IS43TR16256AL-125KBLI-TR - 4Gbit DDR3L SDRAM 256Mx16 | ISSI
MPN: IS43TR16256AL-125KBLI-TR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.73 | $12.73 |
| 10 | $11.5 | $115.00 |
| 100 | $10.2 | $1,020.00 |
| 500 | $9.1 | $4,550.00 |
| 1,000 | $8.25 | $8,250.00 |
Drop-in alternatives for IS43TR16256AL-125KBLI-TR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
IS43TR16256AL-125KBLI
✅ Drop-In📋 Reference alternative (not in catalog)
IS43TR16256BL-125KBLI
✅ Drop-In📋 Reference alternative (not in catalog)
IS43TR16256AL-125KBL-TR
✅ Drop-In📋 Reference alternative (not in catalog)
IS43TR16256AL-107MBLI
✅ Drop-In✓ 99,999 In Stock
$2 / Unit
View Datasheet →MT41K256M16HA-125
✅ Drop-In✓ 99,999 In Stock
$5.6 / Unit
View Datasheet →K4B4G1646E-BYMA
✅ Drop-In✓ 99,999 In Stock
$11.5 / Unit
View Datasheet →IS43TR16256AL-125KBLI-TR Maximum Ratings & Electrical Characteristics
| Memory Type | DDR3L SDRAM |
| Memory Size | 4Gbit (256M x 16) |
| Data Bus Width | 16 bit |
| Clock Frequency | 800 MHz |
| Data Rate | 1600 Mbps |
| CAS Latency | 11 |
| Supply Voltage (VDD/VDDQ) | 1.35V + 0.1V, -0.067V |
| Backward Compatible Voltage | 1.5V |
| Row Cycle Time (tRC) | 20 ns |
| Row Active Time (tRAS) | 20 ns |
| Operating Temperature Range | -40°C to +95°C |
| Package | 96-TWBGA (9x13 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
IS43TR16256AL-125KBLI-TR Pin Configuration
| Pin A1 | VDD — Power supply |
| Pin A2 | DQ0 — Data input/output 0 |
| Pin A3 | DQ1 — Data input/output 1 |
| Pin A4 | VSS — Ground |
| Pin B1 | DQ2 — Data input/output 2 |
| Pin B2 | DQ3 — Data input/output 3 |
| Pin B3 | VDDQ — I/O power supply |
| Pin B4 | DQ4 — Data input/output 4 |
| Pin C1 | DQ5 — Data input/output 5 |
| Pin C2 | VSSQ — I/O ground |
| Pin C3 | DQ6 — Data input/output 6 |
| Pin C4 | DQ7 — Data input/output 7 |
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
IS43TR16256AL-125KBLI-TR is suitable for 6 applications: Industrial Automation, Networking Equipment, Embedded Computing, Automotive Infotainment, Medical Devices, IoT Gateways.
Industrial Automation
The IS43TR16256AL-125KBLI-TR is ideal for industrial automation systems that require reliable memory in harsh environments. Its industrial temperature range (-40°C to +95°C) ensures operation in factory floors and outdoor installations. The 4Gbit density and 16-bit data bus provide sufficient capacity for real-time control algorithms and data logging. The low-voltage operation at 1.35V reduces power dissipation, which is critical in sealed enclosures. With a data rate of 1600 Mbps, it supports high-speed communication between PLCs and HMIs. The 96-TWBGA package offers a compact footprint for space-constrained PCBs. When used in conjunction with a microcontroller like STM32F429IIT6, it enables advanced industrial control and monitoring.
Recommended
Networking Equipment
In networking equipment such as routers and switches, the IS43TR16256AL-125KBLI-TR provides high-bandwidth memory for packet buffering and forwarding tables. The 1600 Mbps data rate ensures low-latency processing of network traffic. The 4Gbit capacity allows storage of large routing tables and QoS policies. The low-voltage operation reduces power consumption in 24/7 operation, which is essential for data centers and enterprise networks. The industrial temperature range supports deployment in uncontrolled environments. The 16-bit data bus interfaces efficiently with network processors and FPGAs. For example, pairing with an FPGA like Xilinx Artix-7 enables flexible packet processing. The compact TWBGA package saves board space in high-density line cards.
Recommended
Embedded Computing
The IS43TR16256AL-125KBLI-TR is well-suited for embedded computing modules, including single-board computers and edge computing devices. Its 4Gbit density provides ample memory for operating systems and applications. The 1.35V operation is ideal for battery-powered or power-sensitive designs. The 1600 Mbps data rate supports fast boot times and responsive user interfaces. The industrial temperature range ensures reliability in outdoor kiosks and vehicular systems. The 96-TWBGA package is compatible with standard PCB assembly processes. When combined with a processor like STM32MP157CAC3, it enables rich embedded Linux applications. The low power consumption extends battery life in portable embedded systems.
Recommended
Automotive Infotainment
In automotive infotainment systems, the IS43TR16256AL-125KBLI-TR provides reliable memory for navigation, multimedia, and connectivity features. The industrial temperature range (-40°C to +95°C) meets automotive requirements for under-hood and cabin environments. The 4Gbit capacity supports map data and media buffering. The low-voltage operation reduces heat generation in the dashboard, improving system reliability. The 1600 Mbps data rate enables smooth video playback and responsive touch interfaces. The 16-bit data bus interfaces with automotive SoCs and MCUs. For instance, pairing with STM32H747BGT6 allows dual-core processing for advanced infotainment. The compact package fits into space-constrained head units.
Recommended
Medical Devices
The IS43TR16256AL-125KBLI-TR is suitable for medical devices that require high-reliability memory, such as patient monitors and diagnostic equipment. The industrial temperature range ensures operation in clinical environments. The 4Gbit density supports data logging and image storage. The low-voltage operation reduces power consumption, which is critical for battery-operated portable devices. The 1600 Mbps data rate enables fast data processing for real-time monitoring. The 16-bit data bus interfaces with medical-grade MCUs. For example, STM32L475VGT6 offers low-power operation for wearable monitors. The compact TWBGA package is ideal for miniaturized medical devices. Compliance with RoHS ensures environmental safety.
Recommended
IoT Gateways
In IoT gateways, the IS43TR16256AL-125KBLI-TR provides memory for protocol handling, data aggregation, and edge analytics. The 4Gbit capacity allows buffering of sensor data from multiple devices. The low-voltage operation is essential for power-constrained deployments. The industrial temperature range supports outdoor installations. The 1600 Mbps data rate enables efficient processing of MQTT and CoAP protocols. The 16-bit data bus interfaces with IoT-focused MCUs. For instance, STM32WL55JCI6 integrates LoRa for long-range communication. The compact package fits into small gateway enclosures. The low power consumption enables solar-powered operation.
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Engineering reference data for IS43TR16256AL-125KBLI-TR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IS43TR16256AL-125KBLI | IS43TR16256BL-125KBLI | MT41K256M16HA-125 |
|---|---|---|---|---|
| Package | 96-TWBGA (9x13 mm) | 96-TWBGA (9x13 mm) | 96-TWBGA (9x13 mm) | 96-FBGA (9x13 mm) |
| Brand | ISSI | ISSI | ISSI | Micron |
| Memory Size | 4Gbit | 4Gbit | 4Gbit | 4Gbit |
| Organization | 256M x 16 | 256M x 16 | 256M x 16 | 256M x 16 |
| Data Rate | 1600 Mbps | 1600 Mbps | 1600 Mbps | 1600 Mbps |
| Supply Voltage | 1.35V | 1.35V | 1.35V | 1.35V |
| Operating Temperature | -40°C to +95°C | -40°C to +95°C | -40°C to +95°C | 0°C to +95°C |
| CAS Latency | 11 | 11 | 11 | 11 |
Key Differentiators
- Industrial temperature range (-40°C to +95°C) (vs MT41K256M16HA-125)
- Low-voltage operation at 1.35V (vs K4B4G1646E-BYMA)
- Tape-and-reel packaging for automated assembly (vs IS43TR16256AL-125KBLI)
Design Notes
For DDR3L at 1600 Mbps, maintain controlled impedance of 40-50 ohms for data lines and 50-60 ohms for address/command lines. Keep trace lengths matched within 20 mils for data groups. Place decoupling capacitors (0.1uF and 0.01uF) close to each VDD and VDDQ pin. Use a solid ground plane to minimize noise.
The IS43TR16256AL-125KBLI-TR operates up to +95°C. Ensure adequate airflow or heatsinking in high-temperature environments. The 96-TWBGA package has a thermal resistance of approximately 20°C/W (theta_JA). For reliable operation, keep the ambient temperature below 75°C when dissipating 1W.
Use on-die termination (ODT) settings as recommended in the datasheet to reduce signal reflections. For 1600 Mbps, use fly-by topology for address/command signals and point-to-point for data. Add series termination resistors (22-33 ohms) near the driver if needed. Follow the layout guidelines in the ISSI application note.
Compliance Information
RoHS compliant per distributor listings. Lead-free per datasheet. AEC-Q100 not applicable for memory ICs.
