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PCA2002
Datasheet
General description
The PCA2002 is a CMOS integrated circuit for battery operated wrist watches with a 32 kHz quartz crystal as the timing element and a bipolar stepping motor. The crystal oscillator and the frequency divider are optimized for minimum current consumption. A timing accuracy of 1 ppm is achieved with a programmable, digital frequency adjustment.
The output period and the output pulse width can be programmed. It can be selected between a full output pulse or a chopped output pulse with a duty cycle of 75 pct. In addition, a stretching pulse can be added to the primary driving pulse.
Pin RESET is used for stopping the motor, accurate time setting and for an accelerated testing of the watch.
Features
- 32 kHz quartz oscillator, amplitude regulated with excellent frequency stability and high immunity to leakage currents
- Electrically programmable time calibration with 1 ppm resolution (stored in OTP memory)
- The quartz crystal is the only external component required
- Very low current consumption: typically 90 nA
- Output pulses for bipolar stepping motors
- Five different programmable output periods (1 s to 30 s)
- Output pulse width programmable between 1 ms and 8 ms
- Full or chopped motor pulse and pulse stretching, selectable
- Stop function for accurate time setting and current saving during the shelf life
- Test mode for accelerated testing of the mechanical parts of the watch
- Test bits for type recognition (version B)
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| PCA2002CX8/5/1 | 9352 868 21025 | Volume production | Uncased dieUncased die | Chips on Wafer, Un-Sawn, Electrical Tested | No Marking | PCA2002CX8/5/1
| ||
| PCA2002TK/1 | PCA2002TK-T | 9352 751 38118 | Volume production | SOT650-1
(HVSON10) | Reel Pack, SMD, 13" | Standard Marking | PCA2002TK/1
| Always Pb-free |
| PCA2002U/10AB/1 | 9352 781 68005 | Volume production | Uncased dieUncased die | Chips on Wafer, Pre-Sawn, On FFC | No Marking | PCA2002U/10AB/1
| Always Pb-free | |
| PCA2002U/AB/1 | 9352 781 65026 | Volume production | Uncased dieUncased die | Die In Waffle Carriers | No Marking | PCA2002U/AB/1
| Always Pb-free | |
| PCA2003U/10AA/1 | 9352 797 24005 | Volume production | Uncased dieUncased die | Chips on Wafer, Pre-Sawn, On FFC | No Marking | PCA2003U/10AA/1
|
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| PCA2002CX8/5/1 | 9352 868 21025 | Order samples | ||||||
| PCA2002TK/1 | 9352 751 38118 | 0.4800 | not available | |||||
| PCA2002U/10AB/1 | 9352 781 68005 | Order samples | ||||||
| PCA2002U/AB/1 | 9352 781 65026 | Order samples | ||||||
| PCA2003U/10AA/1 | 9352 797 24005 | Order samples |
Parametrics/similar products
| Type number | Package | Application | FUNCTION | Operating temp.(Cel) | No. of Pins | 32 kHz Watch Circuit Type |
|---|---|---|---|---|---|---|
| PCA2002TK/1 | SOT650-1
(HVSON10) | CMOS ICs for Clocks, Watches and Real Time Clocks | Watches | -10~60 | 10 | OTP memory to store settings |
Similar products
PCA2002 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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