FM25V02 查看數據表（PDF） - Ramtron International Corporation

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FM25V02

256Kb Serial 3V F-RAM Memory

Ramtron International Corporation 

8-pin TDFN (4.0mm x 4.5mm body, 0.95mm pitch)

4.50 ±0.1

FM25V02 - 256Kb SPI FRAM

Exposed metal pad

should be left floating.

3.60 ±0.10

Pin 1 ID

Pin 1

0.75 ±0.05

0.95

0.0 - 0.05

2.85 REF

0.30 ±0.1

0.40 ±0.05

0.20 REF.

Recommended PCB Footprint

0.60

4.30

Silkscreen

Pin 1

0.95

0.50

Note: All dimensions in millimeters. The exposed pad should be left floating.

TDFN Package Marking Scheme for Body Size 4.0mm x 4.5mm

XXXXXXP

LLLL

YYWW

Legend:

XXXXXX=base part number, P= package (G=”green” TDFN)

LLLL= lot code

YY=year, WW=work week

Example: FM25V02, “Green”/RoHS TDFN package,

Lot 0003, Year 2009, Work Week 39

Without S/N feature

RG5V02

0003

0939

With S/N feature

RG5VN02

0003

0939

Rev. 2.0

May 2010

Page 16 of 17

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