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IC RTC CLK/CALENDAR I2C 8-SOIC
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Nhà sản xuấtAnalog Devices Inc./Maxim tích hợp
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Ông. Phần #DS1307Z+T&R
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Bảng dữ liệu DS1307Z+T&R DataSheet
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Gói SOIC-8
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Có sẵn2255
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Supplier | Analog Devices Inc./Maxim Integrated |
| Package / Case | Tape & Reel (TR) |
| Part Status | Obsolete |
| Type | Clock/Calendar |
| Features | Leap Year, NVSRAM, Square Wave Output |
| Memory Size | 56B |
| Time Format | HH:MM:SS (12/24 hr) |
| Date Format | YY-MM-DD-dd |
| Interface | I²C, 2-Wire Serial |
| Voltage - Supply | 4.5V ~ 5.5V |
| Voltage - Supply, Battery | 2V ~ 3.5V |
| Current - Timekeeping(Max) | 200µA @ 5V |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
Tổng quan
Description
Key features:
- 56-byte NV RAM for data storage.
- I²C interface (up to 400kHz) for easy microcontroller communication.
- Battery backup support for continuous timekeeping during power loss.
- Low power consumption (under 500nA in battery mode).
- Industrial temperature range (-40°C to +85°C).
The "T&R" suffix indicates it comes in tape-and-reel packaging for automated assembly.
Commonly used in embedded systems, IoT devices, and data loggers for accurate timekeeping. Requires an external 32.768kHz crystal and backup battery for operation.
For more details, refer to the official DS1307 datasheet.
Features
- I²C Interface: Simple serial communication (up to 400kHz).
- Timekeeping: Tracks seconds, minutes, hours, day, date, month, and year (with leap-year compensation up to 2100).
- Battery Backup: Operates from a 3V coin cell when main power fails.
- Low Power: Consumes <500nA in battery mode.
- 56-Byte NV RAM: For data storage.
- Programmable Square-Wave Output: Configurable frequencies (1Hz, 4kHz, 8kHz, 32kHz).
- Operating Voltage: 4.5V to 5.5V (main power).
- Industrial Temp Range: -40°C to +85°C.
- Tape & Reel (T&R) Packaging: For automated assembly.
Ideal for embedded systems, IoT, and consumer electronics requiring accurate timekeeping.
Pinout
1. X1, X2 (Pins 1, 2) – Connect to a 32.768 kHz crystal.
2. VBAT (Pin 3) – Backup battery input for power retention.
3. GND (Pin 4) – Ground.
4. SDA (Pin 5) – I²C data line.
5. SCL (Pin 6) – I²C clock line.
6. SQW/OUT (Pin 7) – Square wave/output driver.
7. VCC (Pin 8) – Main power supply (5V or 3.3V).
It provides timekeeping, calendar functions, and battery backup support in a SOIC-8 package.
Application
- Embedded Systems: Timestamping events in microcontrollers (e.g., Arduino, Raspberry Pi).
- Consumer Electronics: Clocks in appliances, digital displays, and smart home devices.
- Industrial Automation: Logging data with timestamps in PLCs and sensors.
- Automotive: Dashboard clocks and event recorders.
- Medical Devices: Time-sensitive data logging in patient monitors.
- IoT Devices: Battery-backed timekeeping for low-power sensors.
Its I²C interface, low power consumption, and battery backup support make it versatile for time-sensitive applications.