AS7C1024B-20TCNTR

Overview

The AS7C1024B-20TCNTR is a 1 Mbit (128K x 8) asynchronous static random-access memory (SRAM) manufactured by Alliance Memory. It operates within a supply voltage range of 4.5 V to 5.5 V, with a maximum power consumption of 80 mA. The device features a typical access time of 20 ns and supports parallel interface communication. It is housed in a 32-pin Thin Small Outline Package (TSOP-I) designed for surface-mount technology. The component is rated for commercial operating temperatures between 0°C and +70°C.

Feature Summary

• Asynchronous operation with fast 20 ns access times for efficient data retrieval
• Single 5 V power supply compatibility for standard logic systems
• Surface-mount TSOP-32 package optimized for compact PCB layouts

Applications

• General-purpose data storage in embedded microcontroller systems
• Cache memory buffers for high-speed processing units
• Industrial control system data logging and temporary storage

Procurement Notes

Verify the specific suffix TCNTR confirms tape-and-reel packaging rather than tube or tray formats when integrating into automated assembly lines. Confirm RoHS compliance status matches current regulatory requirements for your target market. Ensure voltage specifications align with your system's 5 V rail stability before finalizing procurement orders.

Selection Notes

Select this component when a 1 Mbit capacity is required with 20 ns speed performance in a 5 V environment. Compare against faster variants like the -12 series if higher throughput is needed, or lower voltage options if power efficiency is critical. The TSOP-32 footprint must be validated against existing board space constraints and thermal management capabilities.

Part Context

This part belongs to the AS7C1024B family of 1 Mbit SRAMs from Alliance Memory. It shares architectural similarities with other members but differs in speed grade and packaging. The 'TR' suffix typically denotes reel packaging, distinguishing it from tube-packaged equivalents like the AS7C1024B-20TCN.

FAQ

What is the difference between AS7C1024B-20TCN and AS7C1024B-20TCNTR?

The primary difference is the packaging format. The AS7C1024B-20TCN comes in a tube, while the AS7C1024B-20TCNTR is supplied in a tape and reel for automated surface-mount assembly.

Is this SRAM compatible with 3.3 V logic levels?

No, the AS7C1024B-20TCNTR is specified for a 4.5 V to 5.5 V supply voltage range and is not designed for 3.3 V operation.