LPC2129FBD64,151 Equivalent & Substitute Parts

Part Overview

The LPC2129FBD64,151 is an ARM7® LPC2100 series microcontroller IC featuring 16/32-bit architecture, 60MHz operation, and 256KB FLASH memory in a 64-LQFP package. This device is classified as Obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement. The LPC2129FBD64,151 is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), suitable for industrial and embedded applications requiring CANbus, I2C, SPI, and UART connectivity.

Key Parameters

Parameter	Value
Manufacturer	NXP USA Inc.
Series	LPC2100
Core Processor	ARM7®
Core Size	16/32-Bit
Speed	60MHz
Program Memory Size	256KB (256K x 8)
Program Memory Type	FLASH
RAM Size	16K x 8
Number of I/O	46
Voltage Supply (Vcc/Vdd)	1.65V ~ 3.6V
Data Converters	A/D 4x10b
Connectivity	CANbus, I2C, Microwire, SPI, SSI, SSP, UART/USART
Peripherals	POR, PWM, WDT
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	64-LQFP (10x10)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

The LPC2129FBD64/01,15 qualifies as a direct substitute for the LPC2129FBD64,151 based on the following critical parameters:

Identical core processor architecture (ARM7®)
Matching core size (16/32-Bit)
Identical operating frequency (60MHz)
Identical program memory configuration (256KB FLASH)
Identical RAM capacity (16K x 8)
Identical I/O count (46 pins)
Identical voltage supply range (1.65V ~ 3.6V)
Identical data converter specification (A/D 4x10b)
Identical connectivity interfaces (CANbus, I2C, Microwire, SPI, SSI, SSP, UART/USART)
Identical peripheral set (POR, PWM, WDT)
Identical operating temperature range (-40°C ~ 85°C)
Identical package form factor (64-LQFP 10x10)
Identical compliance certifications (ROHS3, REACH Unaffected)

The primary distinction between these parts is packaging format: the main part uses standard packaging while the substitute uses Tray packaging. Both parts share the same base product number (LPC2129) and are manufactured by NXP USA Inc.

Parameter Comparison

Parameter	LPC2129FBD64,151	LPC2129FBD64/01,15	Match
Manufacturer	NXP USA Inc.	NXP USA Inc.	✓
Series	LPC2100	LPC2100	✓
Core Processor	ARM7®	ARM7®	✓
Core Size	16/32-Bit	16/32-Bit	✓
Speed	60MHz	60MHz	✓
Program Memory Size	256KB (256K x 8)	256KB (256K x 8)	✓
Program Memory Type	FLASH	FLASH	✓
RAM Size	16K x 8	16K x 8	✓
Number of I/O	46	46	✓
Voltage Supply (Vcc/Vdd)	1.65V ~ 3.6V	1.65V ~ 3.6V	✓
Data Converters	A/D 4x10b	A/D 4x10b	✓
Connectivity	CANbus, I2C, Microwire, SPI, SSI, SSP, UART/USART	CANbus, I2C, Microwire, SPI, SSI, SSP, UART/USART	✓
Peripherals	POR, PWM, WDT	POR, PWM, WDT	✓
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	✓
Package / Case	64-LQFP (10x10)	64-LQFP (10x10)	✓
Mounting Type	Surface Mount	Surface Mount	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
MSL Rating	1 (Unlimited)	1 (Unlimited)	✓
Packaging Format	Standard	Tray	Different
Product Status	Obsolete	Not For New Designs	Different

Engineering Selection Recommendations

The LPC2129FBD64/01,15 is a direct functional equivalent to the LPC2129FBD64,151. Both parts maintain identical electrical specifications, pin configurations, and performance characteristics. The substitute part is available in higher inventory (16,400 units versus 847 units) and uses Tray packaging, which may offer advantages for automated assembly processes.

Both parts carry Obsolete or Not For New Designs status classifications, indicating that NXP USA Inc. has discontinued active support for the LPC2100 series. For new system designs, evaluation of current-generation ARM Cortex-M microcontroller alternatives from NXP is recommended. For legacy system maintenance and component replacement, either part satisfies identical functional requirements.

Compliance certifications are equivalent: both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings, suitable for standard industrial storage and handling conditions.

Frequently Asked Questions (FAQ)

Q: Are the LPC2129FBD64,151 and LPC2129FBD64/01,15 pin-compatible?

A: Yes. Both parts use the 64-LQFP (10x10) package with identical pin assignments, I/O count (46), and electrical characteristics. Direct PCB substitution is possible without layout modifications.

Q: What is the difference between these two part numbers?

A: The primary difference is packaging format. The LPC2129FBD64,151 uses standard packaging, while the LPC2129FBD64/01,15 uses Tray packaging. All electrical and functional specifications are identical.

Q: Can I use the LPC2129FBD64/01,15 in place of the LPC2129FBD64,151 in existing designs?

A: Yes. The substitute part is functionally equivalent across all critical parameters: processor architecture, memory configuration, operating frequency, voltage supply range, I/O count, connectivity interfaces, and peripheral set. Tray packaging does not affect electrical performance or PCB integration.

Q: What does "Not For New Designs" status mean for the substitute part?

A: This designation indicates that NXP USA Inc. has discontinued active development and support for the LPC2100 series. The part remains available for legacy system support and component replacement but should not be selected for new product development. Current-generation alternatives should be evaluated for new designs.

Q: Are both parts RoHS compliant?

A: Yes. Both the LPC2129FBD64,151 and LPC2129FBD64/01,15 are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for industrial applications.

Q: What is the MSL rating, and does it differ between these parts?

A: Both parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life under standard storage conditions. No special moisture control measures are required during handling, storage, or assembly.

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