Siemens BJ-50 Manuals

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User Manual 2

Key facts

Brand
Siemens
Model
BJ-50
Industry
Industrial
Documents
2
Languages
EN
Last added
2012-06-07

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SIEMENS HYB 514256B/BJ-50/-60/-70 256 K × 4-Bit Dynamic RAM HYB 514256BL/BJL-50/-60/-70 Low Power 256 K × 4-Bit Dynamic RAM(1)

SIEMENS HYB 514256B/BJ-50/-60/-70 256 K × 4-Bit Dynamic RAM HYB 514256BL/BJL-50/-60/-70 Low Power 256 K × 4-Bit Dynamic RAM(1)

Datasheet 22 pages · 217 KB · EN

The Siemens HYB 514256B/BJ/BL/BJL is a new generation dynamic RAM organized as 262,144 words by 4-bit. It utilizes CMOS silicon gate process technology to provide wide operating margins and high system bit densities. The device supports single +5 V power supply operation and features fast access times ranging from 50 ns to 70 ns depending on the version.

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Siemens BJ-50 specifications

Organization262 144 words by 4-bit
Supply Voltage+5 V (+ 10%)
Access Time (-50 version)50 ns
Cycle Time (-50 version)95 ns

Source: SIEMENS HYB 514256B/BJ-50/-60/-70 256 K × 4-Bit Dynamic RAM HYB 514256BL/BJL-50/-60/-70 Low Power 256 K × 4-Bit Dynamic RAM(1)

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Datasheet 2

Ratings, dimensions and ordering codes, for selection and design work.

Questions answered in these manuals

Is this memory suitable for battery backup applications?

Yes, the HYB 514256BL/BJL versions are specially selected for battery backup applications.

From: SIEMENS HYB 514256B/BJ-50/-60/-70 256 K × 4-Bit Dynamic RAM HYB 514256BL/BJL-50/-60/-70 Low Power 256 K × 4-Bit Dynamic RAM(1)

How much power does the -50 version consume during standby?

The maximum standby power dissipation is 5.5 mW for standard versions and 1.1 mW for L-versions.

From: SIEMENS HYB 514256B/BJ-50/-60/-70 256 K × 4-Bit Dynamic RAM HYB 514256BL/BJL-50/-60/-70 Low Power 256 K × 4-Bit Dynamic RAM(1)

What is the refresh cycle time for this DRAM?

The device supports a refresh period of 8 ms or 64 ms depending on the configuration.

From: SIEMENS HYB 514256B/BJ-50/-60/-70 256 K × 4-Bit Dynamic RAM HYB 514256BL/BJL-50/-60/-70 Low Power 256 K × 4-Bit Dynamic RAM

Is this memory suitable for battery backup applications?

Yes, the HYB 514256BL/BJL variants are specially selected for battery backup applications.

From: SIEMENS HYB 514256B/BJ-50/-60/-70 256 K × 4-Bit Dynamic RAM HYB 514256BL/BJL-50/-60/-70 Low Power 256 K × 4-Bit Dynamic RAM