IS25WP064D-JKLE

IS25WP064D-JKLE is a 64‑Mbit serial flash memory from ISSI. It stores firmware or data and is SPI‑/QPI‑bus compatible for high throughput.
Key points
- Capacity: 64 Mbit (8 MBytes) of non‑volatile flash.
- Interfaces: SPI with optional Quad I/O (QPI) mode for faster reads/writes.
- Organization: 3-byte addressing (sufficient for up to 64 Mbit); supports page program (typically 256 bytes) and sector/block erases (e.g., 4 KB/32 KB/64 KB).
- Operations: Read, fast read, page program, sector/block erase, erase‑all; write enable with WP#/HOLD protection and deep power‑down.
- Power and package: single‑supply operation (typical 2.7–3.6 V); designed for low power in standby; JKLE suffix indicates a specific package/temperature variant.
- Applications: firmware storage and updates, boot code, embedded systems requiring reliable, non‑volatile code storage.
Note: For exact voltage ranges, speed, timing, and packaging details, consult the IS25WP064D‑JKLE datasheet.

Key features of IS25WP064D-JKLE (64 Mbit serial flash):
- Density: 64 Mbit (8 MB) of flash memory.
- Interface: SPI with support for Standard SPI, Dual SPI, Quad SPI; QPI modes available on some modes.
- Voltage: 2.7–3.6 V operating range.
- Speed: High-speed operation up to ~104 MHz in SPI/IO modes (enhanced modes for Quad/Dual).
- Organization: 256-byte pages; erase options include 4 KB sectors and larger blocks (typical 64 KB blocks); chip erase supported.
- Write: Page program, with Write Enable/Write Disable controls.
- Protection: Hardware write-protect (WP) and software/region protection options.
- Power: Deep power-down mode and low active current for standby.
- Endurance/Retention: Typical endurance around 100k program/erase cycles; data retention ~20 years.
- Temperature: Industrial-grade range often -40 to 85°C (consult datasheet for exact variant).
- Package: 8-pin JKLE package variant.
Note: Exact timing, voltage, and mode support can vary by revision; please consult the IS25WP064D-JKLE datasheet for precise specifications for this package/grade.

8-pin SOIC (SOP) package.

- Pin count: 8 pins
- Function: 64 Mbit serial NOR flash memory (non-volatile storage) with SPI interface for storing firmware/data.

Manufacturer: Integrated Silicon Solution, Inc. (ISSI).
What kind of company: A fabless semiconductor company that designs and markets memory products (e.g., NOR flash, SRAM, DRAM) and outsources manufacturing to contract foundries.

Typical applications for IS25WP064D-JKLE:
- Embedded system firmware storage and boot memory for MCUs/MPUs
- Secure firmware updates and recovery
- Data logging and parameter/config storage
- IoT devices, wearables, consumer electronics
- Automotive and industrial control systems
- Networking equipment (routers, switches) and printers/cameras
- Smart sensors and appliances requiring non-volatile, low-pin memory

Equivalent 64 Mbit SPI NOR Flash parts (Quad I/O) you can consider, depending on voltage/package:
- Winbond: W25Q64JV, W25Q64FV
- Macronix: MX25L6406E, MX25U6406E
- GigaDevice: GD25Q64C, GD25Q64E
- Puya: P25Q64L / P25Q64LE
Note: exact pinout, voltage (e.g., 1.8V vs 3.3V), timing, and JEDEC ID must match JKLE packaging; verify datasheets for pin-for-pin compatibility.