W39V080FA Data Sheet

1M

× 8 CMOS FLASH MEMORY

WITH FWH INTERFACE

Publication Release Date: Dec. 13, 2005

- 1 -

Revision A5

Table of Contents-

1.

GENERAL DESCRIPTION ......................................................................................................... 3

2.

FEATURES ................................................................................................................................. 3

3.

PIN CONFIGURATIONS............................................................................................................. 4

4.

BLOCK DIAGRAM ...................................................................................................................... 4

5.

PIN DESCRIPTION..................................................................................................................... 4

6.

FUNCTIONAL DESCRIPTION.................................................................................................... 5

6.1

Interface Mode Selection and Description...................................................................... 5

6.2

Read (Write) Mode ......................................................................................................... 5

6.3

Reset Operation.............................................................................................................. 5

6.4

Accelerated Program Operation ..................................................................................... 5

6.5

Boot Block Operation and Hardware Protection at Initial- #TBL & #WP ........................ 5

6.6

Sector Erase Command ................................................................................................. 6

6.7

Program Operation ......................................................................................................... 6

6.8

Dual BIOS .......................................................................................................................6

6.9

Hardware Data Protection .............................................................................................. 6

6.10

Write Operation Status ................................................................................................... 7

6.10.1

DQ7: #Data Polling.........................................................................................................7

6.10.2

RY/#BY: Ready/#Busy ...................................................................................................7

6.10.3

DQ6: Toggle Bit ..............................................................................................................7

6.10.4

DQ5: Exceeded Timing Limits ........................................................................................8

6.11

Identification Input pin ID[3:0] ......................................................................................... 8

6.12

Register........................................................................................................................... 8

6.12.1

General Purpose Inputs Register ...................................................................................8

6.12.2

Block Locking Registers .................................................................................................8

6.12.3

Product Identification Registers ....................................................................................10

6.13

Table of Operating Modes ............................................................................................ 11

6.13.1

Operating Mode Selection - Programmer Mode ...........................................................11

6.13.2

Operating Mode Selection - FWH Mode.......................................................................11

6.14

Fwh Cycle Definition ..................................................................................................... 12

6.15

Embedded Programming Algorithm.............................................................................. 13

6.16

Embedded Erase Algorithm.......................................................................................... 14

6.17

Embedded #Data Polling Algorithm.............................................................................. 15

6.18

Embedded Toggle Bit Algorithm ................................................................................... 16

6.19

Software Product Identification and Boot Block Lockout Detection Acquisition Flow .. 17

7.

DC CHARACTERISTICS .......................................................................................................... 18

7.1

Absolute Maximum Ratings .......................................................................................... 18

7.2

Programmer interface Mode DC Operating Characteristics ......................................... 18

7.3

FWH interface Mode DC Operating Characteristics..................................................... 19

7.4

Power-up Timing........................................................................................................... 19

7.5

Capacitance .................................................................................................................. 19