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Part Number: HM62256B
Description: The Hitachi HM62256B is a CMOS static RAM organized 32-kword×8-bit. It reali...
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HM62256B
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General Description
HM62256B General Description
The Hitachi HM62256B is a CMOS static RAM organized 32-kword×8-bit. It realizes higher performance and low power consumption by employing 0.8 mm Hi-CMOS process technology. The device, packaged in 8 ×14 mm TSOP, 8 ´ 13.4 mm TSOP with thickness of 1.2 mm, 450-mil SOP (foot print pitch width), 600-mil
plastic DIP, or 300-mil plastic DIP, is available for high density mounting. It offers low power standby power dissipation; therefore, it is suitable for battery back-up systems.
HM62256B Maximum Ratings
| Parameter |
Symbol |
Value |
Unit |
| Power supply voltage*1 |
VCC |
0.5 to +7.0 |
V |
| Terminal voltage*1 |
VT |
0.5*2 to VCC + 0.3*3 |
V |
| Power dissipation |
PT |
1.0 |
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. Relative to VSS
2. VT min: 3.0 V for pulse half-width 50 ns
3. Maximum voltage is 7.0 V
HM62256B Features
` High speed
Fast access time: 45/55/70/85 ns (max)
` Low power
Standby: 1.0 W (typ)
Operation: 25 mW (typ) (f = 1 MHz)
` Single 5 V supply
` Completely static memory
No clock or timing strobe required
` Equal access and cycle times
` Common data input and output
Three state output
` Directly TTL compatible
All inputs and outputs
` Capability of battery back up operation
Fast access time: 45/55/70/85 ns (max)
` Low power
Standby: 1.0 W (typ)
Operation: 25 mW (typ) (f = 1 MHz)
` Single 5 V supply
` Completely static memory
No clock or timing strobe required
` Equal access and cycle times
` Common data input and output
Three state output
` Directly TTL compatible
All inputs and outputs
` Capability of battery back up operation
HM62256B Connection Diagram
HM62256B
PDF/DataSheet Download
- Datasheet: HM62256B
- File Size: 158183 KB
- Manufacturer: HITACHI [Hitachi Semiconductor]
- Click here to Download
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