| Part Number | SN74ABT7820-25PH | SN74ABT7820-20PH | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | Logic - FIFOs Memory | Logic - FIFOs Memory | 
| 
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| Product Status | Obsolete | Obsolete | 
| Memory Size | 18K (512 x 18 x 2) | 18K (512 x 18 x 2) | 
| Function | Asynchronous | Asynchronous | 
| Data Rate | 40MHz | 50MHz | 
| Access Time | 15ns | 13.5ns | 
| Voltage - Supply | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V | 
| Current - Supply (Max) | 95mA | 95mA | 
| Bus Directional | Bi-Directional | Bi-Directional | 
| Expansion Type | - | - | 
| Programmable Flags Support | Yes | Yes | 
| Retransmit Capability | No | No | 
| FWFT Support | No | No | 
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 80-BQFP | 80-BQFP | 
| Supplier Device Package | 80-QFP (14x20) | 80-QFP (14x20) |