Overview
The IS42S16400N-7TLI is a 64-Mbit synchronous DRAM (SDRAM) designed for high-speed data buffering and external memory expansion. It is widely used in embedded processors, display-driven systems, and industrial control platforms, where predictable timing, burst access, and stable memory performance are required.
Core Parameters
| Parameter | Specification |
|---|---|
| Memory Density | 64 Mbit (4M × 16) |
| Memory Type | SDRAM |
| Maximum Clock Frequency | Up to 143 MHz |
| Supply Voltage | 3.0 V – 3.6 V |
| Data Bus Width | 16-bit |
| Burst Length | Programmable |
| Operating Temperature | –40°C to +85°C |
These parameters make the device suitable for real-time data buffering and graphics-related applications, especially where synchronous operation and stable timing control are critical.
Features
- Synchronous DRAM architecture supporting high-speed clocked access
- Programmable burst length and CAS latency for flexible system timing
- Auto-refresh and self-refresh modes for reliable data retention
- LVTTL-compatible I/O signaling
- Designed for continuous read/write operations in timing-sensitive systems
For automated manufacturing environments, the device is also available as IS42S16400N-7TLI-TR, which denotes the tape-and-reel delivery option.
Typical Application Scenarios
- Microcontroller and microprocessor systems requiring external SDRAM
- Graphics and display subsystems for frame buffer storage
- Industrial automation equipment with real-time data handling
- Networking and communication devices for packet and data buffering
- Instrumentation and measurement systems with continuous data flow
Its synchronous design supports stable operation in applications with frequent burst access.
In embedded display systems, the IS42S16400N-7TLI is often paired with graphic controllers such as the FT800Q-R. This combination provides external frame buffering and high-speed data handling, enabling smooth graphics rendering and stable operation in HMI, touchscreen, and data-intensive embedded display applications.
Performance Comparison
Within the class of 64-Mbit SDRAM devices, the IS42S16400N-7TLI provides:
- Consistent synchronous performance up to 143 MHz
- Predictable access timing suitable for real-time systems
- Flexible burst operation for efficient data transfer
These characteristics align well with modern embedded designs that require balanced speed, capacity, and timing reliability.
Conclusion
The IS42S16400N-7TLI is a reliable SDRAM solution for embedded systems that require high-speed external memory with stable synchronous operation. As the newer-generation device replacing the discontinued IS42S16400J-7TLI, it supports continued long-term design stability while maintaining familiar SDRAM operating characteristics.
Manufacturer Profile
Integrated Silicon Solution, Inc. (ISSI) is a semiconductor company specializing in memory solutions, including SRAM, DRAM, and flash memory. ISSI products are widely used in industrial, networking, and embedded markets, with a focus on long product lifecycles, stable supply, and consistent electrical performance.
FAQ
1. What is the primary function of the IS42S16400N-7TLI?
It provides external synchronous DRAM for data buffering, frame storage, and real-time memory expansion in embedded systems.
2. What types of applications benefit most from this SDRAM?
Applications with frequent burst read/write operations, such as graphics processing, industrial control, and communication systems, benefit most.
3. How does the IS42S16400N-7TLI support stable system performance?
Its synchronous architecture, programmable timing parameters, and refresh mechanisms enable predictable and reliable memory access.
4. How can I verify the quality of the IS42S16400N-7TLI mentioned in this blog?
7SEtronic follows a complete and standardized quality inspection SOP, including label verification, visual inspection, and X-RAY analysis, which can be referenced to ensure product authenticity and reliability.
For more information and to review our available inventory, please contact our team for detailed pricing, current stock levels, and any additional technical support you may need.
You can find more component guides and application notes in our Component Technical Guides section: