DS5002FP-16 Equivalent & Substitute Parts

Part Overview

The DS5002FP-16 is an 8051-based 8-bit microcontroller IC manufactured by Analog Devices Inc./Maxim Integrated, featuring external NVSRAM program memory and operating at 16MHz. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new design implementations. The part is housed in an 80-MQFP (14x20) surface mount package with 32 I/O pins and includes integrated power-fail reset and watchdog timer peripherals.

Key Parameters

Parameter	Value
Core Processor	8051
Core Size	8-Bit
Speed	16MHz
Program Memory Type	External NVSRAM
RAM Size	128K x 8
Voltage Supply (Vcc/Vdd)	4.5V ~ 5.5V
Number of I/O	32
Connectivity	EBI/EMI, SIO, UART/USART
Peripherals	Power-Fail Reset, WDT
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	80-BQFP (80-MQFP 14x20)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility for the DS5002FP-16 is determined by strict equivalence across the following critical parameters:

Core Architecture: 8051 processor family
Clock Speed: 16MHz operation
Program Memory Configuration: External NVSRAM interface
Internal RAM Capacity: 128K x 8 organization
Supply Voltage Range: 4.5V ~ 5.5V compatibility
I/O Count: 32 pins minimum
Package Footprint: 80-BQFP surface mount form factor
Peripheral Set: Power-Fail Reset and Watchdog Timer functionality
Temperature Range: 0°C ~ 70°C operating specification

The DS5002FPM-16+ meets all substitution criteria as a direct functional equivalent within the DS500x series.

Parameter Comparison

Parameter	DS5002FP-16 (Main)	DS5002FPM-16+ (Substitute)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Series	DS500x	DS500x
Core Processor	8051	8051
Core Size	8-Bit	8-Bit
Speed	16MHz	16MHz
Program Memory Type	External NVSRAM	External NVSRAM
RAM Size	128K x 8	128K x 8
Voltage Supply (Vcc/Vdd)	4.5V ~ 5.5V	4.5V ~ 5.5V
Number of I/O	32	32
Connectivity	EBI/EMI, SIO, UART/USART	EBI/EMI, SIO, UART/USART
Peripherals	Power-Fail Reset, WDT	Power-Fail Reset, WDT
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)
Package / Case	80-BQFP	80-BQFP
Mounting Type	Surface Mount	Surface Mount
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	4 (72 Hours)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8542.31.0001	8542.31.0001

Engineering Selection Recommendations

The DS5002FPM-16+ is the direct substitute for the obsolete DS5002FP-16. Both devices share identical electrical and functional specifications within the DS500x microcontroller series. The primary distinctions are product lifecycle status and regulatory compliance:

DS5002FP-16: Obsolete status with RoHS non-compliant designation. Suitable for legacy system maintenance where existing inventory is available.
DS5002FPM-16+: Active product status with ROHS3 compliance. Recommended for new designs and ongoing production requiring regulatory alignment. MSL rating of 4 (72 Hours) requires appropriate moisture control during storage and assembly compared to the MSL 3 rating of the main part.

Both parts maintain identical electrical performance, pin configuration, and functional capability. Selection between these variants should be based on product lifecycle requirements and regulatory compliance mandates for the target application.

Frequently Asked Questions (FAQ)

Q: Can DS5002FPM-16+ directly replace DS5002FP-16 in existing designs?

A: Yes. The DS5002FPM-16+ provides complete functional equivalence with identical electrical specifications, pin assignments, package footprint, and peripheral functionality. No circuit modifications are required for substitution.

Q: What is the significance of the RoHS compliance difference?

A: The DS5002FP-16 is RoHS non-compliant, while DS5002FPM-16+ is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the DS5002FPM-16+ is the appropriate selection.

Q: How does the MSL rating difference affect component handling?

A: The DS5002FP-16 has MSL 3 (168 Hours), while DS5002FPM-16+ has MSL 4 (72 Hours). MSL 4 requires stricter moisture control during storage and assembly. Components must be stored in dry conditions and used within 72 hours of package opening, or re-baked according to IPC standards.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use the 80-BQFP surface mount package with 14x20mm dimensions. PCB footprints and assembly processes are interchangeable.

Q: What connectivity interfaces are supported?

A: Both variants support EBI/EMI (External Bus Interface/External Memory Interface), SIO (Serial I/O), and UART/USART (Universal Asynchronous Receiver-Transmitter) connectivity options.

Q: Is external oscillator required for operation?

A: Yes. Both the DS5002FP-16 and DS5002FPM-16+ require an external oscillator for 16MHz clock generation. No internal oscillator is integrated.

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