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NXP USA Inc. PCA2000U/10AC/1,00
- Part No.:
- PCA2000U/10AC/1,00
- Manufacturer:
- NXP USA Inc.
- Category:
- Specialized ICs
- Package:
- Die
- Description:
- IC WATCH CIRCUIT WAFER
- Quantity:
Unit Price:$0
Ext Price:$0
- Payment:
- Shipping:
Product Details
PCA2000U/10AC/1,00 - Adaptive Watch Motor-Drive Circuit
NXP PCA2000U/10AC/1,00 is an eight-pad wire-bond die for 32 kHz quartz watch timing, adaptive bipolar stepping-motor drive and programmable battery end-of-life indication.
Circuit and die information follows the NXP PCA2000/PCA2001 product data sheet, Rev. 9. Confirm the exact orderable code, lifecycle and one-time-programmable configuration before design use.
Overview
The PCA2000 combines a 32 kHz crystal oscillator, programmable time adjustment, motor-step detection and adaptive pulse drive for a battery-operated watch with a bipolar stepping motor. Its battery End-of-Life (EOL) detector can indicate low voltage through a changed motor pulse pattern.
Key Advantages
Adaptive motor energy
Step detection adjusts the motor-drive level to the torque required by the mechanism.
Battery warning
A programmable voltage threshold changes the pulse pattern when a selected battery chemistry reaches its EOL condition.
Digital calibration
One-time-programmable time adjustment supports fine trimming of the assembled watch.
Low operating current
Current between motor pulses is 90 nA typical under the data-sheet reference conditions.
Feature Summary
Quartz timing
Amplitude-regulated 32 kHz oscillator with electrically programmable time calibration.
Motor control
One-second bipolar motor pulses in normal operation, with step detection and correction behavior.
Programmable pulse
Pulse width, modulation and adaptation range are stored in OTP memory.
Stop and test
RESET bonding pad supports accurate time setting, motor stop and accelerated testing.
Package & Footprint
Manufacturer form: PCA200xU wire-bond die with eight bonding pads and nominal dimensions 1.16 × 0.86 × 0.20 mm. The data-sheet ordering table identifies PCA2000U/10AC/1 as sawn wafer on a film-frame carrier; NXP's discontinuation record lists the exact PCA2000U/10AC/1,00 orderable code.
- Use NXP's bare-die outline and pad coordinates for bond-wire planning.
- The substrate is tied to VSS; the die pad must float or connect to VSS.
- Leave internally connected pad 2 open in normal operation.
A standard package JPG is not applicable to this manufacturer-confirmed bare die. Verify film-frame handling, die attachment and ESD controls in the assembly process.
Pin Functions
These numbers identify bonding pads, not molded-package leads.
Confirm orientation and pad coordinates against the manufacturer die drawing before assembly.
Key Specifications
| Function | 32 kHz watch timing with adaptive bipolar motor drive and battery EOL indication |
|---|---|
| Manufacturer die type | PCA2000U/10AC/1; exact orderable code PCA2000U/10AC/1,00 |
| Package form | Wire-bond die; sawn wafer on film-frame carrier |
| Bonding pads | 8 |
| Nominal die dimensions | 1.16 × 0.86 × 0.20 mm |
| Ambient range | −10 to +60 °C |
| Normal operating supply | 1.1 to 3.6 V over −10 to +60 °C |
| Reference oscillator | 32.768 kHz quartz crystal |
| Current between motor pulses | 90 nA typical, 120 nA maximum at VDD = 1.55 V and Tamb = 25 °C reference conditions |
| Normal motor-pulse period | One second |
| Programmable motor-pulse width | 0.98 to 7.8 ms by OTP setting |
| Battery EOL threshold | 1.38 V typical for silver-oxide or 2.5 V typical for lithium setting |
| EOL pulse pattern | Four pulses every four seconds when the threshold is crossed |
Electrical values depend on the data-sheet test conditions, battery selection, quartz network and programmed OTP state.
Replacement Considerations
The related PCA2001 lacks PCA2000's battery EOL function and is not an unconditional replacement. Any replacement must be checked for bond-pad geometry, carrier, OTP settings, EOL behavior, voltage range, motor timing, lifecycle and assembly flow. No drop-in equivalence is asserted.
Manufacturer Information
The product record identifies NXP USA Inc. NXP's PCA2000/PCA2001 product data sheet, Rev. 9 (24 November 2011), defines the circuit and die. NXP discontinuation notification 202509010DN lists the exact PCA2000U/10AC/1,00 code for full withdrawal; confirm current manufacturer lifecycle before design-in.
Applications
Battery-operated wristwatches
32 kHz quartz timing, bipolar stepping-motor drive and low-battery indication.
Wire-bond watch modules
Bare-die assemblies with post-assembly timing calibration and suitable motor matching.
Quality & Authenticity
Check the full orderable code, marking, film-frame carrier, traceability and die condition against purchasing records. Follow manufacturer handling and ESD guidance. This description does not certify any individual lot or continued manufacturer availability.
FAQ
Is this a molded eight-pin IC?
No. It is an eight-pad wire-bond die on a sawn-wafer film-frame carrier.
How does the battery EOL function appear?
At the programmed battery threshold, the motor pattern changes from one pulse each second to four pulses every four seconds.
Is this part suitable for a new design?
NXP has listed the exact code for full withdrawal. Confirm lifecycle and sourcing before selection.
Engineering Notice
Use manufacturer-controlled documentation for final design decisions. Validate quartz loading, motor torque, EOL threshold choice, OTP timing, pad layout, substrate connection and lifecycle status before release.
PCA2000U/10AC/1,00 Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- NXP USA Inc.
- Series:
- -
- Package/Case:
- Die
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Watch Circuit
- Applications:
- Wrist Watches
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Wafer
- Grade:
- -
- Qualification:
- -
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