SST38VF6401B datasheet(4/58 Pages) MICROCHIP

4 / 58 page

SST38VF6401B / SST38VF6402B / SST38VF6403B / SST38VF6404B

DS25002B-page 4

Preliminary

 2013 Microchip Technology Inc.

TABLE 2-1:

PIN DESCRIPTION

Symbol

Pin Name

Functions

AMS

1-A

Address Inputs

To provide memory addresses.

During Block-Erase AMS-A15 address lines will select the block.

DQ15-DQ0

Data Input/output

To output data during Read cycles and receive input data during Write cycles.

Data is internally latched during a Write cycle.

The outputs are in tri-state when OE# or CE# is high.

WP#

Write Protect

To protect the top/bottom boot block from Erase/Program operation when

grounded.

RY/BY#

Ready/Busy

To indicate when the device is actively programming or erasing.

RST#

Reset

To reset and return the device to Read mode.

CE#

Chip Enable

To activate the device when CE# is low.

OE#

Output Enable

To gate the data output buffers.

WE#

Write Enable

To control the Write operations.

VDD

Power Supply

To provide power supply voltage: 2.7-3.6V

VSS

Ground

No Connection

Unconnected pins.

1. AMS = Most significant address

AMS = A21 for SST38VF6401B/6402B/6403B/6404B

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