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PCA8565
Datasheet
General description
The PCA8565 is a CMOS real time clock/calendar optimized for low power consumption. A programmable clock output, interrupt output and voltage-low detector are also provided. All address and data are transferred serially via a two-line bidirectional I2C-bus. Maximum bus speed is 400 kbit/s. The built-in word address register is incremented automatically after each written or read data byte.
Features
- Provides year, month, day, weekday, hours, minutes and seconds based on 32.768 kHz quartz crystal
- Century flag
- Clock operating voltage: 1.8 to 5.5 V
- Extended operating temperature range: -40 to +125 Cel
- Low backup current; typical 0.5 uA at VDD = 3.0 V and Tamb =25 Cel
- 400 kHz two-wire I2C-bus interface (at VDD = 1.8 to 5.5 V)
- Programmable clock output for peripheral devices (32.768 kHz, 1024 Hz, 32 Hz and 1 Hz)
- Alarm and timer functions
- Integrated oscillator capacitor
- Internal power-on reset
- I2C-bus slave address: read A3H and write A2H
- Open-drain interrupt pin.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| PCA8565BS/1 | PCA8565BS/1-T | 9352 822 54118 | Volume production | SOT650-1
(HVSON10) | Reel Pack, SMD, 13" | Standard Marking | PCA8565BS/1
| Always Pb-free |
| PCA8565TS/1 | PCA8565TS-T | 9352 721 32118 | Volume production | SOT505-1
(TSSOP8) | Reel Pack, SMD, 13" | Standard Marking | Not available
| week 18, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|
| PCA8565BS/1 | 9352 822 54118 | Order samples | |||||||
| PCA8565TS/1 | 9352 721 32118 | 1.1100 | NA | AVNET ELECTRONICS MARKETING | 2,500 | 1/7/2009 | Buy online | Order samples | |
| NA | DIGI-KEY CORPORATION | 2,500 | 1/6/2009 | Buy online | |||||
| NA | DIGI-KEY CORPORATION | 4,825 | 1/6/2009 | Buy online | |||||
| NA | MOUSER ELECTRONICS | 1,755 | 1/7/2009 | Buy online |
Applications
- Automotive
- Industrial
- Other applications that require a wide operating temperature range.
Design support
Support Documents
75016543;
An industry-leading portfolio of cost-effective, power-saving solutions for major home appliances (2008-06-01)Parametrics/similar products
| Type number | Package | Programmable alarm | Programmable timer | I²C-bus interface | Supply Voltage clock(V) | Supply Voltage I²C-bus(V) | Years & leap year tracking | M:H, D:M |
|---|---|---|---|---|---|---|---|---|
| PCA8565TS/1 | SOT505-1
(TSSOP8) | yes | yes | yes | 1.0 to 5.5 | 1.8 to 5.5 | yes | yes |
Similar products
PCA8565
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