Systems and methods for providing load isolation in a solid-state device
View Patent ↗Systems for automatically calibrating a storage memory controller are disclosed. In some embodiments, the systems may be realized as a solid state device system with an electro-static discharge (ESD) protection capability. The system can include a memory controller electrically coupled to a channel, where the memory controller is configured to select at least one of a plurality of flash memory devices. The system can also include at least one isolation device including an ESD protection circuit, configured to electrically couple the channel to the at least one of the plurality of flash memory devices and to decouple the channel from the remaining of the plurality of flash memory devices.
1. A solid state device system with an electro-static discharge (ESD) protection capability, the system comprising:
a memory controller electrically coupled to a channel, wherein the memory controller is configured to select at least one of a plurality of flash memory devices; and
at least one isolation device comprising an ESD protection circuit, configured to electrically couple the channel to the at least one of the plurality of flash memory devices and to decouple the channel from the remaining of the plurality of flash memory devices.
2. The solid state device system of claim 1 , wherein the ESD protection circuit comprises a clamping diode configured to clamp a positive ESD pulse to a positive power supply.
3. The solid state device system of claim 1 , wherein the ESD protection circuit comprises a clamping diode configured to clamp a negative ESD pulse to ground.
4. The solid state device system of claim 1 , wherein the at least one isolation device is arranged in a tree topology.
5. The solid state device system of claim 4 , wherein the tree topology comprises a binary tree topology.
6. The solid state device system of claim 1 , wherein the memory controller is configured to send a control signal to the at least one isolation device to cause the at least one isolation device to couple the channel to the at least one of the plurality of flash memory devices and to decouple the channel from the remaining of the plurality of flash memory devices.
7. The solid state device system of claim 1 , wherein the memory controller is configured to send an output enable signal,
wherein if the output enable signal is in a first state, the at least one isolation device is configured to decouple each of the plurality of flash memory devices from the channel, and
wherein if the output enable signal is in a second state, the at least one isolation device is configured to couple at least one of the plurality of flash memory devices to the channel.
8. The flash memory system of claim 7 , wherein the at least one isolation device is configured to decouple each of the plurality of flash memory devices from the memory controller by decoupling itself from a power supply.
9. A flash memory system with an electro-static discharge (ESD) protection capability, the system comprising:
a plurality of flash memory devices; and
a multiplexing device comprising an ESD protection circuit, configured to electrically couple one of the plurality of flash memory devices to a channel and to decouple the remaining of the plurality of flash memory devices from the channel.
10. The flash memory system of claim 9 , wherein the ESD protection circuit comprises a clamping diode configured to clamp a positive ESD pulse to a positive power supply.
11. The flash memory system of claim 9 , wherein the ESD protection circuit comprises a clamping diode configured to clamp a negative ESD pulse to ground.
12. The flash memory system of claim 9 , wherein the multiplexing device is configured to receive an output enable signal,
wherein if the output enable signal is in a first state, the multiplexing device is configured to decouple each of the plurality of flash memory devices from the channel, and
wherein if the output enable signal is in a second state, the multiplexing device is configured to couple at least one of the plurality of flash memory devices to the channel.
13. The flash memory system of claim 12 , wherein the multiplexing device is configured to decouple each of the plurality of flash memory devices from the memory controller by decoupling itself from a power supply.
14. The flash memory system of claim 9 , wherein the multiplexing device comprises at least one isolation device arranged in a tree topology.
15. An electrical board, with an electro-static discharge (ESD) protection capability, for a solid state device system, comprising:
a plurality of electrical channels, configured to be coupled to one or more flash memory devices; and
a plurality of isolation devices comprising an ESD protection circuit, wherein each of the plurality of isolation devices is disposed between at least two of the plurality of electrical channels, further wherein the plurality of isolation devices is configured to electrically couple one of the flash memory devices to an output port and to decouple the remaining of the flash memory devices from the output port.
16. The electrical board of claim 15 , wherein the ESD protection circuit comprises a clamping diode configured to clamp a positive ESD pulse to a positive power supply.
17. The electrical board of claim 15 , wherein the ESD protection circuit comprises a clamping diode configured to clamp a negative ESD pulse to ground.
18. The electrical board of claim 15 , further comprising a memory controller electrically coupled to the output port, wherein the memory controller is further configured to provide a control signal to the plurality of isolation devices to cause the plurality of isolation devices to couple the one of the flash memory devices to the output port and to decouple the remaining of the flash memory devices from the output port.
19. The electrical board of claim 15 , wherein the memory controller is further configured to provide an output enable signal,
wherein if the output enable signal is in a first state, the plurality of isolation devices is configured to decouple each of the flash memory devices from the output port, and
wherein if the output enable signal is in a second state, the plurality of isolation devices is configured to couple at least one of the flash memory devices to the output port.
20. The electrical board of claim 15 , wherein the plurality of isolation devices are arranged in a tree topology.