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IS61C25616AS-25TLI is listed in the Memory IC range at ChipApex. The manufacturer field lists ISSI, Integrated Silicon Solution Inc. Its product description is IC SRAM 4MBIT PARALLEL 44TSOP II. Review the specifications below when checking this part for your BOM.
Memory IC specifications for IS61C25616AS-25TLI
- Description：IC SRAM 4MBIT PARALLEL 44TSOP II
- Series：-
- Mfr：ISSI, Integrated Silicon Solution Inc
- Package：Tray
- Memory Type：Volatile
- Memory Format：SRAM
- Technology：SRAM - Asynchronous
- Memory Size：4Mbit
- Memory Organization：256K x 16
- Memory Interface：Parallel
- Clock Frequency：-
- Write Cycle Time - Word, Page：25ns
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：44-TSOP (0.400", 10.16mm Width)
- Supplier Device Package：44-TSOP II
- Access Time：25 ns
- Grade：-
- Qualification：-
Memory IC datasheet and documents for IS61C25616AS-25TLI
Memory IC Overview
The IS61C25616AS-25TLI is a 4-Mbit (256K x 16) asynchronous static random-access memory manufactured by ISSI. It operates within a voltage range of 4.5V to 5.5V and features a 25ns access time. The device utilizes a parallel interface and is housed in a 44-pin TSOP II surface-mount package. Designed for industrial applications, it supports a temperature range from -40°C to +85°C with a maximum active current of 25mA.
Memory IC Feature Summary
- Asynchronous operation without clock synchronization requirements
- TTL-compatible logic levels for standard digital interfacing
- High-speed data retrieval with 25ns access latency
- Industrial-grade thermal stability for harsh environments
Memory IC Applications
- Industrial control systems requiring reliable non-volatile-like storage
- Embedded systems utilizing 5V logic architectures
- Data buffering in high-speed parallel processing units
- Automotive electronics operating under strict temperature constraints
Memory IC Procurement Notes
Verify the specific suffix 'AS' against the manufacturer's latest datasheet to confirm voltage and speed grades. Ensure the 44-TSOP II footprint matches the target PCB design. Confirm RoHS compliance status directly with the supplier or official documentation before finalizing procurement orders.
Memory IC Selection Notes
Select this component when a 5V supply is mandatory and 25ns latency fits the system timing budget. Compare against the IS61WV series if lower power consumption at reduced voltages is required. Verify that the 256Kx16 organization aligns with the address and data bus width of the host microcontroller.
Memory IC Part Context
This part belongs to the IS61C family of high-speed CMOS static RAMs. It serves as a legacy 5V solution compared to modern low-voltage alternatives. The TSOP II package offers a compact form factor suitable for space-constrained industrial and commercial electronic designs requiring robust memory storage.
Memory IC Replacement Considerations
The IS61C25616AL-10TLI offers faster 10ns performance but requires identical pinout verification. For lower voltage applications, the IS61WV25616BLS-25TLI provides wide-range voltage support. Always validate electrical characteristics and package dimensions before substituting.
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