MT18HTF25672AZ-667 Micron Semiconductor Products, MT18HTF25672AZ-667 Datasheet

MT18HTF25672AZ-667

Manufacturer Part Number

MT18HTF25672AZ-667

Description

Manufacturer

Micron Semiconductor Products

Datasheet

1.MT18HTF25672AZ.pdf (14 pages)

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DDR2 SDRAM UDIMM

MT18HTF25672AZ – 2GB

MT18HTF51272AZ – 4GB

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

Features

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

• Fast data transfer rates: PC2-3200, PC2-4200,

• 2GB (256 Meg x 72), 4GB (512 Meg x 72)

• V

• JEDEC-standard 1.8V I/O (SSTL_18-compatible)

• Differential data strobe (DQS, DQS#) option

• 4n-bit prefetch architecture

• Supports ECC error detection and correction

• Dual rank

• Multiple internal device banks for concurrent

• Programmable CAS latency (CL)

• Posted CAS additive latency (AL)

• WRITE latency = READ latency - 1

• Programmable burst lengths (BL): 4 or 8

• Adjustable data-output drive strength

• 64ms, 8192-cycle refresh

• On-die termination (ODT)

• Serial presence-detect (SPD) with EEPROM

• Gold edge contacts

• Halogen-free

Table 1:

PDF: 09005aef83c6d17f/Source: 09005aef83c6d1c0

HTF18C256_512x72AZ.fm - Rev. A 9/09 EN

Speed

Grade

PC2-5300, PC2-6400, or PC2-8500

operation

-1GA

-80E

-800

-667

-53E

-40E

DDSPD

= V

DDQ

= +1.7V to +3.6V

Key Timing Parameters

Nomenclature

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

= +1.8V

Industry

PC2-8500

PC2-6400

PC2-5300

PC2-4200

PC2-3200

CL = 7

1066

–

CL = 6

2GB, 4GB (x72, DR, ECC) 240-Pin DDR2 SDRAM UDIMM

800

–

Data Rate (MT/s)

www.micron.com

CL = 5

667

800

667

–

Figure 1:

Options

• Operating temperature

• Package

• Frequency/CAS latency

Module height: 30mm (1.18in)

– Commercial (0°C ≤ T

– 240-pin DIMM (halogen-free)

– 1.875ns @CL = 7 (DDR2-1066)

– 2.5ns @ CL = 5 (DDR2-800)

– 2.5ns @ CL = 6 (DDR2-800)

– 3.0ns @ CL = 5 (DDR2-667)

CL = 4

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

533

400

1. Contact Micron for industrial temperature

module offerings.

240-Pin UDIMM (MO-237 R/C G)

CL = 3

400

13.125

≤ +85°C)

(ns)

12.5

RCD

13.125

(ns)

12.5

Marking

Features

None

-1GA

-80E

-800

-667

58.125

(ns)

57.5

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