IS25LP064-JKLE Equivalent & Substitute Parts

Part Overview

The IS25LP064-JKLE is a 64Mbit NOR Flash memory IC manufactured by ISSI (Integrated Silicon Solution Inc). This device provides SPI and Quad I/O interface capabilities with QPI support at 133 MHz operational frequency, packaged in an 8-WSON (6x5) form factor. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts maintain identical core memory specifications while offering improved product status and availability.

Key Parameters

Parameter	Value
Memory Size	64Mbit
Memory Organization	8M x 8
Memory Interface	SPI - Quad I/O, QPI
Clock Frequency	133 MHz
Write Cycle Time	800µs
Voltage Supply Range	2.3V ~ 3.6V
Operating Temperature Range	-40°C ~ 105°C (TA)
Package Type	8-WDFN Exposed Pad
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the IS25LP064-JKLE is determined by strict equivalence across the following critical parameters: memory capacity (64Mbit), memory organization (8M x 8), interface protocol (SPI - Quad I/O, QPI), clock frequency (133 MHz), write cycle time (800µs), supply voltage range (2.3V ~ 3.6V), operating temperature range (-40°C ~ 105°C), and RoHS3 compliance status.

Two substitute parts meet these criteria:

IS25LP064A-JKLE — Direct functional equivalent with identical electrical and memory specifications. Differs only in product status (Active vs. Obsolete) and packaging format (Tray vs. unspecified). Supplier device package remains 8-WSON (6x5).

IS25LP064-JLLE — Manufacturer-recommended alternative with identical electrical and memory specifications. Differs in supplier device package dimensions (8-WSON 8x6 vs. 6x5). Physical footprint variation requires PCB layout verification.

Parameter Comparison

Parameter	IS25LP064-JKLE (Main)	IS25LP064A-JKLE (Substitute)	IS25LP064-JLLE (Substitute)
Manufacturer	ISSI	ISSI	ISSI
Memory Size	64Mbit	64Mbit	64Mbit
Memory Organization	8M x 8	8M x 8	8M x 8
Memory Interface	SPI - Quad I/O, QPI	SPI - Quad I/O, QPI	SPI - Quad I/O, QPI
Clock Frequency	133 MHz	133 MHz	133 MHz
Write Cycle Time	800µs	800µs	800µs
Voltage Supply	2.3V ~ 3.6V	2.3V ~ 3.6V	2.3V ~ 3.6V
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Package / Case	8-WDFN Exposed Pad	8-WDFN Exposed Pad	8-WDFN Exposed Pad
Supplier Device Package	8-WSON (6x5)	8-WSON (6x5)	8-WSON (8x6)
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

IS25LP064A-JKLE is the primary substitute for IS25LP064-JKLE. Both parts share identical electrical specifications, memory capacity, interface protocols, and thermal operating ranges. The IS25LP064A-JKLE maintains Active product status with higher inventory availability (2068 Pcs vs. 854 Pcs), ensuring supply chain continuity. Packaging format (Tray) and supplier device package (8-WSON 6x5) are identical to the original part, eliminating PCB layout modifications. RoHS3 compliance and MSL ratings are equivalent.

IS25LP064-JLLE serves as an alternative when IS25LP064A-JKLE is unavailable. This part is manufacturer-recommended and maintains all electrical and memory specifications. The primary consideration is the supplier device package dimension change from 8-WSON (6x5) to 8-WSON (8x6). PCB footprint compatibility must be verified before implementation. Active product status and equivalent compliance certifications support long-term availability.

Frequently Asked Questions (FAQ)

Q: Can IS25LP064A-JKLE directly replace IS25LP064-JKLE without PCB modifications?

A: Yes. Both parts use identical 8-WSON (6x5) supplier device packages and 8-WDFN Exposed Pad case types. Electrical specifications, memory capacity, interface protocols, and thermal ranges are equivalent. No PCB layout changes are required.

Q: What is the primary difference between IS25LP064A-JKLE and IS25LP064-JLLE?

A: The supplier device package dimensions differ. IS25LP064A-JKLE uses 8-WSON (6x5), while IS25LP064-JLLE uses 8-WSON (8x6). This physical dimension change requires PCB footprint verification. All electrical and memory specifications remain identical.

Q: Why is IS25LP064-JKLE classified as obsolete?

A: Product status reflects manufacturer lifecycle classification. Active alternatives (IS25LP064A-JKLE and IS25LP064-JLLE) provide equivalent functionality with improved supply availability and long-term support.

Q: Are there any compliance or certification differences between the three parts?

A: No. All three parts maintain ROHS3 compliance, identical MSL ratings (3, 168 Hours), and equivalent REACH and ECCN classifications.

Q: What inventory considerations apply to these substitutes?

A: IS25LP064A-JKLE has the highest inventory (2068 Pcs), followed by IS25LP064-JLLE (1144 Pcs). The original IS25LP064-JKLE has 854 Pcs available but is obsolete. For new production, IS25LP064A-JKLE is recommended based on availability and active status.

Q: Can IS25LP064-JLLE be used if PCB layout accommodates the larger 8-WSON (8x6) package?

A: Yes, provided PCB footprint design supports the 8-WSON (8x6) dimensions. All electrical specifications, memory capacity, and interface protocols are equivalent to IS25LP064-JKLE. Mechanical compatibility must be confirmed during design review.

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