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PCK2021
Datasheet
General description
The PCK2021 is a clock synthesizer/driver for a Pentium IIITM and other similar processors.
The PCK2021 has six differential pair CPU current source outputs, two 33 MHz outputs, one 3V66 output, and two 48 MHz clocks which can be disabled on power-up, and one 3.3 V reference clock at 14.318 MHz which can also be disabled on power-up.
The part possesses a dedicated power-down input pin for power management control. This input is synchronized on chip, and ensures glitch-free output transitions. In addition, the part can be configured to disable the 48 MHz outputs for lower power operation and an increase in the performance of the functioning outputs. The REF and PCI outputs can also be disabled for the highest performance of the Host outputs.
Features
- 3.3 V operation
- Six differential CPU clock pairs
- Two PCI clocks at 33 MHz and one 3V66 clock
- Two 48 MHz clocks at 3.3 V
- One 14.318 MHz reference clock
- Power management control pins
- Host clock jitter less than 200 ps cycle-to-cycle
- Host clock skew less than 150 ps pin-to-pin
- Spread Spectrum capability
- Optimized frequency and spread spectrum performance
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| PCK2021DL | 9352 703 99518 | Samples available | SOT370-1
(SSOP48) | Reel Dry Pack, SMD, 13" | Standard Marking | PCK2021DL
| week 10, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| PCK2021DL | 9352 703 99518 | not available |
Parametrics/similar products
| Type number | Package | Supply voltage(V) | Application | Other features | Operating temp.(Cel) | Outputs | Rise/fall time(ps) | Output frequency range(MHz) | Jitter (pk-pk)(ps) | Output skew(ps) | Programmability |
|---|---|---|---|---|---|---|---|---|---|---|---|
| PCK2021DL | SOT370-1
(SSOP48) | 3.3 | CPU clock synthesis & driver for 100/133MHz multi-processor Pentium III applications (CK00) |
spread spectrum synchronous individual output power-down | 0~+70 |
5 x LVTTL 6 x differential host clock output | 700 |
14.318 33 48 66 100 133 200 | 200 | 150 | Pin select |
Similar products
PCK2021 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
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