DS4550
PRODUCTIONI2C and JTAG Nonvolatile 9-Bit I/O Expander Plus Memory
- Part Models
- 1
- 1ku List Price
- Starting From $2.95
Part Details
- Programmable Replacement for Mechanical Jumpers and Switches
- Nine NV Inputs/Outputs
- 64-Byte NV User Memory (EEPROM)
- I2C-Compatible Serial Interface and JTAG
- Up to 8 Devices can be Multidropped on the Same I²C Bus
- Open-Drain Outputs with Configurable Pullups
- Outputs Capable of Sinking 16mA
- Low Power Consumption
- Wide Operating Voltage Range: 2.7V to 5.5V
- Operating Temperature Range: -40°C to +85°C
The DS4550 is a 9-bit, nonvolatile (NV) I/O expander with 64 bytes of NV user memory controlled by either an I2C-compatible serial interface or JTAG port. The DS4550 offers a digitally programmable alternative to hardware jumpers and mechanical switches that are being used to control digital logic nodes. Each I/O pin is independently configurable. The outputs are open drain with selectable pullups. Each output has the ability to sink up to 16mA, and since the device is NV, it powers up in the desired state allowing it to control digital logic inputs immediately on powerup without having to wait for the host CPU to initiate control.
Applications
- Network Storage
- PC Peripherals
- RAM-Based FPGA Bank Switching for Multiple Profiles
- Routers/Switches
- Selecting Between Boot Flash
- Servers
- Setting ASIC Configurations/Profiles
- Telecom Equipment
Documentation
Data Sheet 1
Reliability Data 1
Design Note 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| DS4550E+ | Thin Shrink Small-Outline Package |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Dec 11, 2018 - 1754N ASSEMBLY |
||
| DS4550E+ | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
Tools & Simulations
IBIS Model 1
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