| Part Number | 74ABT16821ADL,518 | 74ABT16821ADL,512 | 
|---|---|---|
| Manufacturer | NXP USA Inc. | NXP USA Inc. | 
| Category | Logic - Flip Flops | Logic - Flip Flops | 
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| Product Status | Obsolete | Obsolete | 
| Function | Standard | Standard | 
| Type | D-Type | D-Type | 
| Output Type | Tri-State, Non-Inverted | Tri-State, Non-Inverted | 
| Number of Elements | 2 | 2 | 
| Number of Bits per Element | 10 | 10 | 
| Clock Frequency | 250 MHz | 250 MHz | 
| Max Propagation Delay @ V, Max CL | 3.3ns @ 5V, 50pF | 3.3ns @ 5V, 50pF | 
| Trigger Type | Positive Edge | Positive Edge | 
| Current - Output High, Low | 32mA, 64mA | 32mA, 64mA | 
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 
| Current - Quiescent (Iq) | 1 mA | 1 mA | 
| Input Capacitance | 3 pF | 3 pF | 
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Supplier Device Package | 56-SSOP | 56-SSOP | 
| Package / Case | 56-BSSOP (0.295", 7.50mm Width) | 56-BSSOP (0.295", 7.50mm Width) |