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Product Detailed Parameters
- Description:IC SRAM 4.5MBIT PAR 100TQFP
- Series:-
- Mfr:IDT, Integrated Device Technology Inc
- Package:Bulk
- Memory Type:Volatile
- Memory Format:SRAM
- Technology:SRAM - Synchronous, SDR
- Memory Size:4.5Mbit
- Memory Organization:128K x 36
- Memory Interface:Parallel
- Clock Frequency:166 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-TQFP (14x20)
- Access Time:3.5 ns
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Overview
The IDT71V25761S166PFI is a high-speed Synchronous SRAM organized as 256K x 36 or 512K x 18. It operates with a 3.3V core power supply and supports 2.5V I/O levels. The device features pipelined outputs, an internal burst counter, and single-cycle deselect capability. It is designed for high-performance systems requiring fast data access and efficient bus utilization through synchronous interface protocols.
Feature Summary
- Supports high system speeds with clock access times up to 166 MHz
- Features pipelined outputs for improved throughput in fully pipelined applications
- Includes an internal burst address counter for sequential data access
- Allows single-cycle deselect to terminate burst sequences early
Applications
- High-speed networking equipment requiring low-latency memory buffering
- Telecommunications infrastructure utilizing synchronous data processing
- Industrial control systems needing reliable high-bandwidth storage
- Consumer electronics demanding fast data retrieval capabilities
Procurement Notes
Verify the specific speed grade suffix (e.g., 166) matches the required clock frequency for your design. Confirm that the 3.3V core voltage and 2.5V I/O supply requirements align with your system's power rails. Ensure the package type corresponds to your PCB footprint specifications before ordering.
Selection Notes
Select this component when a 3.3V synchronous SRAM with pipelined output architecture is required. It is suitable for designs needing burst mode operations with flexible deselect options. Consider the 2.5V I/O compatibility if interfacing with lower voltage logic controllers while maintaining a 3.3V core for performance.
Part Context
This part belongs to the IDT 71V25 series of Synchronous ZBT SRAMs. These devices are engineered to eliminate dead cycles between read and write operations, enhancing system efficiency. The series offers various configurations and speed grades to accommodate different bandwidth and latency requirements in complex digital systems.
Replacement Considerations
Check for compatible parts within the same IDT 71V25 family that share identical pinouts and electrical characteristics. Verify that any substitute maintains the 3.3V core and 2.5V I/O specifications to ensure direct interoperability without circuit modification.
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