Diodes Incorporated PI2SSD3212A1 14-Bit 2:1 eMMC/DDR Signal Switch
Diodes Inc. PI2SSD3212A1 1.8V 14-Bit 2:1 eMMC/DDR Signal Switch is designed for eMMC HS200 and HS400 bus with speeds up to 400MB/s, 1.8V or 1.2V I/Os. HS200 is the high-speed interface timing mode of up to 200MB/s at a 200MHz single data rate bus, and HS400 up to 400MB/s at a 200MHz dual data rate bus. In addition, it supports CMOS select input signals, and POD_12, SSTL_135, SSTL_15, or SSTL_18 signaling. It can be used for DDR2, DDR3, or DDR4 memory bus switches with speeds up to 5Gbps. PI2SSD3212A1 supports DDR3 800Mbps to 2133Mbps, DDR4 1600Mbps to 4266Mbps.
The PI2SSD3212A1 has a 1:2 demux or 2:1 mux topology. All 14-bit channels can be switched to one of the two ports with the SEL input. It also allows all ports to be disconnected. The PI2SSD3212A1 uses Diodes Inc.'s proprietary high-speed switch technology, providing consistent high bandwidth across all channels with minimal cross-talk, insertion loss, and bit-to-bit skew. It is available in a 48-pin TFBGA 4.5mm x 4.5mm x 0.8mm package.
Features
- 14-bit 2:1 switch that supports eMMC HS200 and HS400 up to 400MB/s and DDR3 800Mbps to 2133Mbps, DDR4 1600Mbps to 4266Mbps
- Single power supply of 1.8V
- SEL and global enable
- 150μA typical operating current at 1.8V VDD
- High impedance and low Coff channel output when disabled or deselected
- Low 4Ω typical RON
- -3dB bandwidth of 2.8GHz
- Low -0.35dB insertion loss at 400MHz
- Low -23dB return loss at 400MHz
- Low cross-talk for high speed channels of -26dB at 400MHz
- High -28dB off-isolation at 400MHz
- Low 10ps typical bit-to-bit skew
- 2KV HBM ESD
- 48-pin, 4.5mm x 4.5mm x 0.8mm, TFBGA (NC) packaging
- Lead-free and RoHS-compliant
- Halogen and antimony-free Green device
Applications
- High-speed multiplexing
- eMMC modules
- DDR3/DDR4 memory bus systems
Additional Resources
Block Diagram
