOT-23-5. P2P drop-in for onsemi NC7SZ125 in ultra-low-power applications.
Package: SOT-23-5 | Series: SN74AUP1G125
Number of Channels: 1; Function: Single low-power bus buffer gate with 3-state output; Propagation Delay (tPD): 0.9 ns (typical at 3.3 V); Quiescent Current (ICC): <1 uA (max)
74LVC1G125GV
P2P · Fit score 80
Single buffer/line driver; TTL enabled (3-state)
Package: SOT753 | Series: LVC
Function: Buffers/inverters/drivers; Nr of pins: 5; VCC(B) (V): n.a.; VCC(A) (V): n.a.
SN74LVC1G125DBVR
P2P · Fit score 100
Single 1.65 V to 5.5 V bus buffer gate with 3-state output, SOT-23-5. Pin-compatible direct P2P replacement for onsemi NC7SZ125.
Package: SOT-23-5 | Series: SN74LVC1G125
RoHS Status: RoHS Compliant; HTSUS: 8542.39.0001; ECCN: EAR99; Mounting Type: Surface Mount
Parameter comparison
| Attribute | NC7SZ125 | 74AUP1G125GW | SN74AHC1G125DBVR | SN74AUP1G125DBVR | 74LVC1G125GV | SN74LVC1G125DBVR |
|---|---|---|---|---|---|---|
| Number of Channels | 1 | - | 1 | 1 | - | 1 |
| Function | Single buffer / line driver | Buffers/inverters/drivers | Single bus buffer gate with 3-state output | Single low-power bus buffer gate with 3-state output | Buffers/inverters/drivers | Single bus buffer gate with 3-state output |
| Propagation Delay (tPD) | 2.0 ns (typical at 5 V) | - | 3.5 ns (typical at 5 V) | 0.9 ns (typical at 3.3 V) | - | 2.5 ns (typical at 3.3 V) |
| Part Number | NC7SZ125 | - | SN74AHC1G125DBVR | SN74AUP1G125DBVR | - | SN74LVC1G125DBVR |
| Logic Family | TinyLogic UHS (CMOS) | - | AHC (Advanced High-Speed CMOS) | AUP (CMOS) | - | LVC (CMOS) |
| Supply Voltage (VCC) | 1.65 V to 5.5 V | - | 2 V to 5.5 V | 0.8 V to 3.6 V | - | 1.65 V to 5.5 V |
| Quiescent Current (ICC) | <1 uA | - | 10 uA (max) | <1 uA (max) | - | 10 uA (max) |
| RoHS Status | RoHS Compliant | - | - | - | - | RoHS Compliant |
| HTSUS | 8542.39.0001 | - | - | - | - | 8542.39.0001 |
| ECCN | EAR99 | - | - | - | - | EAR99 |
| Mounting Type | Surface Mount | - | Surface Mount | Surface Mount | - | Surface Mount |
| Manufacturer | ON Semiconductor | Nexperia | Texas Instruments | Texas Instruments | Nexperia | Texas Instruments |
| Pin Count | 5 | - | 5 | 5 | - | 5 |
| Output Type | 3-State | - | 3-State | 3-State | - | 3-State |
| Operating Temperature | -40 C to +85 C | - | -40 C to +85 C | -40 C to +85 C | - | -40 C to +125 C |
| Lifecycle Status | Discontinued (2025) | - | Active | Active | - | Active |
| Package / Case | SOT-23-5 (M5X suffix) | - | SOT-23-5 (DBV suffix) | SOT-23-5 (DBV suffix) | - | SOT-23-5 (DBV suffix) |
| Nr of pins | - | 5 | - | - | 5 | - |
Engineer review boundary
This page is designed for first-pass shortlist work. Treat the candidates below as engineering starting points, then verify footprint compatibility, electrical limits, lifecycle timing, compliance requirements, and qualification scope before approving a BOM change. For official sample requests, full data verification, and legal warranty support, please consult through TrustCompo Inquiry Channel.
Evidence summary
- NC7SZ125 datasheet (catalog-datasheet)
Primary manufacturer or catalog datasheet for the target part used as a first-pass reference point. Signals: datasheet, target-part. - NC7SZ125 lifecycle note (catalog-lifecycle)
TrustCompo catalog currently marks the target part lifecycle as at-risk. Reconfirm against current manufacturer notices before release. Signals: at-risk. - SN74AHC1G125DBVR datasheet (alternative-datasheet)
Functional alternative to the obsolete onsemi NC7SZ125. SN74AHC1G125DBVR is the TI AHC (Advanced High-Speed CMOS) single bus buffer gate in SOT-23-5 with the same pinout and 3-state output enable as NC7SZ125. AHC family operates at 2 V to 5.5 V VCC and provides higher output driv Signals: functional. - SN74AUP1G125DBVR datasheet (alternative-datasheet)
Pin-to-pin P2P drop-in for the obsolete onsemi NC7SZ125 from TI. SN74AUP1G125DBVR is the TI AUP-family single bus buffer gate in SOT-23-5 with identical pinout (1=OE, 2=A, 3=GND, 4=Y, 5=VCC). Listed in TI's Little Logic Guide as the cross-reference for the NC7SZ family. Lower-pow Signals: p2p. - SN74LVC1G125DBVR datasheet (alternative-datasheet)
Pin-to-pin P2P drop-in for the obsolete onsemi NC7SZ125. Same SOT-23-5 footprint, same pinout (1=OE, 2=A, 3=GND, 4=Y, 5=VCC), same 3-state buffer function, similar propagation delay (~2.5 ns at 3.3 V vs ~2.0 ns for NC7SZ125). The SN74LVC1G125 family from TI is the industry-standa Signals: p2p.
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Verification notes
Cross-reference pages are useful starting points, not automatic design approvals. Always re-check footprint, electrical limits, lifecycle timing, qualification documents, firmware implications, and supply-chain constraints before releasing a BOM change. For official sample requests, full data verification, and legal warranty support, please consult through TrustCompo Inquiry Channel.