IS46TR16256A-125KBLA2 - 4Gb DDR3 SDRAM 256Mx16 | ISSI
MPN: IS46TR16256A-125KBLA2 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $21.19 | $21.19 |
| 10 | $19.99 | $199.90 |
| 100 | $18.85 | $1,885.00 |
| 500 | $17.79 | $8,895.00 |
| 1,000 | $16.78 | $16,780.00 |
Drop-in alternatives for IS46TR16256A-125KBLA2 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
IS46TR16256B-125KBLA2
β Drop-Inπ Reference alternative (not in catalog)
IS46TR16256BL-125KBLA2
β Drop-Inπ Reference alternative (not in catalog)
IS46TR16256A-125KBLA2-TR
β Drop-Inπ Reference alternative (not in catalog)
MT41K256M16HA-125
β Drop-Inβ 99,999 In Stock
$5.6 / Unit
View Datasheet βK4B4G1646E-BYMA
β Drop-Inβ 99,999 In Stock
$11.5 / Unit
View Datasheet βIS46TR16256A-125KBLA2 Maximum Ratings & Electrical Characteristics
| Memory Type | DDR3 SDRAM |
| Memory Size | 4 Gbit |
| Organization | 256M x 16 |
| Supply Voltage (VDD/VDDQ) | 1.5V Β± 0.075V |
| Data Rate | 1600 MT/s |
| Clock Frequency | 800 MHz |
| tRCD (RAS to CAS Delay) | 20 ns |
| Number of Banks | 8 |
| Operating Current (IDD) | 290 mA |
| Operating Temperature (Tc) | 0Β°C to +95Β°C |
| Package | 96-TWBGA (9x13 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Interface | Parallel |
| Access Time | 20 ns |
IS46TR16256A-125KBLA2 Pin Configuration
| Pin A1 | VDD β Power supply (1.5V) |
| Pin A2 | DQ0 β Data input/output 0 |
| Pin A3 | DQ1 β Data input/output 1 |
| Pin A4 | VSS β Ground |
| Pin A5 | DQ2 β Data input/output 2 |
| Pin A6 | DQ3 β Data input/output 3 |
| Pin A7 | VDDQ β I/O power supply (1.5V) |
| Pin A8 | DQ4 β Data input/output 4 |
| Pin A9 | DQ5 β Data input/output 5 |
| Pin A10 | VSS β Ground |
| Pin A11 | DQ6 β Data input/output 6 |
| Pin A12 | DQ7 β Data input/output 7 |
| Pin B1 | VSS β Ground |
| Pin B2 | DQ8 β Data input/output 8 |
| Pin B3 | DQ9 β Data input/output 9 |
| Pin B4 | VDDQ β I/O power supply (1.5V) |
| Pin B5 | DQ10 β Data input/output 10 |
| Pin B6 | DQ11 β Data input/output 11 |
| Pin B7 | VSS β Ground |
| Pin B8 | DQ12 β Data input/output 12 |
| Pin B9 | DQ13 β Data input/output 13 |
| Pin B10 | VDDQ β I/O power supply (1.5V) |
| Pin B11 | DQ14 β Data input/output 14 |
| Pin B12 | DQ15 β Data input/output 15 |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
IS46TR16256A-125KBLA2 is suitable for 6 applications: Networking Equipment, Industrial PCs, Embedded Computing, Telecommunications Infrastructure, Video Processing Systems, Data Acquisition Systems.
Networking Equipment
The IS46TR16256A-125KBLA2 provides high-density, high-speed memory for routers, switches, and network appliances. Its 4Gb capacity and 1600 MT/s data rate enable efficient packet buffering and routing table storage. The 256Mx16 organization simplifies bus design, reducing PCB complexity. With a 20ns tRCD, it ensures low latency for time-sensitive network operations. The 96-ball TWBGA package allows compact board layouts, ideal for space-constrained networking hardware. Its 1.5V operation reduces power consumption, critical for 24/7 operation in data centers and enterprise environments.
Recommended
Industrial PCs
In industrial PCs, the IS46TR16256A-125KBLA2 serves as main memory for process control, HMI, and data logging. Its 4Gb density supports multitasking and large applications, while the 1600 MT/s speed ensures responsive performance. The device operates reliably in industrial environments with a temperature range of 0Β°C to +95Β°C, and its 1.5V supply is compatible with standard industrial power rails. The 96-ball TWBGA package withstands vibration and thermal cycling, making it suitable for factory automation and machine vision systems. The 20ns tRCD minimizes latency for real-time control loops.
Recommended
Embedded Computing
The IS46TR16256A-125KBLA2 is ideal for embedded computing modules, such as single-board computers and IoT gateways. Its 4Gb capacity provides ample memory for Linux-based applications, while the 256Mx16 interface reduces pin count, simplifying PCB routing. The device's 1.5V operation aligns with low-power embedded designs, and the 96-ball TWBGA package enables compact module form factors. With a 20ns tRCD, it offers fast access for responsive user interfaces and data processing. The 1600 MT/s data rate supports high-bandwidth tasks like video streaming and real-time analytics.
Recommended
Telecommunications Infrastructure
In telecom base stations and switches, the IS46TR16256A-125KBLA2 provides reliable, high-speed memory for call processing and data routing. Its 4Gb density supports large routing tables and buffering, while the 1600 MT/s speed meets the demands of high-throughput networks. The device operates at 1.5V, reducing power in energy-sensitive telecom sites. The 96-ball TWBGA package offers excellent thermal performance, crucial for outdoor and high-temperature environments. With a 20ns tRCD, it ensures low latency for real-time voice and data services, and its RoHS compliance meets environmental regulations.
Recommended
Video Processing Systems
The IS46TR16256A-125KBLA2 is well-suited for video processing systems, including video surveillance, digital signage, and medical imaging. Its 4Gb capacity can store multiple video frames for processing, and the 1600 MT/s data rate enables real-time video streaming. The 256Mx16 organization provides a wide data path, reducing the number of memory devices needed. The device's 1.5V operation minimizes power in continuous-operation systems. The 96-ball TWBGA package supports high-density PCB designs, and the 20ns tRCD ensures low latency for frame buffering. Its RoHS compliance is essential for consumer electronics.
Recommended
Data Acquisition Systems
In data acquisition systems, the IS46TR16256A-125KBLA2 provides high-speed, high-density memory for buffering large datasets. Its 4Gb capacity can store hours of sampled data, while the 1600 MT/s speed ensures fast transfer to processing units. The device operates at 1.5V, compatible with precision analog front-ends. The 96-ball TWBGA package offers a compact footprint for multi-channel systems. With a 20ns tRCD, it provides low-latency access for real-time monitoring. The 256Mx16 organization simplifies interfacing with high-resolution ADCs and DSPs, making it ideal for scientific and industrial instrumentation.
Recommended
Recommended Products Summary
Engineering reference data for IS46TR16256A-125KBLA2 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IS46TR16256B-125KBLA2 | IS46TR16256BL-125KBLA2 | MT41K256M16HA-125 |
|---|---|---|---|---|
| Package | 96-TWBGA (9x13 mm) | 96-TWBGA (9x13 mm) - same | 96-TWBGA (9x13 mm) - same | 96-FBGA (9x13 mm) - same |
| Brand | ISSI | ISSI | ISSI | Micron |
| Memory Size | 4 Gbit | 4 Gbit | 4 Gbit | 4 Gbit |
| Organization | 256M x 16 | 256M x 16 | 256M x 16 | 256M x 16 |
| Supply Voltage | 1.5V | 1.5V | 1.35V (DDR3L) | 1.35V (DDR3L) |
| Data Rate | 1600 MT/s | 1600 MT/s | 1600 MT/s | 1600 MT/s |
| Operating Temperature | 0Β°C to +95Β°C | -40Β°C to +105Β°C | 0Β°C to +95Β°C | 0Β°C to +95Β°C |
| Automotive Grade | No | Yes | No | No |
Key Differentiators
- Automotive-grade variant available (vs IS46TR16256B-125KBLA2)
- Low-voltage DDR3L option (vs IS46TR16256BL-125KBLA2)
- Cross-brand compatibility (vs MT41K256M16HA-125)
Design Notes
For high-speed DDR3 signals, maintain controlled impedance of 50 ohms for data lines and 40 ohms for address/command lines. Use ground planes beneath the memory device and minimize trace lengths to reduce signal skew. Follow JEDEC DDR3 layout guidelines for routing and termination.
Decouple VDD and VDDQ with 0.1uF and 1uF ceramic capacitors placed close to the power pins. Use a dedicated power plane for VDD and VDDQ to minimize noise. The device requires 1.5V supply; ensure stable regulation under load transients.
The IS46TR16256A-125KBLA2 dissipates up to 290mA of current. Ensure adequate airflow or a thermal pad to keep the case temperature within the 0Β°C to +95Β°C range. In high-density designs, consider thermal vias under the package to improve heat dissipation.
Compliance Information
RoHS compliant per distributor listings. Not AEC-Q100 qualified; automotive version is IS46TR16256B-125KBLA2.
