MSP430F5259IZQE Equivalent & Substitute Parts

Part Overview

The MSP430F5259IZQE is a 16-bit microcontroller from Texas Instruments' MSP430F5xx series, featuring 128KB FLASH program memory, 32KB RAM, and integrated connectivity interfaces including I2C, SPI, UART/USART, and IrDA. The device is packaged in an 80-BGA MICROSTAR JUNIOR (5x5) form factor with a maximum operating frequency of 25MHz and supply voltage range of 1.8V to 3.6V.

The MSP430F5259IZQE is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this microcontroller platform.

Key Parameters

Parameter	Value
Core Processor	MSP430 CPUXV2
Core Size	16-Bit
Speed	25MHz
Program Memory Size	128KB (128K x 8)
Program Memory Type	FLASH
RAM Size	32K x 8
Voltage Supply (Vcc/Vdd)	1.8V ~ 3.6V
Data Converters	A/D 12x10b
Connectivity	I2C, IrDA, SCI, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O	53
Operating Temperature	-40°C ~ 85°C (TA)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the MSP430F5259IZQE is determined by strict equivalence across the following critical parameters:

Core processor architecture (MSP430 CPUXV2)
Core size (16-Bit)
Operating frequency (25MHz)
Program memory capacity and type (128KB FLASH)
RAM capacity (32K x 8)
Supply voltage range (1.8V ~ 3.6V)
Peripheral feature set (I2C, IrDA, SCI, SPI, UART/USART, DMA, PWM, WDT, Brown-out Detect/Reset, POR)
Number of I/O pins (53)
Data converter specifications (A/D 12x10b)
Operating temperature range (-40°C ~ 85°C)
Compliance certifications (ROHS3, REACH Unaffected)

The MSP430F5259IRGCR qualifies as a direct substitute based on identical electrical specifications and functional capabilities. The primary difference is packaging format: the main part uses 80-BGA MICROSTAR JUNIOR (5x5), while the substitute uses 64-VQFN (9x9). Both packages maintain the same pin count (53 I/O) and electrical interface requirements.

Parameter Comparison

Parameter	MSP430F5259IZQE (Main)	MSP430F5259IRGCR (Substitute)
Manufacturer	Texas Instruments	Texas Instruments
Series	MSP430F5xx	MSP430F5xx
Base Product Number	MSP430F5259	MSP430F5259
Core Processor	MSP430 CPUXV2	MSP430 CPUXV2
Core Size	16-Bit	16-Bit
Speed	25MHz	25MHz
Program Memory Size	128KB (128K x 8)	128KB (128K x 8)
Program Memory Type	FLASH	FLASH
RAM Size	32K x 8	32K x 8
Voltage Supply (Vcc/Vdd)	1.8V ~ 3.6V	1.8V ~ 3.6V
Data Converters	A/D 12x10b	A/D 12x10b
Connectivity	I2C, IrDA, SCI, SPI, UART/USART	I2C, IrDA, SCI, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, DMA, POR, PWM, WDT	Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O	53	53
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount
Package / Case	80-VFBGA	64-VFQFN Exposed Pad
Supplier Device Package	80-BGA MICROSTAR JUNIOR (5x5)	64-VQFN (9x9)
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8542.31.0001	8542.31.0001

Engineering Selection Recommendations

The MSP430F5259IRGCR is the manufacturer-recommended substitute for the obsolete MSP430F5259IZQE. Both devices maintain identical electrical specifications, functional capabilities, and compliance certifications (ROHS3 Compliant, REACH Unaffected, EAR99 classification).

The MSP430F5259IRGCR offers the advantage of active product status, ensuring continued availability and long-term supply chain support. The substitute device is available in higher inventory quantities (653 Pcs) compared to the main part (617 Pcs).

The primary design consideration is packaging format transition from 80-BGA MICROSTAR JUNIOR (5x5) to 64-VQFN (9x9). Both packages maintain identical pin count and electrical interface specifications. PCB layout and footprint redesign is required to accommodate the different package geometry.

Frequently Asked Questions (FAQ)

Q: Are the MSP430F5259IZQE and MSP430F5259IRGCR electrically equivalent?

A: Yes. Both devices share identical core processor architecture (MSP430 CPUXV2), operating frequency (25MHz), memory configuration (128KB FLASH, 32KB RAM), supply voltage range (1.8V ~ 3.6V), peripheral feature set, and I/O count (53). Electrical functionality is fully equivalent.

Q: What is the primary difference between these two parts?

A: The main difference is packaging format. The MSP430F5259IZQE uses 80-BGA MICROSTAR JUNIOR (5x5), while the MSP430F5259IRGCR uses 64-VQFN (9x9). Both packages maintain the same pin count and electrical interface requirements.

Q: Does the package change affect PCB design?

A: Yes. The transition from BGA to VQFN packaging requires PCB footprint redesign. The physical dimensions, pin pitch, and layout requirements differ between the two package types. Thermal management characteristics may also differ and should be evaluated for your specific application.

Q: Is the MSP430F5259IRGCR available in Tape & Reel packaging?

A: Yes. The MSP430F5259IRGCR is supplied in Tape & Reel (TR) format, suitable for automated assembly processes.

Q: Why is the MSP430F5259IZQE classified as obsolete?

A: The MSP430F5259IZQE has reached end-of-life status. The MSP430F5259IRGCR maintains active product status and is the recommended replacement for new designs and ongoing production.

Q: Are compliance certifications identical between the two parts?

A: Yes. Both devices are ROHS3 Compliant, REACH Unaffected, and classified as EAR99 for export control purposes. Moisture Sensitivity Level (MSL) is identical at 3 (168 Hours).

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