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X84138S, X84149S, X84161

Table of contents:
Info of X84138S
Info of X84149S
Info of X84161

X84138S, X84149S, X84161 Selling Leads, Datasheet

MFG:XILINX Package Cooled:06+ D/C:07+

X84138S, X84149S, X84161 Datasheet download

Five Points

Part Number: X84138S

MFG: XILINX

Package Cooled: 06+

D/C: 07+

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X84161 General Description

The Port Saver memories need no serial ports or special hardware and connect to the processor memory bus. Replacing bytewide data memory, themPort Saver uses bytewide memory control functions, takes a fraction of the board space and consumes much less power.Replacing serial memories, themPort Saver provides all the serial benefits, such as low cost, low power, low voltage,and small package size while releasing I/Os for more important uses.

The Port Saver memory outputs data within 25ns of an active read signal. This is less than the read access time of most hosts and provides "no-wait-state" operation.This prevents bottlenecks on the bus. With rates to 10 MHz, themPort Saver supplies data faster than required by most host read cycle specifications. This eliminates the need for software NOPs.

The Port Saver memories communicate over one line of the data bus using a sequence of standard bus read and write operations. This "bit serial" interface allows themPort Saver to work well in 8-bit, 16 bit, 32-bit, and 64-bit systems.

A Write Protect (WP) pin prevents inadvertent writes to the memory.

Xicor EEPROMs are designed and tested for applications requiring extended endurance. Inherent data retention is greater than 100 years.

X84161 Maximum Ratings

Temperature under Bias ......................65°C to +135°C
Storage Temperature ...........................65°C to +150°C
Terminal Voltage with
Respect to VSS .......................................1V to +7V
DC Output Current....................................................... 5mA
Lead Temperature (Soldering, 10 seconds)..............300°C

X84161 Features

• Up to 10MHz data transfer rate
• 25ns Read Access Time
• Direct Interface to Microprocessors and Microcontrollers
   -Eliminates I/O port requirements
   -No interface glue logic required
   -Eliminates need for parallel to serial converters
• Low Power CMOS
   -1.8V3.6V, 2.5V5.5V and 5V±10% Versions
   -Standby Current Less than 1A
   -Active Current Less than 1mA
• Byte or Page Write Capable
   -32-Byte Page Write Mode
• Typical Nonvolatile Write Cycle Time: 2ms
• High Reliability
   -100,000 Endurance Cycles
   -Guaranteed Data Retention: 100 Years

X84161 Connection Diagram

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