MBM29F040C datasheet(8/41 Pages) SPANSION

8 / 41 page

MBM29F040C-55/-70/-90

s LOGIC SYMBOL

Legend: L = VIL, H = VIH, X = VIL or VIH,

= Pulse Input. See DC Characteristics for voltage levels.

Notes: 1. Manufacturer and device codes may also be accessed via a command register write sequence. See

Table 5.

2. Refer to the section on Sector Protection.

3. WE can be VIL if OE is VIL, OE at VIH initiates the write operations.

Table 1

MBM29F040C Pin Configuration

Function

A0 to A18

Address Inputs

DQ0 to DQ7

Data Inputs/Outputs

Chip Enable

Output Enable

Write Enable

VSS

Device Ground

VCC

Device Power Supply

Table 2

MBM29F040C User Bus Operations

Operation

I/O

Auto-Select Manufacturer Code (1)

VID

Code

Auto-Select Device Code (1)

VID

Code

Read (3)

DOUT

Standby

XXXXXX

HIGH-Z

Output Disable

XXXX

HIGH-Z

Write (Program/Erase)

DIN

Enable Sector Protection (2)

VID

XXX

VID

Verify Sector Protection (2)

VID

Code

A0 to A18

DQ0 to DQ7

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