ZITN LHM128MB and LHM256MB High-Temperature Memories are highly reliable NOR Flash memories operated via an SPI serial communication interface. They feature fast read/write capabilities across extreme temperatures, high reliability, and excellent performance. These memories can operate for extended periods in harsh environments ranging from -45°C to +210°C.
Storage Capacity
- LHM128MB: Divided into 2 Banks
- LHM256MB: Divided into 4 Banks
- Each Bank: 64 MBytes, with independent addresses starting from 0
- Each Sector: 4 KBytes
- Each Page: 256 Bytes
Specification Parameters
|
Item |
LHM128MB |
LHM256MB |
|
Temperature |
-45℃~+210℃ |
|
|
Maximum Operating Current |
50mA write;40mA read |
|
|
Standby Quiescent Current |
<100μA |
|
|
Maximum Data Retention Time |
≥500h |
|
|
Lifetime |
≥2000h |
|
|
Read Rate |
5MB/s |
|
|
Write Rate |
128KB/s |
|
|
Operating Voltage |
2.7V~3.6V |
|
|
Package |
16PIN DIP Lead-Free Package |
|
|
Dimensions |
21.6mm* 15mm |
25mm*20. 1mm |
ZITN High-Temperature Series NOR Flash Memory: MCM Process
The core of ZITN High-Temperature Series NOR Flash Memory adopts the MCM (Multi-Chip Module) thick-film hybrid integrated circuit process. It fundamentally addresses the three core pain points faced by electronic devices in oil well logging while-drilling instruments-high-temperature failure of electronic components, electrical connection failure, and insufficient circuit shock resistance-from the perspectives of principle and structure.
Compared with the traditional high-temperature PCB solution, this technology has significant advantages:
- Gold wire bonding reduces solder joints, ensuring stable connections that are not easy to fall off;
- The integrated design of the framework and circuit enables the matching of thermal expansion coefficients, preventing warping and deformation;
- The sintered sealed connector features flexible connection, eliminating the risk of failure;
- High thermal conductivity facilitates rapid heat dissipation of power devices;
- The sealed package is resistant to salt spray corrosion, making it suitable for offshore operation environments;
- Modular assembly shortens on-site maintenance time. Additionally, it offers excellent confidentiality and is difficult to copy or crack.
- This technology provides core support for high-reliability applications under extreme high-temperature working conditions.
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