SST39VF3201C datasheet(5/37 Pages) MICROCHIP

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DS20005020B

07/14

32 Mbit Multi-Purpose Flash Plus

SST39VF3201C / SST39VF3202C

Data Sheet

Table 1: Pin Description

Symbol

Pin Name

Functions

AMS1-A0

1. AMS = Most significant address

AMS =A20 for SST39VF3201C/3202C

Address Inputs

To provide memory addresses.

During Sector-Erase AMS-A11 address lines will select the sector.

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.

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.

RY/BY#

Ready/Busy#

To output the status of a Program or Erase operation

RY/BY# is a open drain output, so a 10K

 - 100K pull-up resistor is required

to allow RY/BY# to transition high indicating the device is ready to read.

T1.0 20005020

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