GTL2003BQ,115 Equivalent & Substitute Parts

Part Overview

The GTL2003BQ,115 is a voltage level translator with bidirectional capability, featuring 1 circuit with 8 channels per circuit in a 20-DHVQFN (4.5x2.5) surface mount package. This NXP USA Inc. component operates across a wide voltage range (VCCA: 0.8V–5.5V, VCCB: 0.8V–5.5V) with auto-direction sensing and open drain output configuration. The part is currently obsolete, with 724 units available in new original stock. Due to its obsolete status, equivalent and substitute parts are necessary for ongoing design support and production continuity.

Key Parameters

Parameter	GTL2003BQ,115
Manufacturer	NXP USA Inc.
Translator Type	Voltage Level
Channel Type	Bidirectional
Number of Circuits	1
Channels per Circuit	8
Voltage - VCCA	0.8V ~ 5.5V
Voltage - VCCB	0.8V ~ 5.5V
Output Type	Open Drain
Operating Temperature	-40°C ~ 85°C (TA)
Features	Auto-Direction Sensing
Package / Case	20-VFQFN Exposed Pad
Supplier Device Package	20-DHVQFN (4.5x2.5)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the GTL2003BQ,115 is determined by the following critical parameters:

Translator Type: Voltage Level
Channel Type: Bidirectional
Number of Circuits: 1
Channels per Circuit: 8
Voltage Range Compatibility: VCCA and VCCB operating ranges must support the application requirements
Output Type: Open Drain or compatible tri-state configurations
Operating Temperature Range: -40°C to 85°C minimum
Package Compatibility: Surface mount packages with equivalent pin counts and footprints
Auto-Direction Sensing capability for seamless bidirectional operation

Substitute parts are grouped into two categories:

Parametric Equivalent (Same Base Product): GTL2003BQ,118 maintains identical electrical specifications and auto-direction sensing with different packaging designation.

Functional Equivalents (Different Manufacturers/Series): NVT2008BQ,115 and 74-series translators provide bidirectional voltage translation with compatible channel configurations, though with variations in voltage ranges and output types.

Parameter Comparison

Parameter	GTL2003BQ,115	GTL2003BQ,118	NVT2008BQ,115	74AVC8T245BQ,118	74AVC8T245PW-Q100J	74LVC4245APW-Q100J	74LVCH8T245BQ-Q10J	74LVXC3245MTCX
Manufacturer	NXP USA Inc.	NXP USA Inc.	NXP USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	onsemi
Translator Type	Voltage Level	Voltage Level	Voltage Level	Translation Transceiver	Translation Transceiver	Voltage Level	Translation Transceiver	Voltage Level
Channel Type	Bidirectional	Bidirectional	Bidirectional	8 Bit per Element	8 Bit per Element	Bidirectional	8 Bit per Element	Bidirectional
Channels per Circuit	8	8	8	8	8	8	8	8
Voltage - VCCA	0.8V ~ 5.5V	0.8V ~ 5.5V	1V ~ 3.6V	0.8V ~ 3.6V	0.8V ~ 3.6V	1.5V ~ 5.5V	1.2V ~ 5.5V	2.7V ~ 3.6V
Voltage - VCCB	0.8V ~ 5.5V	0.8V ~ 5.5V	1.8V ~ 5.5V	0.8V ~ 3.6V	0.8V ~ 3.6V	1.5V ~ 3.6V	1.2V ~ 5.5V	3V ~ 5.5V
Output Type	Open Drain	Open Drain	Open Drain, Push-Pull	3-State	3-State	Tri-State	3-State	Tri-State, Non-Inverted
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C
Package / Case	20-VFQFN Exposed Pad	20-VFQFN Exposed Pad	20-VFQFN Exposed Pad	24-VFQFN Exposed Pad	24-TSSOP	24-TSSOP	24-VFQFN Exposed Pad	24-TSSOP
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

GTL2003BQ,118 is the primary parametric equivalent, maintaining identical electrical specifications (VCCA: 0.8V–5.5V, VCCB: 0.8V–5.5V) and auto-direction sensing functionality. This part is active and ROHS3 compliant, making it the direct replacement for obsolete GTL2003BQ,115 applications.

NVT2008BQ,115 provides active product status with bidirectional voltage translation and 8-channel configuration. Voltage ranges are narrower (VCCA: 1V–3.6V, VCCB: 1.8V–5.5V) and output type includes push-pull capability in addition to open drain, requiring verification of application compatibility.

74-series translators (74AVC8T245, 74LVC4245, 74LVCH8T245) offer active status and extended operating temperature ranges (-40°C to 125°C). These parts feature 3-state or tri-state outputs and are available in multiple package options (20-DHVQFN, 24-DHVQFN, 24-TSSOP). Automotive-qualified variants (AEC-Q100) are available for 74AVC8T245BQ-Q100J, 74AVC8T245PW-Q100J, 74LVC4245APW-Q100J, and 74LVCH8T245BQ-Q10J.

74LVXC3245MTCX from onsemi provides bidirectional translation with tri-state output in 24-TSSOP package. Voltage ranges (VCCA: 2.7V–3.6V, VCCB: 3V–5.5V) are more restricted and operating temperature is limited to -40°C to 85°C.

Selection criteria: Verify voltage supply ranges match application requirements, confirm package footprint compatibility with PCB layout, and assess whether extended temperature range (-40°C to 125°C) or automotive qualification is necessary.

Frequently Asked Questions (FAQ)

Q: Can GTL2003BQ,118 directly replace GTL2003BQ,115?

A: Yes. GTL2003BQ,118 is a parametric equivalent with identical electrical specifications (0.8V–5.5V on both VCCA and VCCB), same 8-channel bidirectional configuration, auto-direction sensing, and open drain output. The difference is packaging designation only. Both are ROHS3 compliant with MSL 1.

Q: What is the key difference between GTL2003BQ,115 and NVT2008BQ,115?

A: NVT2008BQ,115 has narrower voltage ranges (VCCA: 1V–3.6V vs. 0.8V–5.5V; VCCB: 1.8V–5.5V vs. 0.8V–5.5V) and offers dual output types (open drain and push-pull). Both maintain 8-channel bidirectional translation with auto-direction sensing. NVT2008BQ,115 is active status, making it suitable for new designs where voltage constraints are acceptable.

Q: Why do 74-series translators have different package sizes (20-pin vs. 24-pin)?

A: The GTL2003BQ,115 uses a 20-DHVQFN package with 8 channels. The 74-series equivalents use 24-pin packages (24-DHVQFN or 24-TSSOP) to accommodate additional control pins or different pin configurations. PCB layout and footprint compatibility must be verified before substitution.

Q: Are automotive-qualified versions available?

A: Yes. 74AVC8T245BQ-Q100J, 74AVC8T245PW-Q100J, 74LVC4245APW-Q100J, and 74LVCH8T245BQ-Q10J carry AEC-Q100 automotive qualification. These are suitable for automotive applications requiring formal qualification documentation.

Q: What output type differences exist between substitutes?

A: GTL2003BQ,115 and GTL2003BQ,118 feature open drain output. NVT2008BQ,115 offers open drain and push-pull. 74-series parts use 3-state or tri-state outputs. Output type selection depends on application circuit requirements and pull-up resistor configuration.

Q: Can 74LVXC3245MTCX replace GTL2003BQ,115?

A: Substitution requires verification. 74LVXC3245MTCX has restricted voltage ranges (VCCA: 2.7V–3.6V, VCCB: 3V–5.5V) compared to GTL2003BQ,115 (0.8V–5.5V on both rails). If application supply voltages fall within these narrower ranges, substitution is feasible. Package is 24-TSSOP, requiring PCB layout changes.

Q: What is the significance of product status (Active vs. Obsolete)?

A: Obsolete parts (GTL2003BQ,115) have limited availability and no manufacturing support. Active parts ensure long-term supply chain continuity, design support, and compliance with current manufacturing standards. For new designs or production continuity, active equivalents are recommended.

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