Key facts
- Manuals
- 1
- Languages
- EN
- Last added
- 2012-01-14
Featured LM9831 manuals
National Semiconductor LM9831 42‑Bit Color 1200 dpi USB Image Scanner Manual
The LM9831 is a complete USB image scanner system‑on‑a‑chip that integrates sensor control, illumination, analog front‑end, pixel processing, DRAM interface, stepper‑motor driver and USB interface. It supports 42‑bit color (14‑bit gray) output and can handle sensors up to 16384 × 3 pixels (1200 dpi × 13.6 in). The device is designed for low power USB‑bus‑powered scanners with only external DRAM and motor driver components required.
The document provides a full description of the device’s features, key specifications, absolute maximum and operating ratings, electrical characteristics, pin assignments, mechanical dimensions, ordering information and connection diagrams. It also includes timing diagrams and details on the USB, DRAM, motor‑control and sensor‑control interfaces.
Covers: General Description · Features · Key Specifications · Absolute Maximum Ratings · Electrical Characteristics · DC and Logic Electrical Characteristics
Latest LM9831 manuals
National Semiconductor LM9831 42‑Bit Color 1200 dpi USB Image Scanner Manual
Datasheet 42 pages · 598 KB · ENThe LM9831 manual from National Semiconductor details the 42‑bit color USB image scanner’s features, specifications, pin functions and operation.
Which document do I need?
Datasheet
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in LM9831 manuals
What supply voltage range does the LM9831 require?
The LM9831 operates from a supply voltage of +4.75 V to +5.25 V.
From: National Semiconductor LM9831 42‑Bit Color 1200 dpi USB Image Scanner Manual
Which external DRAM sizes are compatible with the LM9831?
The LM9831 can be used with either a 4 Mbit or a 16 Mbit external DRAM.
From: National Semiconductor LM9831 42‑Bit Color 1200 dpi USB Image Scanner Manual