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Part Number: HM621664HBI
Description: The HM621664HBI is an asynchronous high speed static RAM organized as 64-kword×
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HM621664HBI
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General Description
HM621664HBI General Description
The HM621664HBI is an asynchronous high speed static RAM organized as 64-kword×16-bit. It realize high speed access time (20 ns) with employing 0.8 mm CMOS process and high speed circuit designing technology. It is most appropriate for the application which requires high speed, high density memory and wide bit width configuration, such as cache and buffer memory in system. The HM621664HBI is packaged in 400-mil 44-pin SOJ for high density surface ounting.
HM621664HBI Maximum Ratings
| Parameter |
Symbol |
Value |
Unit |
| Supply voltage relative to VSS |
VCC |
0.5 to +7.0 |
V |
| Voltage on any pin relative to VSS |
VT |
0.5*1 to VCC + 0.5 |
V |
| Power dissipation |
PT |
1.0*2/1.5*3 |
W |
| Operating temperature |
Topr |
40 to +85 |
°C |
| Storage temperature |
Tstg |
55 to +125 |
°C |
| Storage temperature under bias |
Tbias |
40 to +85 |
°C |
1. VT (min) = 2.5 V for pulse width (under shoot) 10 ns
2. At still air condition
3. At air flow 1.0 m/s
HM621664HBI Features
` Single 5 V supply: 5 V ± 10%
` Access time: 20 ns (max)
` Completely static memory
- No clock or timing strobe required
` Equal access and cycle times
` Directly TTL compatible
- All inputs and outputs
` 400-mil 44-pin SOJ package
` Center VCC and VSS type pinout
` Operating temperature range: 40 to +85°C
` Access time: 20 ns (max)
` Completely static memory
- No clock or timing strobe required
` Equal access and cycle times
` Directly TTL compatible
- All inputs and outputs
` 400-mil 44-pin SOJ package
` Center VCC and VSS type pinout
` Operating temperature range: 40 to +85°C
HM621664HBI Connection Diagram
HM621664HBI Series
PDF/DataSheet Download
- Datasheet: HM621664HBI Series
- File Size: 132461 KB
- Manufacturer: hitachi
- Click here to Download
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