The **IS25LP064A-RHLA1** is a high-performance 64-Megabit (8 MB) Serial Flash Memory manufactured by Integrated Silicon Solution Inc. (ISSI). It is designed for high-speed systems that require reliable non-volatile storage. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Memory Capacity** | 64 Megabits (8 Megabytes) | | **Interface** | SPI, Dual SPI, Quad SPI, and QPI | | **Clock Frequency** | Up to 133 MHz (Standard/Dual/Quad SPI) | | **Operating Voltage** | 2.3V to 3.6V | | **Temperature Range** | Industrial: -40°C to +85°C | | **Package Type** | 24-ball TFBGA (6x8mm) | | **Data Retention** | 20 Years | --- ### 2. Functional Features * **Multi-I/O Support:** It supports standard Serial Peripheral Interface (SPI), as well as Dual/Quad I/O modes. Quad SPI (QSPI) allows for a theoretical throughput of up to 532 Mbps. * **High Speed Read:** Supports "Fast Read" and DTR (Double Transfer Rate) modes, enabling data to be read on both edges of the clock. * **Flexible Architecture:** * Uniform 4KB sectors. * Uniform 32KB/64KB blocks. * **Low Power Consumption:** * Active Read Current: ~12mA (at 133MHz). * Deep Power Down: < 5µA (typical). --- ### 3. Pinout Configuration (24-Ball TFBGA) The "RHLA1" suffix indicates a specific ball grid array layout. Below is the general functional mapping for this package: | Ball Designation | Name | Function | | :--- | :--- | :--- | | **C2** | VCC | Power Supply | | **D3** | GND | Ground | | **B2** | CE# | Chip Enable (Active Low) | | **D2** | SO (IO1) | Serial Data Output / IO1 | | **D1** | SI (IO0) | Serial Data Input / IO0 | | **C1** | SCK | Serial Clock | | **C4** | WP# (IO2) | Write Protect / IO2 | | **C3** | HOLD# (IO3) | Hold or Reset / IO3 | --- ### 4. Part Number Decoder (IS25LP064A-RHLA1) Understanding the nomenclature helps in identifying the exact variant: * **IS**: ISSI (Manufacturer). * **25LP**: Product Family (2.5V/3V Ultra-Low Power Serial Flash). * **064**: Density (64 Megabits). * **A**: Revision / Product Version. * **RH**: Package Type (24-ball TFBGA, 6x8mm). * **L**: Temperature Grade (Industrial -40°C to +85°C). * **A1**: Automotive Grade / Special Processing (Optional indicator). --- ### 5. Common Applications * **Embedded Systems:** Storing boot code and firmware for microcontrollers. * **Automotive:** Infotainment systems and instrument clusters. * **Networking:** Storage for routers, switches, and gateways. * **Industrial:** Programmable Logic Controllers (PLCs) and HMI panels.