FM24C64C 查看數據表（PDF） - Ramtron International Corporation

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FM24C64C

64Kb Serial 5V F-RAM Memory

Ramtron International Corporation 

AC Test Conditions

Input Pulse Levels

Input rise and fall times

Input and output timing levels

0.1 VDD to 0.9 VDD

10 ns

0.5 VDD

Diagram Notes

All start and stop timing parameters apply to both read and write

cycles. Clock specifications are identical for read and write cycles.

Write timing parameters apply to slave address, word address, and

write data bits. Functional relationships are illustrated in the relevant

data sheet sections. These diagrams illustrate the timing parameters

only.

FM24C64C

Equivalent AC Load Circuit

5.5V

Output

1700 

100 pF

Read Bus Timing

tR

t HIGH

tF

t LOW

t SP

t SP

SCL

SDA

t SU:SDA

t BUF

1/fSCL

t HD:DAT

t SU:DAT

Start

Stop Start

t AA

t DH

Acknowledge

Write Bus Timing

SCL

SDA

t SU:STO

t HD:DAT

t HD:STA

t SU:DAT

Start

Stop Start

t AA

Acknowledge

Data Retention

Symbol

Parameter

TDR

@ +85ºC

@ +80ºC

@ +75ºC

Min

Max

Units

Notes

10

-

Years

18

-

Years

36

-

Years

Rev. 1.1

June 2011

10 of 12

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