IS25LP128F-JBLA3-TR

IS25LP128F-JBLA3-TR is ISSI’s 128-Mbit serial NOR flash memory with a SPI-compatible interface. It’s designed to store firmware and data for embedded systems and boot code.
Key points:
- Capacity: 128 Mbit (16 MB) of non-volatile flash
- Interface: SPI-compatible; supports fast read timing suitable for high-speed system clocks
- Organization: 256-byte page programming; erase in 4 KB sectors, 32 KB blocks, 64 KB blocks, plus chip erase
- Voltage and power: 2.7–3.6 V operation with low-power modes (including deep power-down)
- Reliability/security: sector protection and hardware features for data integrity and security
- Package/ordering: “JBLA3” denotes the specific package variant; “TR” indicates Tape & Reel packaging for automated assembly
Typical uses:
- Boot firmware and code storage for MCUs/MPUs
- Embedded data logging and firmware updates in consumer, industrial, and automotive applications
Note: Exact timing (read speed, frequencies), voltage, and package options vary by variant. Refer to the IS25LP128F-JBLA3-TR datasheet for precise specs.

Key features of IS25LP128F-JBLA3-TR (128-Mbit serial flash):
- Density: 128 Mbit (16 MB) serial NOR flash
- Interface: SPI-compatible with Dual I/O, Quad I/O, and QPI modes for high-speed data transfer
- Organization: 256-byte page size; erase structure includes 4 KB sectors and 32/64 KB blocks; chip erase
- Performance (typical): High-speed read via SPI and Quad/ QPI modes
- Security/protection: Hardware/software write protection, sector/block protection, status registers, and 64-bit unique ID
- Endurance/retention: ~100,000 program/erase cycles; data retention typically >20 years
- Power: 2.7–3.6 V operating supply; supports low-power modes including Deep Power-Down
- Package: 8-pin package; Tape & Reel (TR) packaging variant indicated by suffix
- Temperature: Industrial-grade operation typically from -40°C to 85°C
- Applications: Code storage and firmware updates for microcontrollers, embedded systems, consumer/industrial electronics
Note: exact speed ratings and voltage/temperature ranges may vary slightly by lot; consult the datasheet for precise specs.

An 8-pin SOP (SOP-8) surface-mount package.

IS25LP128F-JBLA3-TR is an 8-pin SPI flash (128 Mbit).
Pinout (8 pins):
1 CS# — Chip Select (active low)
2 DO / SO — Data Out (MISO)
3 DI / SI — Data In (MOSI)
4 GND — Ground
5 CLK — Serial Clock
6 HOLD# — Hold (active low)
7 WP# — Write Protect (active low)
8 VCC — Power supply (2.7–3.6V)

- Manufacturer: Integrated Silicon Solution, Inc. (ISSI).
- Company type: A semiconductor company that designs and markets memory ICs (e.g., SPI flash, SRAM, DRAM); it is a fabless memory company that outsources manufacturing to foundries.

Typical applications:
- Embedded systems boot and firmware storage for MCUs/MPUs
- Firmware and application code storage with updates in IoT and consumer electronics
- Automotive ECUs, dashboards and infotainment firmware storage
- Industrial controllers, PLCs, and data-logging devices
- Small-form-factor data storage for cameras, wearables, and smart devices

Equivalent 128-Mbit SPI Flash parts from other vendors:
- Winbond: W25Q128FV, W25Q128JV
- Macronix: MX25L12845G (and MX25L12835F)
- GigaDevice: GD25Q128CSIG, GD25Q128C
- STMicroelectronics: S25FL128S, S25FL128SP
- Puya: P25Q128H
Notes: same basic SPI interface and 3.3V supply, but check 4-byte addressing, QPI/DQ modes, timing, package and temperature range for exact compatibility.