PC28F00AP33EFA Equivalent & Substitute Parts

Part Overview

The PC28F00AP33EFA is a 1Gbit NOR Flash memory IC manufactured by Micron Technology Inc., designed for parallel interface applications requiring high-density non-volatile storage. This component features a 64-EasyBGA (8x10) package and operates across a supply voltage range of 2.3V to 3.6V with an access time of 95 ns.

The PC28F00AP33EFA is classified as Obsolete. Locating equivalent or substitute components is necessary to support legacy system maintenance, design updates, or when original inventory becomes unavailable. Substitute parts must maintain functional compatibility across memory capacity, interface type, and electrical specifications.

Key Parameters

Parameter	Value
Memory Size	1Gbit
Memory Format	FLASH
Technology	FLASH - NOR
Memory Organization	64M x 16
Memory Interface	Parallel
Access Time	95 ns
Clock Frequency	52 MHz
Voltage - Supply	2.3V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	64-TBGA
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the PC28F00AP33EFA is determined by the following critical parameters:

Memory Capacity: 1Gbit total storage
Memory Technology: FLASH - NOR type
Memory Interface: Parallel interface architecture
Memory Organization: Support for 64M x 16 configuration
Access Time: 95 ns maximum
Supply Voltage Range: Compatibility within 2.3V to 3.6V envelope
Operating Temperature Range: -40°C to 85°C
Package Type: Surface mount BGA configuration
Compliance: ROHS3 and REACH compliance status

The MT28EW01GABA1HPC-0SIT qualifies as a substitute based on matching memory capacity (1Gbit), technology (FLASH - NOR), interface type (Parallel), and core electrical specifications. Package differences and voltage range variations are noted in the parameter comparison.

Parameter Comparison

Parameter	PC28F00AP33EFA	MT28EW01GABA1HPC-0SIT
Manufacturer	Micron Technology Inc.	Micron Technology Inc.
Memory Size	1Gbit	1Gbit
Memory Format	FLASH	FLASH
Technology	FLASH - NOR	FLASH - NOR
Memory Organization	64M x 16	128M x 8, 64M x 16
Memory Interface	Parallel	Parallel
Access Time	95 ns	95 ns
Write Cycle Time - Word, Page	95 ns	60 ns
Voltage - Supply	2.3V ~ 3.6V	2.7V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	64-TBGA	64-LBGA
Mounting Type	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)
Product Status	Obsolete	Active

Engineering Selection Recommendations

The MT28EW01GABA1HPC-0SIT is an active product from the same manufacturer (Micron Technology Inc.) and maintains core functional equivalence to the obsolete PC28F00AP33EFA across memory capacity, technology, interface type, and operating temperature range. Both components are ROHS3 compliant and carry identical MSL ratings.

Key considerations for selection:

Voltage Range: The substitute operates within 2.7V to 3.6V, compared to the original 2.3V to 3.6V. Systems designed for the lower 2.3V to 2.7V range require verification of actual operating conditions.
Write Cycle Time: The substitute offers improved write performance (60 ns versus 95 ns), which does not negatively impact compatibility.
Package Transition: The substitute uses 64-LBGA (11x13) versus the original 64-TBGA. PCB layout and footprint redesign is required.
Product Status: The substitute is an active product with current availability, addressing the obsolescence of the original component.

Frequently Asked Questions (FAQ)

Q: Can the MT28EW01GABA1HPC-0SIT directly replace the PC28F00AP33EFA without PCB modifications?

A: No. While both components are 64-pin BGA packages, the PC28F00AP33EFA uses 64-TBGA (8x10) and the substitute uses 64-LBGA (11x13). Different ball grid array dimensions require PCB footprint redesign and layout changes.

Q: What is the impact of the voltage range difference (2.3V to 3.6V versus 2.7V to 3.6V)?

A: The substitute does not support operation below 2.7V. If the original design operates the PC28F00AP33EFA at voltages between 2.3V and 2.7V, the MT28EW01GABA1HPC-0SIT is not suitable without system-level voltage adjustment.

Q: Are both components compliant with the same environmental and regulatory standards?

A: Yes. Both the PC28F00AP33EFA and MT28EW01GABA1HPC-0SIT are ROHS3 compliant, REACH unaffected, and carry MSL 3 (168 Hours) ratings. Both operate across -40°C to 85°C.

Q: Does the faster write cycle time of the substitute affect compatibility?

A: No. The substitute's 60 ns write cycle time is faster than the original 95 ns specification. This improvement does not create compatibility issues and may enhance system performance.

Q: What is the memory organization difference between the two parts?

A: The PC28F00AP33EFA is organized as 64M x 16. The MT28EW01GABA1HPC-0SIT supports both 128M x 8 and 64M x 16 configurations. For direct substitution, the 64M x 16 mode ensures functional equivalence.

Q: Is the MT28EW01GABA1HPC-0SIT available in current inventory?

A: Yes. The MT28EW01GABA1HPC-0SIT is classified as an active product with 20,200 pieces in stock, compared to the obsolete PC28F00AP33EFA with 2,900 pieces remaining.

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