| Part Number | SN74ACT2229DW | SN74ACT2228DW | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | Logic - FIFOs Memory | Logic - FIFOs Memory | 
|   |   | |
| Product Status | Active | Active | 
| Memory Size | 512 (256 x 1 x 2) | 512 (256 x 1 x 2) | 
| Function | Synchronous | Synchronous | 
| Data Rate | 60MHz | 22MHz | 
| Access Time | 9ns | 20ns | 
| Voltage - Supply | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V | 
| Current - Supply (Max) | 400µA | 400µA | 
| Bus Directional | Uni-Directional | Uni-Directional | 
| Expansion Type | - | - | 
| Programmable Flags Support | No | No | 
| Retransmit Capability | No | No | 
| FWFT Support | No | No | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 28-SOIC (0.295", 7.50mm Width) | 24-SOIC (0.295", 7.50mm Width) | 
| Supplier Device Package | 28-SOIC | 24-SOIC |