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Part Number: HM63921
Description: The HM63921 is a first-in, first-out memory that utilizes a high performance static RAM array with internal algorithm t...
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HM63921
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DataSheet
General Description
HM63921 General Description
The HM63921 is a first-in, first-out memory that utilizes a high performance static RAM array with internal algorithm that controls, monitors and declares status of the memory by empty flag, full flag and half-full flag, to prevent data overflow or underflow.
Expansion logic warrants unlimited expansion capability in width and depth. Both read and write are independent from each other and their corresponding pointers are designed to select the proper locations out of the entire array serially without address information to load or unload data. Data is toggled in and out of the device through the use of the write enable (W) and read enable (R) pins. The device has a read/write cycle time of 30/35/45 ns. Organization of HM63921 provides a 9-bit data bus. The ninth bit could be used for control or parity for error checking at the option of the user. The HM63921 is fabricated using the Hitachi CMOS 1.3 micron technology. The device is available in DIP and SOJ.
HM63921 Features
• First-in, first-out dual port memory
• 2 k ´ 9 organization
• Low-power CMOS 1.3 micron technology
• Asynchronous and simultaneous read and write
• Fully expandable in depth and/or width
• Single 5 V power supply
• Empty and full warning flags
• Half-full flag
• Access time: 22/25/35 ns
• Package: 300-mil 28-pin plastic DIP package 300-mil 28-pin plastic SOJ package
• 2 k ´ 9 organization
• Low-power CMOS 1.3 micron technology
• Asynchronous and simultaneous read and write
• Fully expandable in depth and/or width
• Single 5 V power supply
• Empty and full warning flags
• Half-full flag
• Access time: 22/25/35 ns
• Package: 300-mil 28-pin plastic DIP package 300-mil 28-pin plastic SOJ package
HM63921 Connection Diagram
HM63921
PDF/DataSheet Download
- Datasheet: HM63921
- File Size: 97700 KB
- Manufacturer: ETC [ETC]
- Click here to Download
- ·HM6116
- HITACHI [Hitachi Semiconductor]
- 2048-word X 8bit High Speed CMOS Static RAM
- 256425 KB
- ·HM6116FP-2
- HITACHI [Hitachi Semiconductor]
- 2048-word X 8bit High Speed CMOS Static RAM
- 256425 KB
- ·HM6116FP-3
- HITACHI [Hitachi Semiconductor]
- 2048-word X 8bit High Speed CMOS Static RAM
- 256425 KB
- ·HM6116FP-4
- HITACHI [Hitachi Semiconductor]
- 2048-word X 8bit High Speed CMOS Static RAM
- 256425 KB
- ·HM6116LFP-2
- HITACHI [Hitachi Semiconductor]
- 2048-word X 8bit High Speed CMOS Static RAM
- 256425 KB
- ·HM6116LFP-3
- HITACHI [Hitachi Semiconductor]
- 2048-word X 8bit High Speed CMOS Static RAM
- 256425 KB
- ·HM6116LFP-4
- HITACHI [Hitachi Semiconductor]
- 2048-word X 8bit High Speed CMOS Static RAM
- 256425 KB
- ·HM6116LP-2
- HITACHI [Hitachi Semiconductor]
- 2048-word X 8bit High Speed CMOS Static RAM
- 256425 KB
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