MT8VDDT6464AY-40B Micron Semiconductor Products, MT8VDDT6464AY-40B Datasheet

MT8VDDT6464AY-40B

Manufacturer Part Number

MT8VDDT6464AY-40B

Description

Manufacturer

Micron Semiconductor Products

Datasheet

1.MT8VDDT3264AG-265.pdf (15 pages)

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Features

• 184-pin, unbuffered dual in-line memory module

• Fast data transfer rates: PC2100, PC2700, or PC3200

• 128MB (16 Meg x 64), 256MB (32 Meg x 64), and

• V

• 2.5V I/O (SSTL_2-compatible)

• Internal pipelined double data rate (DDR)

• Bidirectional data strobe (DQS) transmitted/

• Differential clock inputs (CK and CK#)

• Multiple internal device banks for concurrent

• Single rank

• Selectable burst lengths (BL): 2, 4, or 8

• Auto precharge option

• Auto refresh and self refresh modes: 128MB,

• Serial presence-detect (SPD) with EEPROM

• Selectable CAS latency (CL) for maximum

• Gold edge contacts

184-Pin UDIMM (MO-206) Figures

Figure 1:

PCB height: 31.75mm (1.25in)

DDR SDRAM UDIMM

MT8VDDT1664A – 128MB

MT8VDDT3264A – 256MB

MT8VDDT6464A – 512MB

For component data sheets, refer to Micron’s Web site:

PDF: 09005aef80867ab3/Source: 09005aef80867a99

DD8C16_32_64x64A.fm - Rev. I 11/07 EN

(UDIMM)

512MB (64 Meg x 64)

2n-prefetch architecture

received with data—that is, source-synchronous

data capture

operation

15.625µs; 256MB and 512MB, 7.8125µs maximum

average periodic refresh interval

compatibility

DDSPD

= V

= +2.3V to +3.6V

Q = +2.5V (-40B: V

Standard Layout

Products and specifications discussed herein are subject to change by Micron without notice.

= V

128MB, 256MB, 512MB (x64, SR) 184-Pin DDR SDRAM UDIMM

www.micron.com

Figure 2:

Figure 3:

Notes: 1. Not recommended for new designs.

PCB height: 31.75mm (1.25in)

PCB height: 28.58mm (1.125in)

Options

• Operating temperature

• Package

• Memory clock, speed, CAS latency

– Commercial (0°C ≤ T

– Industrial (–40°C ≤ T

– 184-pin DIMM (standard)

– 184-pin DIMM (Pb-free)

– 5.0ns (200 MHz), 400 MT/s, CL = 3

– 6.0ns (167 MHz), 333 MT/s, CL = 2.5

– 7.5ns (133 MHz), 266 MT/s, CL = 2

– 7.5ns (133 MHz), 266 MT/s, CL = 2.5

Micron Technology, Inc., reserves the right to change products or specifications without notice.

2. Contact Micron for industrial temperature

module offerings.

Alternative Layout

Reduced-Height Layout

≤ +85°C)

≤ +70°C)

Marking

Features

None

-40B

-26A

-335

-262

-265

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