Description:The 71256SA 5V CMOS SRAM is organized as 32K x 8. All bidirectional inputs and outputs of the 71256SA are TTL-compatible and operation is from a single 5V supply. Fully static asynchronous circuitry is used, requiring no clocks or refresh for operation.
Renesas provides a recommended PCB layout guide in their application note (APN) documents, which can be found on their website. The guide includes thermal vias, heat sink recommendations, and PCB layer stack-up suggestions to ensure optimal thermal performance.
Renesas recommends a specific power sequencing scheme to ensure proper device operation. This information can be found in the device's user manual or application notes. Typically, the sequence involves powering up the VCCIO and VCC cores in a specific order, followed by the AVCC and DVCC supplies.
Renesas recommends using high-quality, low-ESR decoupling capacitors with a value of 0.1 μF to 1 μF, placed as close as possible to the device's power pins. The capacitor selection should be based on the device's operating frequency, power consumption, and PCB layout.
Renesas provides guidelines for JTAG interface handling during production testing in their device documentation. This includes information on JTAG pin connections, signal levels, and testing procedures to ensure reliable device programming and testing.
Renesas provides thermal design guidelines and thermal models (e.g., JEDEC JESD51-14) to help designers estimate the device's junction temperature. This information can be used to select suitable heat sinks, thermal interfaces, and PCB materials to ensure reliable operation in high-temperature environments.
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71256SA25TPG Overview
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