Overview
The IS43TR16256A-125KBLI is a 4Gb DDR3 SDRAM module produced by Integrated Silicon Solution Inc. (ISSI). This component is designed to provide high-speed data transfer rates and is suitable for a variety of applications, including automotive, communications, digital consumer, and industrial sectors. The module is available in different configurations and packages, making it versatile for various system requirements.
Key Specifications
| Parameter | Description |
|---|---|
| Configuration | 512Mx8, 256Mx16 |
| Package | 96-ball BGA (9mm x 13mm) for x16, 78-ball BGA (9mm x 10.5mm) for x8 |
| Voltage | Standard: VDD and VDDQ = 1.5V ± 0.075V, Low Voltage (L): VDD and VDDQ = 1.35V + 0.1V, -0.067V |
| System Frequency | Up to 1066 MHz |
| Internal Banks | 8 internal banks for concurrent operation |
| Pre-fetch Architecture | 8n-Bit pre-fetch architecture |
| CAS Latency | Programmable CAS Latency |
| Burst Length | Programmable Burst Length: 4 and 8 |
| Burst Sequence | Programmable Burst Sequence: Sequential or Interleave |
| Refresh Interval | 7.8 us (8192 cycles/64 ms) at Tc = -40°C to 85°C, 3.9 us (8192 cycles/32 ms) at Tc = 85°C to 105°C |
| Operating Temperature | Commercial (TC = 0°C to +95°C), Industrial (TC = -40°C to +95°C), Automotive A1 (TC = -40°C to +95°C), Automotive A2 (TC = -40°C to +105°C) |
Key Features
- High-speed data transfer rates with system frequency up to 1066 MHz
- 8 internal banks for concurrent operation
- 8n-Bit pre-fetch architecture
- Programmable CAS Latency, Additive Latency, and CAS WRITE latency (CWL) based on tCK
- Programmable Burst Length and Burst Sequence
- BL switch on the fly
- Auto Self Refresh (ASR) and Self Refresh Temperature (SRT)
- Partial Array Self Refresh
- Asynchronous RESET pin
- TDQS (Termination Data Strobe) supported (x8 only)
- OCD (Off-Chip Driver Impedance Adjustment) and Dynamic ODT (On-Die Termination)
- Driver strength: RZQ/7, RZQ/6 (RZQ = 240 Ω)
- Write Leveling
- Up to 200 MHz in DLL off mode
Applications
The IS43TR16256A-125KBLI is suitable for various applications across different industries, including:
- Automotive systems requiring high reliability and temperature tolerance
- Communications equipment needing high-speed data transfer
- Digital consumer devices such as smartphones, tablets, and laptops
- Industrial and medical devices that demand robust and reliable memory solutions
Q & A
- What is the maximum system frequency of the IS43TR16256A-125KBLI?
The maximum system frequency is up to 1066 MHz.
- What are the available configurations for this DDR3 SDRAM?
The configurations available are 512Mx8 and 256Mx16.
- What are the voltage options for this module?
The module supports standard voltage (VDD and VDDQ = 1.5V ± 0.075V) and low voltage (VDD and VDDQ = 1.35V + 0.1V, -0.067V).
- How many internal banks does this module have?
The module has 8 internal banks for concurrent operation.
- What is the pre-fetch architecture of this module?
The pre-fetch architecture is 8n-Bit.
- Can the CAS Latency be programmed?
- What are the programmable burst lengths and sequences?
The burst lengths can be programmed to 4 and 8, and the burst sequences can be either sequential or interleave.
- What is the refresh interval for this module?
The refresh interval is 7.8 us (8192 cycles/64 ms) at Tc = -40°C to 85°C and 3.9 us (8192 cycles/32 ms) at Tc = 85°C to 105°C.
- What are the operating temperature ranges for this module?
The operating temperature ranges include Commercial (TC = 0°C to +95°C), Industrial (TC = -40°C to +95°C), Automotive A1 (TC = -40°C to +95°C), and Automotive A2 (TC = -40°C to +105°C).
- Does this module support TDQS and OCD?
- What is the driver strength of this module?
The driver strength is RZQ/7, RZQ/6 (RZQ = 240 Ω).
