V54C3256804VS datasheet(8/52 Pages) MOSEL

Part #	V54C3256804VS

Description	256Mbit SDRAM 3.3 VOLT, TSOP II / SOC BGA / WBGA PACKAGE 16M X 16, 32M X 8, 64M X 4

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Manufacturer	MOSEL [Mosel Vitelic, Corp]

Direct Link	http://www.moselvitelic.com

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MOSEL VITELIC

V54C3256(16/80/40)4V(T/S/B)

8

V54C3256(16/80/40)4V(T/S/B) Rev1.6 September

Capacitance*

TA = 0 to 70°C, VCC = 3.3 V ± 0.3 V, f = 1 Mhz

*

Note:Capacitance is sampled and not 100% tested.

Absolute Maximum Ratings*

Operating temperature range .................. 0 to 70 °C

Storage temperature range ................-55 to 150 °C

Input/output voltage.................. -0.3 to (VCC+0.3) V

Power supply voltage .......................... -0.3 to 4.6 V

Power dissipation ..............................................1 W

Data out current (short circuit).......................50 mA

*Note:

Stresses above those listed under “Absolute Maximum

Ratings” may cause permanent damage of the device.

Exposure to absolute maximum rating conditions for

extended periods may affect device reliability.

Symbol

Parameter

Max. Unit

CI1

Input Capacitance (A0 to A12)

5

pF

CI2

Input Capacitance

RAS, CAS, WE, CS, CLK, CKE, DQM

5pF

CIO

Output Capacitance (I/O)

6.5

pF

CCLK

Input Capacitance (CLK)

4

pF

Block Diagram

Row decoder

Memory array

Bank 0

8192 x 512

x 16 bit

Row decoder

Memory array

Bank 1

8192 x 512

x16 bit

Row decoder

Memory array

Bank 2

8192 x 512

x 16 bit

Row decoder

Memory array

Bank 3

8192 x 512

x 16 bit

Input buffer

Output buffer

I/O1-I/O16

Column address

counter

Column address

buffer

Row address

buffer

Refresh Counter

A0 - A12, BA0, BA1

A0 - A8, AP, BA0, BA1

Control logic & timing generator

Row Addresses

Column Addresses

x16 Configuration

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