W39V040FB

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9.5

Software Product Identification and Boot Block Lockout Detection Acquisition Flow . 16

10.

ELECTRICAL CHARACTERISTICS ......................................................................................... 17

10.1

Absolute Maximum Ratings ......................................................................................... 17

10.2

Programmer interface Mode DC Operating Characteristics........................................ 17

10.3

FWH Interface Mode DC Operating Characteristics ................................................... 18

10.4

Power-up Timing.......................................................................................................... 18

10.5

Capacitance................................................................................................................. 18

10.6

Programmer Interface Mode AC Characteristics......................................................... 19

10.7

Read Cycle Timing Parameters................................................................................... 20

10.8

Write Cycle Timing Parameters................................................................................... 20

10.9

Data Polling and Toggle Bit Timing Parameters ......................................................... 20

11.

TIMING WAVEFORMS FOR PROGRAMMER INTERFACE MODE ....................................... 21

11.1

Read Cycle Timing Diagram........................................................................................ 21

11.2

Write Cycle Timing Diagram ........................................................................................ 21

11.3

Program Cycle Timing Diagram .................................................................................. 22

11.4

#DATA Polling Timing Diagram................................................................................... 22

11.5

Toggle Bit Timing Diagram .......................................................................................... 23

11.6

Sector Erase Timing Diagram ..................................................................................... 23

12.

FWH INTERFACE MODE AC CHARACTERISTICS................................................................ 24

12.1

AC Test Conditions...................................................................................................... 24

12.2

Read/Write Cycle Timing Parameters ......................................................................... 24

12.3

Reset Timing Parameters ............................................................................................ 24

13.

TIMING WAVEFORMS FOR FWH INTERFACE MODE.......................................................... 25

13.1

Read Cycle Timing Diagram........................................................................................ 25

13.2

Write Cycle Timing Diagram ........................................................................................ 25

13.3

Program Cycle Timing Diagram .................................................................................. 26

13.4

#DATA Polling Timing Diagram................................................................................... 27

13.5

Toggle Bit Timing Diagram .......................................................................................... 28

13.6

FGPI Register/Product ID Readout Timing Diagram................................................... 30

13.7

Reset Timing Diagram ................................................................................................. 30

14.

ORDERING INFORMATION..................................................................................................... 31

15.

HOW TO READ THE TOP MARKING...................................................................................... 31

16.

PACKAGE DIMENSIONS ......................................................................................................... 32

16.1

32L PLCC .................................................................................................................... 32

16.2

32L STSOP.................................................................................................................. 32

17.

VERSION HISTORY .................................................................................................................33