Package Information
| CAD Model: | View CAD Model |
| Pkg. Type: | TQFP |
| Pkg. Code: | EDG64 |
| Lead Count (#): | 64 |
| Pkg. Dimensions (mm): | 10.0 x 10.0 x 1.0 |
| Pitch (mm): | 0.5 |
Environmental & Export Classifications
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542.39.0090 |
Product Attributes
| Lead Count (#) | 64 |
| Carrier Type | Tray |
| Moisture Sensitivity Level (MSL) | 3 |
| Qty. per Reel (#) | 0 |
| Qty. per Carrier (#) | 160 |
| Pb (Lead) Free | Yes |
| Pb Free Category | e3 Sn |
| Temp. Range (°C) | 0 to 70°C |
| Accepts Spread Spec Input | Yes |
| Additive Phase Jitter Typ RMS (fs) | 200 |
| Additive Phase Jitter Typ RMS (ps) | 0.2 |
| App Jitter Compliance | PCIe Gen1, PCIe Gen2, PCIe Gen3 |
| Architecture | Common |
| Core Voltage (V) | 3.3 |
| Diff. Input Signaling | LVPECL, LVHSTL, LVDS, HCSL |
| Diff. Inputs | 1 |
| Diff. Output Signaling | HCSL |
| Diff. Outputs | 21 |
| Function | Buffer |
| Input Freq (MHz) | 250 |
| Input Type | HCSL, LVDS, HSTL, LVPECL |
| Inputs (#) | 1 |
| Length (mm) | 10 |
| MOQ | 160 |
| Output Banks (#) | 1 |
| Output Freq Range (MHz) | 250 |
| Output Skew (ps) | 395 |
| Output Type | HCSL |
| Output Voltage (V) | 3.3 |
| Outputs (#) | 21 |
| PLL | No |
| Package Area (mm²) | 100 |
| Pitch (mm) | 0.5 |
| Pkg. Dimensions (mm) | 10.0 x 10.0 x 1.0 |
| Pkg. Type | TQFP |
| Prog. Clock | No |
| Published | No |
| Requires Terms and Conditions | Does not require acceptance of Terms and Conditions |
| Supply Voltage (V) | 3.3 - 3.3 |
| Tape & Reel | No |
| Thickness (mm) | 1 |
| Width (mm) | 10 |
Resources for 851021
Description
The 851021 is a 1-to-21 Differential HCSL Fanout Buffer. The 851021 is designed to translate any differential signal levels to differential HCSL output levels. An external reference resistor is used to set the value of the current supplied to an external load/termination resistor. The load resistor value is chosen to equal the value of the characteristic line impedance of 50 ohms. The 851021 is characterized at an operating supply voltage of 3.3V. The differential HCSL outputs, accurate crossover voltage and duty cycle make the 851021 ideal for interfacing to PCI Express® and FBDIMM applications.