fido5100/fido5200

Data Sheet

Rev. E | Page 2 of 19

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

Functional Block Diagram .............................................................. 1

General Description......................................................................... 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

REM Switch Characteristics........................................................ 3

Timing Specifications—Nonmultiplexed Address Data Bus.. 3

Timing Specifications—Multiplexed Address Data Bus ......... 5

Absolute Maximum Ratings............................................................ 7

ESD Caution.................................................................................. 7

Pin Configuration and Function Descriptions............................. 8

Theory of Operation ...................................................................... 12

Device Interfaces ........................................................................ 12

Internal Precision Timer ........................................................... 12

Host Interface.............................................................................. 12

Ethernet Interface....................................................................... 15

Applications Information .............................................................. 17

REM Switch Hardware .............................................................. 17

Board Layout............................................................................... 17

Design Considerations .............................................................. 17

Outline Dimensions....................................................................... 19

Ordering Guide .......................................................................... 19

REVISION HISTORY

3/2020—Rev. D to Rev. E

Deleted Table 13; Renumbered Sequentially .............................. 18

1/2020—Rev. C to Rev. D

Change to Features Section ............................................................. 1

8/2019—Rev. B to Rev. C

Change to Features Section, General Description Section, and

Figure 1 .............................................................................................. 1

Changes to Figure 6.......................................................................... 8

Change to Crystal Section and Figure 8 ...................................... 12

Change to Figure 9 and Figure 10 ................................................ 16

Changes to Figure 11, REM Switch Hardware Section, and

Power Section.................................................................................. 17

Changes to Table 13........................................................................ 18

1/2019—Rev. A to Rev. B

Changes to Ordering Guide.......................................................... 19

8/2018—Rev. 0 to Rev. A

Added Core Current Parameter and I/O Current Parameter,

Table 1 .................................................................................................3

Added Note 2 and Note 3, Table 2; Renumbered Sequentially ...3

Change to Power Dissipation Parameter, Table 4 .........................7

10/2017—Revision 0: Initial Version