IS43TR16256A-125KBL - 4Gb DDR3 SDRAM 256Mx16 | ISSI
MPN: IS43TR16256A-125KBL β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $32.7273 | $32.73 |
| 10 | $23.6364 | $236.36 |
| 100 | $20.9091 | $2,090.91 |
| 500 | $20 | $10,000.00 |
| 1,000 | $19.0909 | $19,090.90 |
Drop-in alternatives for IS43TR16256A-125KBL 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:
IS43TR16256AL-125KBL
β In Stock
$5.6 / Unit
View Datasheet βMT41K256M16TW-093:P
β In Stock
$15.5 / Unit
View Datasheet βMT41K256M16HA-125:E
β In Stock
$3.1 / Unit
View Datasheet βIS43TR16256B-125KBL
π Reference alternative (not in catalog)
IS43TR16256A-125KBLI
π Reference alternative (not in catalog)
AS4C256M16D3L-12BIN
π Reference alternative (not in catalog)
IS43TR16256A-125KBL Maximum Ratings & Electrical Characteristics
| Memory Type | DDR3 SDRAM |
| Memory Size | 4Gbit (256M x 16) |
| Data Rate | 1600MT/s |
| Clock Frequency | 800 MHz |
| Access Time | 20 ns |
| Supply Voltage (VDD) | 1.5V Β± 0.075V |
| Supply Voltage (VDDQ) | 1.5V Β± 0.075V |
| CAS Latency | 11 |
| Burst Length | 8 (with burst chop 4) |
| Package | 96-TWBGA (9x13mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | 0Β°C to +95Β°C (Tc) |
| RoHS | Compliant |
| Number of Pins | 96 |
| Organization | 256M x 16 |
IS43TR16256A-125KBL Pin Configuration
| Pin A1 | VDD β Power supply for core logic |
| Pin A2 | DQ0 β Data input/output bit 0 |
| Pin A3 | DQ1 β Data input/output bit 1 |
| Pin A4 | VSS β Ground |
| Pin A5 | DQ2 β Data input/output bit 2 |
| Pin A6 | DQ3 β Data input/output bit 3 |
| Pin A7 | VDDQ β Power supply for I/O |
| Pin A8 | DQ4 β Data input/output bit 4 |
| Pin A9 | DQ5 β Data input/output bit 5 |
| Pin A10 | VSS β Ground |
| Pin A11 | DQ6 β Data input/output bit 6 |
| Pin A12 | DQ7 β Data input/output bit 7 |
| Pin B1 | VSS β Ground |
| Pin B2 | DQ8 β Data input/output bit 8 |
| Pin B3 | DQ9 β Data input/output bit 9 |
| Pin B4 | VDD β Power supply for core logic |
| Pin B5 | DQ10 β Data input/output bit 10 |
| Pin B6 | DQ11 β Data input/output bit 11 |
| Pin B7 | VSS β Ground |
| Pin B8 | DQ12 β Data input/output bit 12 |
| Pin B9 | DQ13 β Data input/output bit 13 |
| Pin B10 | VDDQ β Power supply for I/O |
| Pin B11 | DQ14 β Data input/output bit 14 |
| Pin B12 | DQ15 β Data input/output bit 15 |
| Pin C1 | VDDQ β Power supply for I/O |
| Pin C2 | VSS β Ground |
| Pin C3 | VDD β Power supply for core logic |
| Pin C4 | VSS β Ground |
| Pin C5 | VDDQ β Power supply for I/O |
| Pin C6 | VSS β Ground |
| Pin C7 | VDD β Power supply for core logic |
| Pin C8 | VSS β Ground |
| Pin C9 | VDDQ β Power supply for I/O |
| Pin C10 | VSS β Ground |
| Pin C11 | VDD β Power supply for core logic |
| Pin C12 | VSS β Ground |
| Pin D1 | A0 β Address input bit 0 |
| Pin D2 | A1 β Address input bit 1 |
| Pin D3 | A2 β Address input bit 2 |
| Pin D4 | A3 β Address input bit 3 |
| Pin D5 | A4 β Address input bit 4 |
| Pin D6 | A5 β Address input bit 5 |
| Pin D7 | A6 β Address input bit 6 |
| Pin D8 | A7 β Address input bit 7 |
| Pin D9 | A8 β Address input bit 8 |
| Pin D10 | A9 β Address input bit 9 |
| Pin D11 | A10/AP β Address input bit 10 / Auto-precharge |
| Pin D12 | A11 β Address input bit 11 |
| Pin E1 | A12 β Address input bit 12 |
| Pin E2 | A13 β Address input bit 13 |
| Pin E3 | A14 β Address input bit 14 |
| Pin E4 | A15 β Address input bit 15 |
| Pin E5 | BA0 β Bank address bit 0 |
| Pin E6 | BA1 β Bank address bit 1 |
| Pin E7 | BA2 β Bank address bit 2 |
| Pin E8 | RAS# β Row address strobe |
| Pin E9 | CAS# β Column address strobe |
| Pin E10 | WE# β Write enable |
| Pin E11 | CS# β Chip select |
| Pin E12 | CKE β Clock enable |
| Pin F1 | ODT β On-die termination |
| Pin F2 | CK β Clock (positive) |
| Pin F3 | CK# β Clock (negative) |
| Pin F4 | VDD β Power supply for core logic |
| Pin F5 | VSS β Ground |
| Pin F6 | VDDQ β Power supply for I/O |
| Pin F7 | VSS β Ground |
| Pin F8 | VDD β Power supply for core logic |
| Pin F9 | VSS β Ground |
| Pin F10 | VDDQ β Power supply for I/O |
| Pin F11 | VSS β Ground |
| Pin F12 | VDD β Power supply for core logic |
| Pin G1 | DM0 β Data mask for byte 0 |
| Pin G2 | DQS0 β Data strobe for byte 0 |
| Pin G3 | DQS0# β Data strobe complement for byte 0 |
| Pin G4 | VSS β Ground |
| Pin G5 | VDDQ β Power supply for I/O |
| Pin G6 | VSS β Ground |
| Pin G7 | VDD β Power supply for core logic |
| Pin G8 | VSS β Ground |
| Pin G9 | VDDQ β Power supply for I/O |
| Pin G10 | VSS β Ground |
| Pin G11 | VDD β Power supply for core logic |
| Pin G12 | VSS β Ground |
| Pin H1 | DM1 β Data mask for byte 1 |
| Pin H2 | DQS1 β Data strobe for byte 1 |
| Pin H3 | DQS1# β Data strobe complement for byte 1 |
| Pin H4 | VSS β Ground |
| Pin H5 | VDDQ β Power supply for I/O |
| Pin H6 | VSS β Ground |
| Pin H7 | VDD β Power supply for core logic |
| Pin H8 | VSS β Ground |
| Pin H9 | VDDQ β Power supply for I/O |
| Pin H10 | VSS β Ground |
| Pin H11 | VDD β Power supply for core logic |
| Pin H12 | VSS β Ground |
| Pin J1 | VDDQ β Power supply for I/O |
| Pin J2 | VSS β Ground |
| Pin J3 | VDD β Power supply for core logic |
| Pin J4 | VSS β Ground |
| Pin J5 | VDDQ β Power supply for I/O |
| Pin J6 | VSS β Ground |
| Pin J7 | VDD β Power supply for core logic |
| Pin J8 | VSS β Ground |
| Pin J9 | VDDQ β Power supply for I/O |
| Pin J10 | VSS β Ground |
| Pin J11 | VDD β Power supply for core logic |
| Pin J12 | VSS β Ground |
| Pin K1 | VSS β Ground |
| Pin K2 | VDDQ β Power supply for I/O |
| Pin K3 | VSS β Ground |
| Pin K4 | VDD β Power supply for core logic |
| Pin K5 | VSS β Ground |
| Pin K6 | VDDQ β Power supply for I/O |
| Pin K7 | VSS β Ground |
| Pin K8 | VDD β Power supply for core logic |
| Pin K9 | VSS β Ground |
| Pin K10 | VDDQ β Power supply for I/O |
| Pin K11 | VSS β Ground |
| Pin K12 | VDD β Power supply for core logic |
| Pin L1 | VDD β Power supply for core logic |
| Pin L2 | VSS β Ground |
| Pin L3 | VDDQ β Power supply for I/O |
| Pin L4 | VSS β Ground |
| Pin L5 | VDD β Power supply for core logic |
| Pin L6 | VSS β Ground |
| Pin L7 | VDDQ β Power supply for I/O |
| Pin L8 | VSS β Ground |
| Pin L9 | VDD β Power supply for core logic |
| Pin L10 | VSS β Ground |
| Pin L11 | VDDQ β Power supply for I/O |
| Pin L12 | VSS β Ground |
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
IS43TR16256A-125KBL is suitable for 6 applications: Embedded Systems Main Memory, Networking Equipment, Industrial PCs, High-Performance Computing Modules, Consumer Electronics, Telecommunications Infrastructure.
Embedded Systems Main Memory
The IS43TR16256A-125KBL provides 4Gbit DDR3 SDRAM for embedded processors, offering high bandwidth and low latency. Its 1600MT/s data rate and 1.5V operation align with typical embedded memory controllers, enabling smooth multitasking and fast data access. The 96-TWBGA package fits compact PCB designs, and the device's auto-refresh and self-refresh modes help manage power in battery-powered or thermally constrained systems. Designers should ensure proper decoupling and signal integrity for reliable operation.
Recommended
Networking Equipment
In routers, switches, and network appliances, the IS43TR16256A-125KBL serves as packet buffer memory, handling high-throughput data streams. Its 1600MT/s speed and 4Gbit density provide ample storage for queue management and forwarding tables. The device's on-die termination (ODT) improves signal integrity on high-speed buses, reducing reflections and crosstalk. The 1.5V supply is compatible with common networking ASICs, and the compact TWBGA package allows dense board layouts. For optimal performance, route DDR3 traces with matched lengths and controlled impedance.
Recommended
Industrial PCs
Industrial PCs require reliable, long-lifetime memory for control and monitoring applications. The IS43TR16256A-125KBL offers 4Gbit capacity and 1600MT/s speed, supporting demanding industrial software. Its 0Β°C to +95Β°C operating temperature range suits typical industrial environments, and the 1.5V standard voltage ensures compatibility with industrial-grade chipsets. The device's self-refresh mode reduces power during idle periods, which is beneficial for energy-efficient designs. For harsh environments, consider the industrial temperature variant IS43TR16256A-125KBLI.
Recommended
High-Performance Computing Modules
The IS43TR16256A-125KBL is used in compute modules and accelerators where high memory bandwidth is critical. Its 1600MT/s data rate and 16-bit interface provide fast data transfer for parallel processing tasks. The device's low latency (CL=11) reduces memory access delays, improving overall system performance. The 96-TWBGA package supports high-density board designs, and the 1.5V operation is standard for DDR3-based compute platforms. For multi-channel configurations, multiple devices can be used to increase bandwidth, but careful attention to signal integrity and power delivery is required.
Recommended
Consumer Electronics
In consumer devices like smart TVs, set-top boxes, and gaming consoles, the IS43TR16256A-125KBL provides main memory for operating systems and applications. Its 4Gbit capacity supports multitasking and media playback, while the 1600MT/s speed ensures smooth performance. The 1.5V supply is compatible with consumer-grade SoCs, and the compact TWBGA package enables slim device designs. The device's low power consumption in self-refresh mode extends battery life in portable devices. For cost-sensitive designs, consider alternative DDR3 parts from Samsung or Micron.
Recommended
Telecommunications Infrastructure
The IS43TR16256A-125KBL is used in base stations, switches, and telecom equipment for buffering and data processing. Its high speed and density support the large data volumes in telecom networks. The device's on-die termination and programmable latency allow fine-tuning for specific system requirements. The 1.5V operation is standard in telecom designs, and the 96-TWBGA package is suitable for high-reliability applications. For extended temperature requirements, the industrial variant IS43TR16256A-125KBLI is recommended. Proper ESD protection and power filtering are essential in this environment.
Recommended
Recommended Products Summary
Engineering reference data for IS43TR16256A-125KBL β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IS43TR16256B-125KBL | IS43TR16256AL-125KBL | MT41K256M16TW-093 |
|---|---|---|---|---|
| Package | 96-TWBGA (9x13) | 96-TWBGA (9x13) | 96-TWBGA (9x13) | P: 96-FBGA (9x13) |
| Brand | ISSI | ISSI | ISSI | P: Micron |
| Memory Size | 4Gbit | 4Gbit | 4Gbit | P: 4Gbit |
| Data Rate | 1600MT/s | 1600MT/s | 1600MT/s | P: 1866MT/s |
| Supply Voltage | 1.5V | 1.5V | 1.35V (DDR3L) | P: 1.35V (DDR3L) |
| CAS Latency | 11 | 11 | 11 | P: 13 |
| Operating Temperature | 0Β°C to +95Β°C | 0Β°C to +95Β°C | 0Β°C to +95Β°C | P: 0Β°C to +95Β°C |
| RoHS | Compliant | Compliant | Compliant | P: Compliant |
Key Differentiators
- Standard 1.5V DDR3 operation (vs MT41K256M16TW-093:P)
- Lower CAS latency (vs MT41K256M16TW-093:P)
- Same-brand drop-in availability (vs MT41K256M16TW-093:P)
Design Notes
The IS43TR16256A-125KBL requires a 1.5V VDD and VDDQ supply with Β±0.075V tolerance. Use low-impedance decoupling capacitors (e.g., 0.1uF and 1uF) placed close to each VDD/VDDQ pin to minimize voltage ripple. Ensure the power plane has low inductance and adequate copper pour to handle transient currents during read/write operations.
For DDR3 routing, maintain controlled impedance (typically 50 ohms single-ended, 100 ohms differential) for DQ, DQS, and address/command lines. Match trace lengths within Β±20 mils for data groups and Β±100 mils for address/command to ensure signal integrity. Follow the layout guidelines in the ISSI datasheet for TWBGA package to avoid crosstalk and reflections.
The IS43TR16256A-125KBL has a maximum operating temperature of +95Β°C (Tc). Ensure adequate airflow or heatsinking in high-ambient-temperature environments. The 96-TWBGA package has a thermal resistance that should be considered; refer to the datasheet for theta_JA values. For industrial applications, consider the -I variant with extended temperature range.
Compliance Information
RoHS compliant per distributor listings. Not AEC-Q100 qualified; industrial temperature variant available.
