E
28F020
CONTENTS
PAGE
PAGE
1.0 APPLICATIONS..............................................5
4.0 ELECTRICAL SPECIFICATIONS..................18
4.1 Absolute Maximum Ratings........................18
4.2 Operating Conditions..................................18
4.3 Capacitance ...............................................18
2.0 PRINCIPLES OF OPERATION .......................8
2.1 Integrated Stop Timer ..................................8
2.2 Write Protection ...........................................9
2.2.1 Bus Operations......................................9
2.2.1.1 Read...............................................9
2.2.1.2 Output Disable..............................10
2.2.1.3 Standby ........................................10
2.2.1.4 Intelligent Identifier Operation .......10
2.2.1.5 Write.............................................10
2.2.2 Command Definitions ..........................10
2.2.2.1 Read Command............................11
2.2.2.2 Intelligent Identifier Command ......11
2.2.2.3 Set-Up Erase/Erase Commands...12
2.2.2.4 Erase Verify Command.................12
4.4 DC Characteristics—TTL/NMOS
Compatible—Commercial Products...........19
4.5 DC Characteristics—CMOS Compatible—
Commercial Products ................................20
4.6 DC Characteristics—TTL/NMOS
Compatible—Extended Temperature
Products....................................................22
4.7 DC Characteristics—CMOS Compatible—
Extended Temperature Products...............24
4.8 AC Characteristics—Read Only
Operations—Commercial and Extended
Temperature Products...............................28
4.9 AC Characteristics—Write/Erase/Program
Only Operations—Commercial and
2.2.2.5 Set-Up Program/Program
Extended Temperature Products...............30
Commands ..................................12
4.10 Erase and Programming Performance.....31
2.2.2.6 Program Verify Command ............12
2.2.2.7 Reset Command...........................13
2.2.3 Extended Erase/Program Cycling........13
2.2.4 Quick-Pulse Programming Algorithm...13
2.2.5 Quick-Erase Algorithm.........................13
4.11 AC Characteristics—Alternate CE#
Controlled Writes—Commercial and
Extended Temperature Products...............35
5.0 ORDERING INFORMATION.........................38
6.0 ADDITIONAL INFORMATION......................38
3.0 DESIGN CONSIDERATIONS........................16
3.1 Two-Line Output Control ............................16
3.2 Power Supply Decoupling ..........................16
3.3 VPP Trace on Printed Circuit Boards...........16
3.4 Power-Up/Down Protection........................16
3.5 28F020 Power Dissipation .........................16
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INTEL [ INTEL ]
