IS46TR16256A-125KBLA2 - 4Gb DDR3 SDRAM 256Mx16 | ISSI
MPN: IS46TR16256A-125KBLA2 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.2 | $112.00 |
| 100 | $9.8 | $980.00 |
| 500 | $8.5 | $4,250.00 |
| 1,000 | $7.2 | $7,200.00 |
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)
IS43TR16256AL-125KBL
β Drop-Inβ In Stock
$5.6 / Unit
View Datasheet βIS43TR16256AL-107MBLI
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$2 / Unit
View Datasheet βMT41K256M16HA-125:E
β Drop-Inβ In Stock
$3.1 / Unit
View Datasheet βK4B4G1646D-BYK00
β Drop-Inβ In Stock
$7.5 / Unit
View Datasheet βMT41K256M16HA-125IT:E
β Drop-Inβ In Stock
$4.5 / Unit
View Datasheet βIS46TR16256A-125KBLA2 Maximum Ratings & Electrical Characteristics
| Memory Type | DDR3 SDRAM |
| Memory Size | 4 Gbit (256M x 16) |
| Data Rate | 1600 MT/s |
| Clock Frequency | 800 MHz |
| Supply Voltage | 1.5 V |
| Low Voltage Support | 1.35 V (backward compatible) |
| tRCD (RAS to CAS Delay) | 20 ns |
| Operating Current | 290 mA |
| Operating Temperature Range | 0Β°C to +95Β°C (Tc) |
| Package | 96-TWBGA (9x13 mm) |
| Mounting Type | Surface Mount |
| Number of Banks | 8 |
| Interface | Parallel |
| RoHS Status | Compliant |
| Lifecycle Status | Active |
IS46TR16256A-125KBLA2 Pin Configuration
| Pin A1 | VDD β Power supply (1.5V) |
| Pin A2 | DQ0 β Data I/O 0 |
| Pin A3 | DQ1 β Data I/O 1 |
| Pin B1 | VSS β Ground |
| Pin B2 | DQ2 β Data I/O 2 |
| Pin B3 | DQ3 β Data I/O 3 |
| Pin C1 | VDDQ β I/O power supply (1.5V) |
| Pin C2 | DQ4 β Data I/O 4 |
| Pin C3 | DQ5 β Data I/O 5 |
| Pin D1 | VSSQ β I/O ground |
| Pin D2 | DQ6 β Data I/O 6 |
| Pin D3 | DQ7 β Data I/O 7 |
| Pin E1 | VREF β Reference voltage for address/command |
| Pin E2 | A0 β Address input 0 |
| Pin E3 | A1 β Address input 1 |
| Pin F1 | A2 β Address input 2 |
| Pin F2 | A3 β Address input 3 |
| Pin F3 | A4 β Address input 4 |
| Pin G1 | A5 β Address input 5 |
| Pin G2 | A6 β Address input 6 |
| Pin G3 | A7 β Address input 7 |
| Pin H1 | A8 β Address input 8 |
| Pin H2 | A9 β Address input 9 |
| Pin H3 | A10/AP β Address input 10 / Auto-precharge |
| Pin J1 | A11 β Address input 11 |
| Pin J2 | A12 β Address input 12 |
| Pin J3 | A13 β Address input 13 |
| Pin K1 | A14 β Address input 14 |
| Pin K2 | A15 β Address input 15 |
| Pin K3 | BA0 β Bank address 0 |
| Pin L1 | BA1 β Bank address 1 |
| Pin L2 | BA2 β Bank address 2 |
| Pin L3 | RAS# β Row address strobe |
| Pin M1 | CAS# β Column address strobe |
| Pin M2 | WE# β Write enable |
| Pin M3 | CS# β Chip select |
| Pin N1 | CKE β Clock enable |
| Pin N2 | ODT β On-die termination |
| Pin N3 | CK β Clock (positive) |
| Pin P1 | CK# β Clock (negative) |
| Pin P2 | RESET# β Reset |
| Pin P3 | VDD β Power supply (1.5V) |
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: Embedded Computing, Networking Equipment, Industrial PCs, Telecommunications Infrastructure, Video Processing, Data Acquisition Systems.
Embedded Computing
The IS46TR16256A-125KBLA2 provides high-density 4Gb DDR3 memory for embedded processors, offering 1600 MT/s data rate and 12.8 GB/s bandwidth. Its 256Mx16 organization simplifies bus design, reducing component count. The 96-TWBGA package enables compact layouts in space-constrained systems. With 1.5V operation and low-power modes, it suits power-sensitive embedded applications. The 0Β°C to +95Β°C range covers typical industrial environments.
Recommended
Networking Equipment
In routers and switches, the IS46TR16256A-125KBLA2 provides fast packet buffering and routing tables. Its 1600 MT/s speed and 20ns tRCD ensure low latency for high-throughput data processing. The 8-bank architecture allows concurrent access, improving efficiency. The 1.5V supply reduces power consumption in always-on network devices. The 96-TWBGA package fits dense line cards, and the RoHS compliance meets environmental standards.
Recommended
Industrial PCs
The IS46TR16256A-125KBLA2 is ideal for industrial PCs requiring reliable, high-capacity memory. Its 4Gb density supports demanding applications like machine vision and data acquisition. The 0Β°C to +95Β°C temperature range ensures operation in harsh factory environments. The 1.5V operation and self-refresh mode help manage power in continuous operation. The 96-TWBGA package provides robust solder joints for vibration resistance.
Recommended
Telecommunications Infrastructure
In base stations and telecom equipment, the IS46TR16256A-125KBLA2 provides high-bandwidth memory for signal processing and protocol handling. Its 1600 MT/s data rate and 12.8 GB/s bandwidth support high-speed data streams. The 8-bank design enables efficient multi-tasking. The 1.5V supply is compatible with standard telecom power rails. The 96-TWBGA package allows high-density memory arrays on line cards.
Recommended
Video Processing
The IS46TR16256A-125KBLA2 is well-suited for video processing systems requiring large frame buffers. Its 4Gb capacity can store multiple HD frames, and the 1600 MT/s speed ensures real-time processing. The 256Mx16 organization provides a wide data path for high-resolution video. The 1.5V operation reduces heat in continuous operation. The 96-TWBGA package is ideal for compact video capture cards.
Recommended
Data Acquisition Systems
In data acquisition systems, the IS46TR16256A-125KBLA2 provides high-speed, high-capacity buffering for analog-to-digital converters. Its 1600 MT/s data rate matches high-speed ADC outputs, and the 4Gb capacity stores large datasets. The 20ns tRCD ensures low latency for real-time data logging. The 1.5V supply is compatible with common ADC power domains. The 96-TWBGA package allows integration on compact DAQ boards.
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 | IS43TR16256AL-125KBL | MT41K256M16HA-125:E | K4B4G1646D-BYK0 |
|---|---|---|---|---|---|
| Package | 96-TWBGA (9x13) | 96-TWBGA (9x13) | 96-TWBGA (9x13) | 96-TWBGA (9x13) | 96-TWBGA (9x13) |
| Brand | ISSI | ISSI | ISSI | Micron | Samsung |
| Memory Size | 4 Gbit | 4 Gbit | 4 Gbit | 4 Gbit | 4 Gbit |
| Data Rate | 1600 MT/s | 1600 MT/s | 1600 MT/s | 1600 MT/s | 1600 MT/s |
| Supply Voltage | 1.5V | 1.5V | 1.5V | 1.5V | 1.5V |
| tRCD | 20 ns | 20 ns | 20 ns | 20 ns | 20 ns |
| Operating Temperature | 0Β°C to +95Β°C | 0Β°C to +95Β°C | -40Β°C to +95Β°C | 0Β°C to +95Β°C | 0Β°C to +95Β°C |
| Automotive Grade | No | No | Yes | No | No |
Key Differentiators
- Automotive grade option available (vs IS46TR16256B-125KBLA2)
- Cross-brand availability (vs MT41K256M16HA-125:E)
- Low-voltage support (vs K4B4G1646D-BYK0)
Design Notes
For high-speed DDR3 signals, maintain controlled impedance of 50 ohms for single-ended and 100 ohms differential for clock lines. Keep trace lengths matched within 50 mils for data and address buses. Use ground planes beneath the memory to reduce noise and ensure signal integrity.
Decouple VDD and VDDQ with 0.1uF and 1uF ceramic capacitors placed close to the power pins. Use a dedicated 1.5V supply with low ripple. The VREF pin should be bypassed with a 0.1uF capacitor to ground to maintain stable reference voltage.
The IS46TR16256A-125KBLA2 dissipates up to 0.435W at 290mA and 1.5V. Ensure adequate airflow or a thermal pad on the PCB to keep the case temperature below 95Β°C. In high-density designs, consider spacing between memory devices to avoid heat buildup.
Compliance Information
RoHS compliance confirmed from ISSI datasheet. Other compliance data not specified in provided sources.
