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RS5C338A
Real Time Clock, Volatile, 0 Timer(s), CMOS, PDSO10, 6.40 X 3.50 MM, 1.25 MM HEIGHT, SSOP-10
RS5C338A
Real Time Clock, Volatile, 0 Timer(s), CMOS, PDSO10, 6.40 X 3.50 MM, 1.25 MM HEIGHT, SSOP-10
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RS5C338A DataSheet
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Details
OUTLINEThe R×5C338A are CMOS real-time clock ICs connected to the CPU by three signal lines CE (Chip Enable), SCLK (Serial Clock), and SIO (Serial Input/Output), and configured to perform serial transmission of time and calendar data to the CPU. These models incorporate different functional circuits. FEATURES• Timekeeping supply voltage ranging from 1.45 to 5.5 volts• Low supply current: TYP. 0.35µA (MAX. 0.8µA) at 3 volts (at 25˚C)• Only three signal lines (SCLK, SIO, and CE) required for connection to the CPU. Maximum clock frequency of 2 MHz (with VDD of 5 volts)• Time counters (counting hours, minutes, and seconds) and calendar counters (counting years, months, days, and weeks) (in BCD format)• 1900/2000 identification bit for Year 2000 compliance• Interrupt circuit configured to generate interrupt signals (with interrupts ranging from 0.5 seconds to 1 month) to the CPU and provided with an interrupt flag and an interrupt halt circuit• 2 alarm circuits (Alarm_W for week , hour , and minute alarm settings and Alarm_D for hour and minute alarm settings)• 32-kHz clock circuit (CMOS output, equipped with a control pin)• Oscillation halt sensing circuit which can be used to judge the validity of internal data• Supply voltage monitoring circuit with two supply voltage monitoring threshold settings• Automatic identification of leap years up to the year 2099• Selectable 12-hour and 24-hour mode settings • Built-in oscillation stabilization capacitors (CG and CD)• High precision oscillation adjustment circuit • CMOS process• Ultra-compact 10-pin SSOP (RS5C338A with a height of 1.25mm and size of 6.4×3.5mm)Ultra-compact 10-pin SSOP-G (RV5C338A with a height of 1.20mm and size of 4.0×2.9mm)
Key Features
- Timekeeping supply voltage ranging from 1.45 to 5.5 volts
- Low supply current: TYP. 0.35µA (MAX. 0.8µA) at 3 volts (at 25˚C)
- Only three signal lines (SCLK, SIO, and CE) required for connection to the CPU. Maximum clock frequency of 2 MHz (with VDD of 5 volts)
- Time counters (counting hours, minutes, and seconds) and calendar counters (counting years, months, days, and weeks) (in BCD format)
- 1900/2000 identification bit for Year 2000 compliance
- Interrupt circuit configured to generate interrupt signals (with interrupts ranging from 0.5 seconds to 1 month) to the CPU and provided with an interrupt flag and an interrupt halt circuit
- 2 alarm circuits (Alarm_W for week , hour , and minute alarm settings and Alarm_D for hour and minute alarm settings)
- 32-kHz clock circuit (CMOS output, equipped with a control pin)
- Oscillation halt sensing circuit which can be used to judge the validity of internal data
- Supply voltage monitoring circuit with two supply voltage monitoring threshold settings
- Automatic identification of leap years up to the year 2099
- Selectable 12-hour and 24-hour mode settings
- Built-in oscillation stabilization capacitors (CG and CD)
- High precision oscillation adjustment circuit
- CMOS process
- Ultra-compact 10-pin SSOP (RS5C338A with a height of 1.25mm and size of 6.4×3.5mm)
- Ultra-compact 10-pin SSOP-G (RV5C338A with a height of 1.20mm and size of 4.0×2.9mm)
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Pbfree Code | No | Rohs Code | No |
| Part Life Cycle Code | Transferred | Part Package Code | SSOP |
| Pin Count ! | 10 | Reach Compliance Code | |
| ECCN Code | EAR99 | HTS Code ! | 8542.39.00.01 |
| Clock Frequency-Max | 0.032 MHz | Information Access Method | SERIAL, 2-WIRE/I2C |
| Interrupt Capability ! | Y | JESD-30 Code | R-PDSO-G10 |
| JESD-609 Code | e0 | Length | 4.4 mm |
| Moisture Sensitivity Level | 1 | Number of Terminals | 10 |
| Number of Timers | Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -40 °C | Package Body Material | PLASTIC/EPOXY |
| Package Code | SOP | Package Equivalence Code | TSSOP10,.25,20 |
| Package Shape | RECTANGULAR | Package Style | SMALL OUTLINE |
| Power Supplies ! | 2/5.5 V | Qualification Status ! | Not Qualified |
| Seated Height-Max | 1.45 mm | Supply Voltage-Max | 5.5 V |
| Supply Voltage-Min | 2 V | Supply Voltage-Nom | 3 V |
| Surface Mount ! | YES | Technology | CMOS |
| Temperature Grade ! | INDUSTRIAL | Terminal Finish | TIN LEAD |
| Terminal Form ! | GULL WING | Terminal Pitch ! | 0.5 mm |
| Terminal Position | DUAL | Time-Min | SECONDS |
| Volatile | YES | Width | 3.5 mm |
| uPs/uCs/Peripheral ICs Type | TIMER, REAL TIME CLOCK |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
