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1. Utsource guarantees 100% original.
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Description
Trickle-Charge Timekeeping Chip
All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.
The parameters and performance indicators of this product are sourced from the internet. In case of discrepancies, please refer to the manufacturer's technical specifications!！
| Parameter | Symbol | Min | Typical | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | Vcc | 2.5 | - | 5.5 | V |
| Data Input/Output Current | I/O | - | 1.0 | 1.5 | mA |
| Clock Output Frequency | fCLK | 1.0 | - | 32.768 | kHz |
| Standby Current | ISBY | 0.5 | - | 1.0 | μA |
| Operating Current | IOP | 200 | - | 400 | μA |
| RAM Size | - | 31 x 8 | - | bytes | |
| Temperature Range | Toper | -40 | - | +85 | °C |
Power Supply:
Data Input/Output (I/O):
Clock Output (CLK):
Reset (RST):
Communication Protocol:
Time and Date Registers:
RAM Usage:
Power Management:
Temperature Considerations:
Programming Example:
Required// Example in C
void set_time(uint8_t sec, uint8_t min, uint8_t hour) {
uint8_t cmd = 0x8E; // Command to write to seconds register
uint8_t data[3] = {bcd_encode(sec), bcd_encode(min), bcd_encode(hour)};
ds1302_write(cmd, data, 3);
}
void ds1302_write(uint8_t cmd, uint8_t *data, uint8_t len) {
// Implement the write function to send the command and data
}
uint8_t bcd_encode(uint8_t value) {
return (value / 10) << 4 | (value % 10);
}
Reading Time:
void get_time(uint8_t *sec, uint8_t *min, uint8_t *hour) {
uint8_t cmd = 0x8F; // Command to read from seconds register
uint8_t data[3];
ds1302_read(cmd, data, 3);
*sec = bcd_decode(data[0]);
*min = bcd_decode(data[1]);
*hour = bcd_decode(data[2]);
}
void ds1302_read(uint8_t cmd, uint8_t *data, uint8_t len) {
// Implement the read function to receive the data
}
uint8_t bcd_decode(uint8_t value) {
return (value >> 4) * 10 + (value & 0x0F);
}
By following these instructions, you can effectively use the DS1302ZN real-time clock (RTC) in your projects.
(For reference only)Preview of the first 3 pages of the data sheet
| QUANTITY | UNIT PRICE | PLUS UNIT PRICE | TOTAL PRICE |
|---|---|---|---|
| ≥1: | US $0.58422 | US $0.52580 | US $0.52580 |
| ≥101: | US $0.48685 | US $0.43817 | US $44.25517 |
Global Logistics Country List
| Flag | Country | Estimated Delivery Time | Minimum First Weight Cost | ||
|---|---|---|---|---|---|
| Express | Standard Shipping | Express (0.5kg) | Standard Shipping (0.05kg) | ||
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Returns are normally accepted when completed within 90 days from the date of the parcel delivered.
Defective ( Please provide a third party quality report of nonconforming products)
Return Freight charges must be prepaid; we will not accept COD shipments.
Warranty
All UTSOURCE purchases have a 90 days money back return policy, plus a 100 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
DS1302ZN
DS1302ZN has several brands around the world that may have alternate names for DS1302ZN due to regional differences or acquisition. DS1302ZN may also be known as the following names:
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