Project Description

S881 PCIE-I/II SD/MMC/eMMC Modules Solid State Disk (SSD) Controller

S881S88x are pioneer controllers explored a new modularization method for SSD vendors to apply standard memory card modules like SD/MMC/eMMC modules instead of flash memory chips in manufacturing SSD products. S88x comes as a multiplier to combine multiple memory card modules together and connected to a high speed PCIE interface with up to 5Gb/s data transfer rate.

S86x is distinguishing in data security systems. It is integrated with not only the most popular data encryption & decryption algorithms, such as AES, ECC, SHA, GOST, but also China Commercial Algorithms including SM2, SM3. and SM4. Because of all algorithms implemented by hardware circuits, any preferred algorithm can be activated by firmware and does not hurt system performance.
S88x has a DDR interface for high-end customers to boost system performance by external DRAM chip per demands.

Key Features

PCIE interface
Compliant with PCI Express Base Spec. Revision 2.1.
PCIE l/ll interface with 2.5Gbps/5.0Gbps auto-negotiation.
Supports AHCI, IDE.NVMe.
Supports Native Command Queuing (NCQ).
Supports TRIM, S.M AR.T.

Memory Card Interface
Compliant with eMMC 5.0, MMC 4.5, SD3.0
Max. Speed: 400MB/s(Read), 300MB/s(Write)

Multiple Channel Controller Units (CCUs)
Each CCU has its own RISC CPU embedded
Up to 5 CCUs. Max.10 channels.
Configurable channel number: 1,2,4,5,8,10
Multi-partitions, Secured partitions

Built-In Encryption/Decryptlon engines
AES-128/256, GOST.DES/3DES. ECC, SHA1/SHA2, RSA-1024/2048
China Commercial Algorithms (SM2, SM3, SM4)
True Random Number Generator (TRNG)

DDR Interface for External DRAM buffer (Optional)
Rich Peripheral Interfaces
ISO-7816 Interface (Smart Card Interface). SPI Interface, JTAG Interface, UART Interface
PWM Driver
Power Management
On-Chip Switching regulator: high conversion efficiency. Maximum output current up to 350mA
On-Chip Voltage Detector: high sensitivity to protect SSD from damage of power-cycling

Process: 65nm Package: QFN88, BGA
Operating temperature. Commercial: 0°C +-70oC; Industrial:-40°C +-85°C