Q67100-Q2149中文资料西门子数据手册PDF规格书

3.3V 256 K x 16-Bit EDO-DRAM

3.3V 256 K x 16-Bit EDO-DRAM

(Low power version with Self Refresh)

The HYB 314175BJ/BJL is the new generation dynamic RAM organized as 262 144 words by 16-bit. The HYB 314175BJ/BJL utilizes CMOS silicon gate process as well as advanced circuit techniques to provide wide operation margins, both internally and for the system user. Multiplexed address inputs permit the HYB 314175BJ/BJL to be packed in a standard plastic 400mil wide P-SOJ-40-1 package. This package size provides high system bit densities and is compatible with commonly used automatic testing and insertion equipment. System oriented features include Self Refresh (L-Version), single + 3.3 V (± 0.3 V) power supply, direct interfacing with high performance logic device families.

Preliminary Information

• 262 144 words by 16-bit organization

• 0 to 70 °C operating temperature

• Fast access and cycle time

• RAS access time:

50 ns (-50 version)

55 ns (-55 version)

60 ns (-60 version)

• CAS access time:

13ns (-50 & -55 version)

15 ns (-60 version)

• Cycle time:

89 ns (-50 version)

94 ns (-55 version)

104 ns (-60 version)

• Hype page mode (EDO) cycle time

20 ns (-50 & -55 version)

25 ns (-60 version)

• High data rate

50 MHz (-50 & -55 version)

40 MHz (-60 version)

• Single + 3.3 V (±0.3 V) supply with a builtin VBB generator

• Low Power dissipation

max. 450 mW active (-50 version)

max. 432 mW active (-55 version)

max. 378 mW active (-60 version)

• Standby power dissipation

7.2 mW standby (TTL)

3.6 mW max. standby (CMOS)

0.72 mW max. standby (CMOS) for

Low Power Version

• Output unlatched at cycle end allows two-dimensional chip selection

• Read, write, read-modify write, CASbefore-RAS refresh, RAS-only refresh, hidden-refresh and hyper page (EDO) mode capability

• 2 CAS / 1 WE control

• Self Refresh (L-Version)

• All inputs and outputs TTL-compatible

• 512 refresh cycles / 16 ms

• 512 refresh cycles / 128 ms

Low Power Version only

• Plastic Packages:

P-SOJ-40-1 400mil width