LPC2131FBD64,151 Equivalent & Substitute Parts

Part Overview

The LPC2131FBD64,151 is an ARM7® LPC2100 series microcontroller manufactured by NXP Semiconductors. This 16/32-bit embedded processor operates at 60MHz with 32KB FLASH program memory and 8KB RAM, housed in a 64-LQFP surface mount package. The device integrates multiple communication interfaces including I2C, SPI, SSP, and UART/USART, along with analog data conversion capabilities.

The LPC2131FBD64,151 carries an Obsolete product status. Locating equivalent substitute parts becomes necessary for legacy system maintenance, repair operations, and component procurement when original inventory is depleted or unavailable through standard distribution channels.

Key Parameters

Parameter	Value
Core Processor	ARM7®
Core Size	16/32-Bit
Speed	60MHz
Program Memory Size	32KB (32K x 8)
Program Memory Type	FLASH
RAM Size	8K x 8
Voltage Supply (Vcc/Vdd)	3V ~ 3.6V
Number of I/O	47
Connectivity	I2C, Microwire, SPI, SSI, SSP, UART/USART
Data Converters	A/D 8x10b SAR; D/A 1x10b
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	64-LQFP (10x10)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the LPC2131FBD64,151 is determined by strict equivalence across the following critical parameters:

Core Processor Architecture: ARM7® instruction set compatibility
Memory Configuration: 32KB FLASH program memory and 8KB RAM capacity
Operating Frequency: 60MHz clock speed
Voltage Supply Range: 3V to 3.6V operation
I/O Count: 47 input/output pins
Communication Interfaces: I2C, Microwire, SPI, SSI, SSP, UART/USART support
Analog Capabilities: 8-channel 10-bit SAR ADC and 1-channel 10-bit DAC
Package Format: 64-LQFP (10x10mm) surface mount configuration
Peripheral Set: Brown-out detection, Power-on Reset, PWM, and Watchdog Timer

The substitute part LPC2131FBD64/01,15 maintains identical electrical specifications and functional capabilities across all parameters listed above, ensuring direct functional equivalence for circuit-level replacement.

Parameter Comparison

Parameter	LPC2131FBD64,151	LPC2131FBD64/01,15	Match
Manufacturer	NXP Semiconductors	NXP USA Inc.	Same OEM
Core Processor	ARM7®	ARM7®	✓
Core Size	16/32-Bit	16/32-Bit	✓
Speed	60MHz	60MHz	✓
Program Memory Size	32KB (32K x 8)	32KB (32K x 8)	✓
Program Memory Type	FLASH	FLASH	✓
RAM Size	8K x 8	8K x 8	✓
Voltage Supply (Vcc/Vdd)	3V ~ 3.6V	3V ~ 3.6V	✓
Number of I/O	47	47	✓
Connectivity	I2C, Microwire, SPI, SSI, SSP, UART/USART	I2C, Microwire, SPI, SSI, SSP, UART/USART	✓
A/D Converter	8x10b SAR	8x10b	✓
D/A Converter	1x10b	1x10b	✓
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, 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	✓
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	✓
Product Status	Obsolete	Not For New Designs	Legacy

Engineering Selection Recommendations

The LPC2131FBD64/01,15 serves as a direct functional equivalent to the LPC2131FBD64,151. Both devices are manufactured by NXP and share identical electrical and mechanical specifications across all critical parameters.

The primary distinction lies in product lifecycle status: the original part carries Obsolete designation, while the substitute maintains Not For New Designs status. This indicates the substitute part remains available through NXP distribution channels for legacy system support and maintenance applications, whereas the original part has reached end-of-life.

Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring equivalent environmental performance and handling requirements. The packaging format (64-LQFP, 10x10mm) and mounting methodology remain unchanged, allowing direct PCB-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can LPC2131FBD64/01,15 replace LPC2131FBD64,151 in existing designs?

A: Yes. The substitute part maintains identical core processor architecture, memory configuration, operating frequency, voltage supply range, I/O count, communication interfaces, analog conversion capabilities, and package format. Direct functional equivalence is established across all electrical and mechanical parameters.

Q: What is the difference between these part numbers?

A: The part numbers differ in suffix designation (,151 versus /01,15), which reflects different manufacturing batches or distribution channels from NXP. The electrical and functional specifications remain identical.

Q: Are there packaging differences between these parts?

A: The original part LPC2131FBD64,151 is specified without explicit packaging notation, while LPC2131FBD64/01,15 is supplied in Tray packaging. Both utilize the 64-LQFP (10x10mm) surface mount case format. Tray packaging is standard for component distribution and does not affect electrical performance or PCB integration.

Q: Do both parts support the same communication protocols?

A: Yes. Both parts integrate identical connectivity options: I2C, Microwire, SPI, SSI, SSP, and UART/USART interfaces. Peripheral support including Brown-out detection, Power-on Reset, PWM, and Watchdog Timer functions are equivalent.

Q: What is the operating temperature range for both parts?

A: Both the LPC2131FBD64,151 and LPC2131FBD64/01,15 operate across -40°C to 85°C ambient temperature range (TA), supporting industrial and extended commercial applications.

Q: Are both parts RoHS compliant?

A: Yes. Both parts maintain ROHS3 compliance and carry identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), ensuring equivalent environmental performance and handling requirements.

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