NDQ48PFQ-7NET Equivalent & Substitute Parts

Part Overview

The NDQ48PFQ-7NET is a DDR4 4Gbit SDRAM memory integrated circuit manufactured by Insignis Technology Corporation. This volatile memory device operates at 1.333 GHz with an 18 ns access time and is housed in a 78-FBGA (7.5x10.6mm) surface mount package. The component is classified as Active product status with full RoHS3 compliance and MSL Level 3 rating.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling direct replacement in applications where the main part becomes unavailable or when inventory constraints require alternative sourcing.

Key Parameters

Parameter	Value
Memory Type	Volatile DRAM
Technology	SDRAM - DDR4
Memory Size	4Gbit
Memory Organization	512M x 8
Memory Interface	POD
Clock Frequency	1.333 GHz
Access Time	18 ns
Write Cycle Time	15 ns
Voltage Supply Range	1.14V ~ 1.26V
Operating Temperature	0°C ~ 95°C (TC)
Package Type	78-TFBGA
Package Dimensions	7.5x10.6mm
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the NDQ48PFQ-7NET is determined by strict alignment of the following critical parameters:

Memory Specifications: The substitute part must maintain identical memory size (4Gbit), organization (512M x 8), technology (SDRAM - DDR4), and interface type (POD).

Electrical Characteristics: Clock frequency (1.333 GHz), access time (18 ns), write cycle time (15 ns), and supply voltage range (1.14V ~ 1.26V) must match exactly.

Thermal Performance: Operating temperature range (0°C ~ 95°C TC) must be equivalent or superior.

Package Compatibility: The substitute must use the 78-TFBGA package type with surface mount mounting. Minor dimensional variations in package footprint (7.5x10.6mm versus 7.5x11mm) are acceptable within standard PCB layout tolerances for BGA components.

Compliance Requirements: RoHS3 compliance and MSL Level 3 rating must be maintained.

The AS4C512M8D4A-75BCN from Alliance Memory, Inc. satisfies all substitution criteria and is classified as a parametric equivalent.

Parameter Comparison

Parameter	NDQ48PFQ-7NET (Insignis)	AS4C512M8D4A-75BCN (Alliance Memory)	Match Status
Memory Type	Volatile DRAM	Volatile DRAM	Identical
Technology	SDRAM - DDR4	SDRAM - DDR4	Identical
Memory Size	4Gbit	4Gbit	Identical
Memory Organization	512M x 8	512M x 8	Identical
Memory Interface	POD	POD	Identical
Clock Frequency	1.333 GHz	1.333 GHz	Identical
Access Time	18 ns	18 ns	Identical
Write Cycle Time	15 ns	15 ns	Identical
Voltage Supply Range	1.14V ~ 1.26V	1.14V ~ 1.26V	Identical
Operating Temperature	0°C ~ 95°C (TC)	0°C ~ 95°C (TC)	Identical
Package Type	78-TFBGA	78-TFBGA	Identical
Package Dimensions	7.5x10.6mm	7.5x11mm	Compatible
Mounting Type	Surface Mount	Surface Mount	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
MSL Rating	3 (168 Hours)	3 (168 Hours)	Identical

Engineering Selection Recommendations

The AS4C512M8D4A-75BCN qualifies as a direct parametric equivalent to the NDQ48PFQ-7NET based on complete alignment of electrical, thermal, and mechanical specifications. Both components maintain Active product status and full RoHS3 compliance with identical MSL Level 3 ratings.

The package dimension variance (7.5x10.6mm versus 7.5x11mm) represents a 0.4mm difference in one axis and falls within standard PCB layout tolerances for 78-FBGA components. This minor dimensional difference does not affect electrical performance or thermal characteristics.

Selection between these parts should be based on availability, lead time, and supply chain requirements. Both components are suitable for direct substitution in DDR4 memory applications requiring 4Gbit capacity at 1.333 GHz operation.

Frequently Asked Questions (FAQ)

Q: Can the AS4C512M8D4A-75BCN replace the NDQ48PFQ-7NET in existing designs?

A: Yes. The AS4C512M8D4A-75BCN is a parametric equivalent with identical electrical specifications, operating frequency, access time, and voltage requirements. The 0.4mm package dimension difference is within standard BGA layout tolerances and does not affect PCB compatibility.

Q: Are there differences in compliance or environmental ratings?

A: No. Both components maintain RoHS3 compliance and MSL Level 3 (168 Hours) ratings. Operating temperature ranges are identical at 0°C to 95°C (TC).

Q: What is the significance of the POD memory interface?

A: POD (Pseudo Open Drain) is the interface standard for these DDR4 memory devices. Both the main part and substitute use identical POD interface specifications, ensuring electrical compatibility at the signal level.

Q: Does the package dimension difference affect thermal performance?

A: No. The 0.4mm difference in package length does not impact thermal characteristics. Both components operate within the same thermal envelope and maintain identical access times and power dissipation profiles.

Q: Are inventory levels a consideration for substitution?

A: Inventory status is provided for reference only. The NDQ48PFQ-7NET has 862 pieces in stock, while the AS4C512M8D4A-75BCN has 807 pieces available. Substitution decisions should be based on parametric equivalence and application requirements rather than inventory levels alone.

Q: What is the base product number for the Alliance Memory part?

A: The base product number for the AS4C512M8D4A-75BCN is AS4C512, indicating the 512Mbit core memory architecture used in this 4Gbit configuration.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message