W39V080A Data Sheet

1M

× 8 CMOS FLASH MEMORY

WITH LPC INTERFACE

Publication Release Date: Dec. 28, 2005

- 1 -

Revision A4

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

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

6.5

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

6.6

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

6.7

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

6.8

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

6.9

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

7.

TABLE OF OPERATING MODES ............................................................................................ 10

7.1

Operating Mode Selection - Programmer Mode........................................................... 10

7.2

Operating Mode Selection - LPC Mode........................................................................ 10

7.3

Standard LPC Memory Cycle Definition ....................................................................... 10

8.

TABLE OF COMMAND DEFINITION ....................................................................................... 11

8.1

Embedded Programming Algorithm ............................................................................. 12

8.2

Embedded Erase Algorithm.......................................................................................... 13

8.3

Embedded #Data Polling Algorithm.............................................................................. 14

8.4

Embedded Toggle Bit Algorithm ................................................................................... 15

8.5

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

9.

DC CHARACTERISTICS .......................................................................................................... 17

9.1

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

9.2

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

9.3

LPC interface Mode DC Operating Characteristics...................................................... 18

9.4

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

10.

CAPACITANCE......................................................................................................................... 18

11.

PROGRAMMER INTERFACE MODE AC CHARACTERISTICS............................................. 19