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71V3579S80PFGI
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Product Detailed Parameters
- Description：IC SRAM 4.5MBIT PARALLEL 100TQFP
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tray
- Memory Type：Volatile
- Memory Format：SRAM
- Technology：SRAM - Synchronous, SDR
- Memory Size：4.5Mbit
- Memory Organization：256K x 18
- Memory Interface：Parallel
- Clock Frequency：100 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 (14x14)
- Access Time：8 ns
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Overview
The 71V3579S80PFGI is a 3.3V CMOS synchronous flow-through SRAM organized as 256K x 18, providing a total storage capacity of 4.5Mb. It features an access time of 8 ns and supports clock frequencies up to 100 MHz. The device operates with a supply voltage range of 3.135V to 3.465V and includes 3.3V I/O compatibility. It is housed in a 100-pin TQFP package and is rated for industrial temperature ranges from -40°C to +85°C.
Feature Summary
- Supports high-speed synchronous burst operations with interleaved or linear modes selectable via the LBO input.
- Features self-timed write cycles controlled by global write control (GW), byte write enable (BWE), and individual byte writes (BWx).
- Includes power-down functionality managed by the ZZ input to minimize standby power consumption.
Applications
- High-performance embedded systems requiring fast data buffering.
- Industrial equipment needing reliable memory solutions within extended temperature ranges.
- Network infrastructure devices utilizing synchronous burst transfer capabilities.
Procurement Notes
Verify component authenticity through authorized Renesas distributors due to potential obsolescence risks. Confirm RoHS compliance status as historical records indicate non-compliance for some variants. Ensure the specific suffix PFGI matches the required 100-TQFP package and industrial temperature grade before finalizing procurement orders.
Selection Notes
Select this part when a 256K x 18 organization is required alongside 8 ns access speeds. It serves as a direct functional replacement for IDT71V3579S80PFI. Consider ISSI alternatives like IS61LF25618A-7.5TQLI if pin-compatible substitutes are needed for continued production.
Part Context
This component belongs to the 71V3579 family of 3.3V synchronous SRAMs manufactured by Renesas Electronics. It shares architectural similarities with other members like the 71V3577 and 71V3579S85PFG8, differing primarily in speed grades and organizational configurations while maintaining consistent interface protocols.
Replacement Considerations
The IDT71V3579S80PFI is listed as obsolete. Verified similar replacements include IS61LF25618A-7.5TQLI and IS61LF25618EC-7.5TQLI from ISSI. Verify electrical parameter alignment before substitution.
