This is a flash memory product of Silicon Storage Technology, Inc. with the model number S71241-04-000 12/06 1. It supports 8-bit or 16-bit access, PIO Mode-4, Multi-word DMA Mode-2, and can support 8 flash media devices directly connected and up to 64 flash media devices connected through external decoding logic.
The SST55LD019A/B/C series are ATA Flash Disk Controllers that translate ATA/IDE bus signals to NAND flash media. They integrate a microcontroller, DMA, SRAM buffer, power‑management unit and an embedded flash file system, providing fast, low‑power storage solutions for a range of devices.
The controllers support 8‑ or 16‑bit host interfaces, up to PIO Mode‑4 and Multi‑word DMA Mode‑2, and can handle up to eight flash media devices directly (or 64 with external decoding). Security features include a 20‑byte unique ID, configurable write‑protect pins and up to four password‑protected protection zones.
| Host Interface Width | 8‑ or 16‑bit |
|---|---|
| Supported Transfer Modes | PIO Mode‑4, Multi‑word DMA Mode‑2 |
| Flash Media Type | Single‑Level Cell (SLC) |
| Program Page Size | 512 Byte and 2 KB |
| Core Voltage | 3.3 V |
| Host Voltage Options | 3.3 V or 5.0 V |
| Active Mode Current | 25 mA (3.3 V) / 35 mA (5.0 V) typical |
| Sleep Mode Current | 40 µA (3.3 V) / 50 µA (5.0 V) typical |
| Package Options | 100‑lead TQFP (16 mm × 16 mm), 84‑ball TFBGA (9 mm × 9 mm), 85‑ball VFBGA (6 mm × 6 mm) |
| Operating Temperature (Commercial) | 0 °C to 70 °C |
| Operating Temperature (Industrial) | -40 °C to +85 °C |
| Sustained Write Performance | 6 MB/s (A) / 10 MB/s (B/C) |
| Sustained Read Performance | Up to 10 MB/s |
| ECC Capability | Corrects up to 3 random 12‑bit symbols per 512‑byte sector |
The SST55LD019B supports up to 10 MB/sec sustained write performance.