CY14B104L-BA20XCT

Memory IC Overview

The CY14B104L-BA20XCT is a 4 Mbit (512K x 8) non-volatile static RAM utilizing QuantumTrap technology. It features a 20 ns access time and operates on a single 3V power supply within the 2.7V to 3.6V range. The device supports parallel interface operations with hardware, software, or automatic store capabilities triggered by power down. It offers infinite read/write cycles for SRAM data and up to 200,000 STORE cycles to nonvolatile elements, ensuring 20-year data retention. The component is housed in a 48-ball FBGA package.

Memory IC Feature Summary

• Integrates fast static RAM with embedded QuantumTrap nonvolatile memory cells for instant data preservation.
• Supports automatic STORE operations upon power loss using an external capacitor connected to the VCAP pin.
• Provides multiple storage initiation methods including hardware control via HSB pin, software address sequences, and AutoStore.
• Ensures data integrity during low voltage conditions by inhibiting write operations until stable power is restored.

Memory IC Applications

• Industrial control systems requiring persistent configuration data
• Medical devices needing reliable parameter storage without battery backup
• Automotive electronics demanding high endurance and temperature stability

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the required package type and operating temperature range. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the design includes the necessary VCAP capacitor as specified in the datasheet for proper AutoStore functionality.

Memory IC Selection Notes

Select this part when infinite SRAM write endurance is required alongside nonvolatile data retention. It serves as a drop-in replacement for standard SRAM where power loss protection is critical. Consider the 48-ball FBGA package constraints and thermal resistance values during PCB layout planning.

Memory IC Part Context

This component belongs to the CY14B104 family of nvSRAMs, which also includes the 16-bit wide CY14B104N variant. Both share identical architecture and features but differ in organization and pinout configurations. The BA20XCT designation specifically identifies the commercial grade version in the 48-ball FBGA package.

Memory IC Replacement Considerations

CY14B104L-BA20XIT

Memory IC FAQ

How is the AutoStore function disabled?

AutoStore can be disabled by executing a specific six-address read sequence ending at address 0x8B45. A manual STORE operation must follow to save this state through subsequent power cycles.

What is the role of the HSB pin?

The Hardware Store Busy (HSB) pin initiates a STORE operation when driven LOW and indicates busy status during STORE or RECALL cycles. It remains HIGH if unconnected.