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Part Number: HM621864HB
Description: The HM621864HB is an asynchronous high speed static RAM organized as 64-kword ×
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HM621864HB
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DataSheet
General Description
HM621864HB General Description
The HM621864HB is an asynchronous high speed static RAM organized as 64-kword ×18-bit. It realize high speed access time (15/20 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 HM621864HB is packaged in 400-mil 44-pin SOJ for high density surface unting.
HM621864HB 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 |
0 to +70 |
°C |
| Storage temperature |
Tstg |
55 to +125 |
°C |
| Storage temperature under bias |
Tbias |
10 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
HM621864HB Features
` Single 5 V supply
` Access time: 15/20 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
` Access time: 15/20 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
HM621864HB Connection Diagram
HM621864HB Series
PDF/DataSheet Download
- Datasheet: HM621864HB Series
- File Size: 98913 KB
- Manufacturer: hitachi
- Click here to Download
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