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PCA148X
Datasheet
General description
The PCA148x series devices are CMOS integrated circuits specially suited for battery-operated, quartz-crystal-controlled wrist-watches, with a bipolar stepping motor.
Features
- 32 kHz oscillator, amplitude regulated with excellent frequency stability
- High immunity of the oscillator to leakage currents
- Time calibration electrically programmable and reprogrammable (via EEPROM)
- A quartz crystal is the only external component required
- Very low current consumption; typically 170 nA
- Output for bipolar stepping motors of different types
- Up to 50% reduction in motor current compared with conventional circuits, by self adaption of the motor pulse width in accordance with the required torque of the motor
- No loss of motor steps possible because of on-chip detection of the induced motor voltage
- Indication for battery end-of-life
- Stop function for accurate timing
- Power-on reset for fast testing
- Various test modes for testing the mechanical parts of the watch and the IC.
Products/packages
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| PCA1485U/10/F2 | PCA1485U/10/F2,005 | 9352 400 30005 | Volume production | Uncased die | Chips on Wafer, Pre-Sawn, On FFC | No Marking |
The variants in the table below are discontinued. See the table Discontinued information for more information.
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| PCA1487U/10/F2 | PCA1487U/10/F2,005 | 9352 400 50005 | Discontinued Replacement product | Uncased die | Chips on Wafer, Pre-Sawn, On FFC | No Marking |
Quality/reliability/chemical content
| Type number | Orderable part number | Chemical content | RoHS | Leadfree Conversion date | RHF | IRF (FIT) | MTBF (hours) | MSL Lead-free |
|---|---|---|---|---|---|---|---|---|
| PCA1485U/10/F2 | PCA1485U/10/F2,005 | PCA1485U_10_F2 |
| Always Pb-free |
The variants in the table below are discontinued. See the table Discontinued information for more information.
| Type number | Orderable part number | Chemical content | RoHS | Leadfree Conversion date | RHF | IRF (FIT) | MTBF (hours) | MSL Lead-free |
|---|---|---|---|---|---|---|---|---|
| PCA1487U/10/F2 | PCA1487U/10/F2,005 | PCA1487U_10_F2 |
| Always Pb-free |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Orderable part number | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|---|
| PCA1485U/10/F2 | 9352 400 30005 | PCA1485U/10/F2,005 | JAPAN | CHIP ONE STOP | no | 03/19/2010 | Buy online | Order samples |
Discontinued information
| Type number | Ordering code (12NC) | Last-time buy date | Last-time delivery date | Replacement product | DN Notice | Status | Comments |
|---|---|---|---|---|---|---|---|
| PCA1487U/10/F2 | 935240050005 | 30-sep-10 | 31-dec-10 | PCA2000U/10AC/1 | DN 65 |
| Standard End of Life. Moved to enhanced version. |
Applications
- Digital fibre optic receiver in short, medium and long haul optical telecommunications transmission systems or in high speed data networks
- Wideband RF gain block.
