The **H5TC4G83BFR-RDA** is a high-performance, low-voltage synchronous dynamic random-access memory (DDR3L SDRAM) chip manufactured by SK Hynix. It is commonly found in laptop RAM modules, embedded systems, and networking hardware. --- ### 1. Technical Specifications Below are the primary technical parameters for the H5TC4G83BFR-RDA: | Parameter | Specification | | :--- | :--- | | **Manufacturer** | SK Hynix | | **Density** | 4 Gigabits (4Gb) | | **Configuration** | 512M x 8 (512 Megabytes) | | **Memory Type** | DDR3L (Low Voltage DDR3) | | **Standard Voltage** | 1.35V (Backward compatible with 1.5V) | | **Speed Grade** | 1600 Mbps (PC3L-12800) | | **Package Type** | 78-ball FBGA | | **Operating Temp** | 0°C to 95°C (Commercial Grade) | --- ### 2. Key Features and Architecture * **DDR3L Technology:** The "L" stands for Low Voltage. It operates at **1.35V**, which reduces power consumption by approximately 15-20% compared to standard 1.5V DDR3, while maintaining the same performance. * **Speed & Latency:** The "RDA" suffix indicates a clock frequency of **800MHz**, resulting in a data rate of **1600MT/s**. It typically operates with a CAS latency of 11 (CL11). * **Internal Banks:** It uses an 8-bank inner architecture, allowing for high-speed data interleaving. * **Refresh Cycles:** It supports Auto-refresh and Self-refresh modes to maintain data integrity during idle states. --- ### 3. Part Number Decoder Understanding the nomenclature helps in identifying the chip's specific capabilities: | Code Segment | Meaning | | :--- | :--- | | **H5TC** | Hynix DDR3L SDRAM (1.35V) | | **4G** | 4 Gigabit Density | | **8** | Organization: x8 bit | | **3** | Generation: 3rd Generation | | **B** | Die Revision: B-Die | | **FR** | Lead-Free & Halogen-Free Package | | **RD** | Speed: DDR3-1600 (11-11-11) | | **A** | Operating Temperature: Commercial (0°C ~ 95°C) | --- ### 4. Applications Because of its balance between power efficiency and density, this specific IC is widely used in: * **Laptops (SODIMMs):** Standard memory for 4th to 6th Gen Intel Core mobile platforms. * **Embedded Systems:** Industrial PCs and Single Board Computers (SBCs). * **Networking:** Routers, switches, and high-end printers that require buffer memory. ---