M29F400BT datasheet(12/40 Pages) STMICROELECTRONICS

Part #	M29F400BT

Description	4 Mbit (512Kb x8 or 256Kb x16, Boot Block) single supply Flash memory

PDF	40 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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12 / 40 page

Signal descriptions

M29F400BT, M29F400BB

12/40

2.11

VCC supply voltage

The VCC Supply Voltage supplies the power for all operations (Read, Program, Erase etc.).

The Command Interface is disabled when the VCC Supply Voltage is less than the Lockout

Voltage, VLKO. This prevents Bus Write operations from accidentally damaging the data

during power up, power down and power surges. If the Program/Erase Controller is

programming or erasing during this time then the operation aborts and the memory contents

being altered will be invalid.

A 0.1µF capacitor should be connected between the VCC Supply Voltage pin and the VSS

Ground pin to decouple the current surges from the power supply. The PCB track widths

must be sufficient to carry the currents required during program and erase operations, ICC4.

2.12

VSS ground

The VSS Ground is the reference for all voltage measurements.

M29F400BT Datasheet(PDF) 12 Page - STMicroelectronics