Features
- Ten LVCMOS clock outputs:
- Five LVCMOS 125MHz Ethernet outputs
- Three LVCMOS 25MHz /125MHz Ethernet outputs
- One LVCMOS 24MHz USB output
- One LVCMOS 25MHz REF output
- QREF ou tput; can be used to drive X1 of other devices, saving a crystal
- Selectable crystal input, or differential LVPECL input; test mode
- RMS Phase Jitter, 125MHz, integration range 12kHz – 20MHz: 0.75ps (typical)
- Cycle-to-Cycle jitter: 75ps (typical)
- Flexible voltage supply modes; supports legacy and future system requirements, minimizes power consumption
- Core voltage: (VDD, VDD_XTAL, VDDA) /Output voltage: (VDDO_A, VDDO_B, VDDO_C, VDDO_REF)Core / Output3.3V / 3.3V3.3V / 2.5V3.3V / 1.8V2.5V / 2.5V2.5V / 1.8V
- -40°C to +85°C ambient operating temperature
- Space-saving Pb-free, 48-pin 7 × 7 mm QFN; minimal board space
- Lead-free (RoHS 6) packaging
840NT4-01 - Block Diagram
Description
The 840NT4-01I is clock generator designed to provide ethernet and USB clocks for Freescale B4/ T4-based systems. The 840NT4-01I utilizes Renesas' FemtoClock NG® PLL technology to synthesize eight low phase-jitter Ethernet reference clocks. The clock generator also provides a 24MHz USB reference clock and a 25MHz reference output.
| Part Number | Status | Samples | Stock | Package | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pb (Lead) Free | Pb Free Category | Temp. Range (°C) |
|---|---|---|---|---|---|---|---|---|---|---|
| 840NT4-01NLGI | Obsolete | N/A | Out of Stock | VFQFPN | 48# | Tray | 3 | Yes | e3 Sn | -40 to 85°C |
| 840NT4-01NLGI8 | Obsolete | N/A | Out of Stock | VFQFPN | 48# | Reel | 3 | Yes | e3 Sn | -40 to 85°C |
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- Application NotePDF 187 KB R31AN0065EU0101 Rev.1.01 Nov 14, 2023
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- Application NotePDF 442 KB 7WDXRDKU4E7E-5-57298 May 08, 2014
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- Application NotePDF 120 KB 7WDXRDKU4E7E-5-57289 May 06, 2014
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- Application NotePDF 187 KB R31AN0065EU0101 Rev.1.01 Nov 14, 2023
- Application NotePDF 1.99 MB 7WDXRDKU4E7E-5-57242 Mar 01, 2022
Application Notes & White Papers (22)
- End Of Life NoticePDF 938 KB Feb 28, 2022
- End Of Life NoticePDF 909 KB Jan 20, 2022
- Product Change NoticePDF 983 KB Jun 25, 2019
- Product Change NoticePDF 941 KB 7WDXRDKU4E7E-5-56052 Sep 11, 2013
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