EEPROM 串行 2-Kb SPD,用于 DDR2 DIMM

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概览

CAT34C02 是一款用于 DDR2 DIMM 的 EEPROM 串行 2-Kb SPD,内部组织为 16 页,每页 16 个字节,总共 256x8 位。它具有 16 字节页写入缓存,支持 Standard (100 kHz) 和 Fast (400 kHz) I2C 协议。写入操作可以通过将 WP 引脚置于高电平(保护整个内存)或通过软件命令设置内部写保护标志(保护内存的下半区)来禁止。除了永久性软件写保护之外,CAT34C02 还具有兼容 JEDEC 的可逆向软件写保护,用于基于 1.7 V 至 3.6 V 电源电压范围运行的 DDR2 顺序内存指示位检测 (SPD) 应用。CAT34C02 完全向后兼容之前基于 1.7 V 至 5.5 V 电源电压范围运行的 DDR1 SPD 应用。

  • Disk drives
  • Modems

  • Supports Standard and Fast I2C Protocol
  • 1.7 V to 5.5 V Supply Voltage Range
  • 16-Byte Page Write Buffer
  • Hardware Write Protection for Entire Memory
  • Software Write Protection for Lower 128 Bytes
  • Schmitt Triggers and Noise Suppression Filters on I2C Bus Inputs (SCL and SDA)
  • Low Power CMOS Technology
  • 1,000,000 Program/Erase Cycles
  • 100 Year Data Retention
  • Industrial Temperature Range
  • This Device is Pb-Free, Halogen Free/BFR Free and RoHS Compliant

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CAD Models

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MSL Type

MSL Temp (°C)

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ON Target

Type

Density

Organization

Data Transmission Standard

fcycle Max (kHz)

tACC Max ns

VCC Min (V)

VCC Max (V)

Vio Ref (V)

Istandby Max (µA)

Iact Max (mA)

T Min (°C)

T Max (°C)

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Specific Features

Reference Price

CAT34C02HU4IGT4A

Active

CAD Model

Pb

A

H

P

UDFN-8

1

260

REEL

4000

N

Serial

2 kb

256 x 8

I2C

400

900

1.7

5.5

-

1

1

-40

85

-

-

$0.1471

More Details

CAT34C02VP2IGT4A

Active

CAD Model

Pb

A

H

P

TDFN-8

1

260

REEL

4000

N

Serial

2 kb

256 x 8

I2C

400

900

1.7

5.5

-

1

1

-40

85

-

-

$0.1733

More Details

CAT34C02YI-GT5A

Active

CAD Model

Pb

A

H

P

TSSOP-8

1

260

REEL

5000

N

Serial

2 kb

256 x 8

I2C

400

900

1.7

5.5

-

1

1

-40

85

-

-

$0.192

More Details

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