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IS61NLF51236B-6.5TQLI is listed in the Memory IC range at ChipApex. The manufacturer field lists ISSI, Integrated Silicon Solution Inc. Its product description is IC SRAM 18MBIT PAR 100LQFP. Review the specifications below when checking this part for your BOM.
Memory IC specifications for IS61NLF51236B-6.5TQLI
- Description：IC SRAM 18MBIT PAR 100LQFP
- Series：-
- Mfr：ISSI, Integrated Silicon Solution Inc
- Package：Tray
- Memory Type：Volatile
- Memory Format：SRAM
- Technology：SRAM - Synchronous, ZBT
- Memory Size：18Mbit
- Memory Organization：512K x 36
- Memory Interface：Parallel
- Clock Frequency：133 MHz
- Write Cycle Time - Word, Page：-
- Voltage - Supply：3.135V ~ 3.465V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：100-LQFP
- Supplier Device Package：100-LQFP (14x20)
- Access Time：6.5 ns
Memory IC datasheet and documents for IS61NLF51236B-6.5TQLI
Memory IC Overview
The IS61NLF51236B-6.5TQLI is an 18Mb synchronous static RAM organized as 512K words by 36 bits, fabricated using advanced CMOS technology. It features a 'no wait' state architecture that eliminates wait cycles during read-to-write or write-to-read bus transitions. The device supports a maximum clock frequency of 133 MHz with a cycle time of 7.5 ns and a clock access time of 6.5 ns. It operates with a VDD supply of 3.3V (±5%) and a VDDQ I/O supply of 3.3V or 2.5V (±5%). The component is housed in a 100-pin QFP package.
Memory IC Feature Summary
- Eliminates wait cycles between read and write operations through a 'no wait' state architecture
- Supports interleaved or linear burst sequences via the MODE input pin
- Features individual byte write control for precise data management
- Includes JTAG boundary scan capability for BGA packages
Memory IC Applications
- Networking equipment
- Communications systems
- High-performance embedded memory applications
Memory IC Procurement Notes
Verify the specific suffix 'LI' against the manufacturer's current documentation to confirm lead-free compliance and RoHS status. Ensure the selected voltage configuration matches the required VDD and VDDQ levels for your system design. Confirm the 100-pin QFP package availability and temperature range requirements before finalizing procurement orders.
Memory IC Selection Notes
Select this component when a high-speed synchronous SRAM with a 'no wait' state is required for networking or communications. Choose the NLF variant specifically for 3.3V core and 3.3V/2.5V I/O operation. Consider the 100-pin QFP package if surface mount space constraints align with its dimensions. Verify burst sequence requirements to configure the MODE pin correctly.
Memory IC Part Context
This part belongs to the IS61NLF/NVF/NVVF family of 18Mb synchronous SRAMs from Integrated Silicon Solution Inc. The family includes variants with different core voltages and I/O standards, such as 2.5V and 1.8V options. The 'L' designation typically indicates lead-free manufacturing processes compliant with environmental directives.
Memory IC Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material.
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