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DS3640B+TRL is listed in the Specialized ICS range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is IC SECURITY MANAGER 25CSBGA. Review the specifications below when checking this part for your BOM.
Specialized ICS specifications for DS3640B+TRL
- Description：IC SECURITY MANAGER 25CSBGA
- Package：Tape & Reel (TR)
- Series：DeepCover®
- Mfr：Analog Devices Inc./Maxim Integrated
- Type：Security Manager
- Applications：-
- Mounting Type：Surface Mount
- Package / Case：25-LFBGA, CSPBGA
- Supplier Device Package：25-CSBGA (5x5)
- Grade：-
- Qualification：-
Specialized ICS datasheet and documents for DS3640B+TRL
Specialized ICS Overview
The DS3640B+TRL is a DeepCover Security Manager featuring 1KB of nonimprinting battery-backed SRAM for encryption key storage. It integrates an I2C-compatible interface, real-time clock (RTC), CPU supervisor, watchdog timer, and on-chip temperature sensor. The device operates on a single 3.0V to 3.6V supply and includes four tamper-detect comparators, three logic inputs, and a random number generator. It utilizes a 25-pin CSBGA package with no horizontally exposed leads to enhance physical security.
Specialized ICS Feature Summary
- 1024-byte nonimprinting key memory with high-speed erase
- Real-time clock with leap year compensation valid up to 2100
- Four general-purpose tamper-detect comparators and three logic inputs
- On-chip programmable temperature sensing with rate-of-change detector
Specialized ICS Applications
- Point-of-Sale Terminals
- Gaming
- Routers/Switches
- IT Security
- Alarm Systems
Specialized ICS Procurement Notes
Verify the TRL suffix indicates tape-and-reel packaging. Confirm RoHS compliance via the '+' designation. Check current availability as distribution status may vary. Ensure the 25-CSBGA footprint matches design requirements.
Specialized ICS Selection Notes
Select this component for applications requiring secure key storage with tamper detection. Verify I2C compatibility with the host controller. Ensure operating voltage remains within 3.0V to 3.6V. Consider the 25-CSBGA package constraints for PCB layout.
Specialized ICS Part Context
The DS3640B+ belongs to the DeepCover family of embedded security solutions. It provides multi-layered physical security for sensitive data. The B+ variant specifies the -40°C to +85°C industrial temperature range.
Specialized ICS Replacement Considerations
Consult official documentation for verified substitutes. No public cross-reference data is available in the source material.
Specialized ICS FAQ
What is the function of the nonimprinting memory?
The 1KB key memory is constantly complemented in the background to prevent oxide stress and memory imprinting.
How does the device handle primary power failure?
An external battery source is automatically switched in to keep the key memory, RTC, and tamper-detection circuitry active.
What interfaces are supported?
Access to registers and memory is conducted through an I2C-compatible interface.
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