M65KA512AB datasheet(29/55 Pages) STMICROELECTRONICS

부품명	M65KA512AB

상세설명	512Mbit (4 Banks x 8M x 16), 133 MHz Clock Rate, Bare Die, 1.8 V Supply, Low Power SDRAM

PDF	55 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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M65KA512AB

DC and ac parameters

29/55

Table 13.

AC characteristics 2

Symbol

Alt.

Parameter

M65KA512ABM65KA51

2AB

Unit

Min.

Max.

tDPL

Delay Time, Write Command to Data Input

(1)

tDAL

Data Input Valid to Precharge

Command

CAS Latency = 2

2*tCK + 22.5

-ns

CAS Latency = 3

tMRD

tRSC

Mode Register Set Cycle Time

(1)

tRC

(2)

RAS Cycle Time (normal operation)

tRC

RAS Cycle Time (refresh operation)

112.5

tRC2

RAS Cycle Time (Self Refresh Exit to Refresh or

Bank/Row Activate Command)

120

tRCD

Delay Time, RAS Active to CAS Active

27.5

tRAS

RAS Active Time

120000

tRP

RAS Precharge Time

22.5

tRRD

Delay Time, RAS Active to RAS Bank Active

(1)

tREF

Refresh Time

Input Transition Time between VIL and VIH

0.5

The unit is the system Clock cycle time.

A new command can be issued tRC after the Self Refresh mode is exited.

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