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Utsource certified used parts
Utsource certified used parts provide the following guarantees:
1. Utsource will inspect the goods, including appearance inspection (no serious damage to the appearance), select qualified and honest suppliers, and ensure 98% qualification rate.
2. Some parts are tested by machine.
3. Utsource certified parts can be returned and refunded unconditionally within 60 days.
Description
Nonvolatile Controller x 4 Chip
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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!！
Preview of the first 3 pages of the data sheet
| QUANTITY | UNIT PRICE | PLUS UNIT PRICE | TOTAL PRICE |
|---|---|---|---|
| ≥1: | US $1.86480 | US $1.67832 | US $1.67832 |
| ≥5: | US $1.24320 | US $1.11888 | US $5.59440 |
| ≥10: | US $1.11888 | US $1.00699 | US $10.06990 |
| ≥20: | US $1.08780 | US $0.97902 | US $19.58040 |
| ≥50: | US $1.05672 | US $0.95105 | US $47.55250 |
| ≥100: | US $1.02564 | US $0.92308 | US $92.30800 |
| ≥200: | US $0.99456 | US $0.89510 | US $179.02000 |
| ≥500: | US $0.98213 | US $0.88392 | US $441.96000 |
| ≥1000: | US $0.96348 | US $0.86713 | US $867.13000 |
Substitute (equivalent) Product
| Product Name | Description |
|---|---|
| DS1225 | Real-time clock (RTC) with integrated crystal, 32.768 kHz, I2C interface, 5 V supply, 8-pin DIP/SOIC package. |
| PCF8563 | Low-power CMOS real-time clock (RTC) with I2C-bus interface, 32.768 kHz crystal oscillator, 5 V supply, 8-pin SOIC package. |
| MCP7940N | Integrated real-time clock (RTC) and calendar, 32.768 kHz crystal, I2C interface, 5 V supply, 8-pin SOIC package. |
| DS1307 | Low-power, I2C real-time clock (RTC) with RAM, 32.768 kHz crystal, 5 V supply, 8-pin DIP/SOIC package. |
Product Usage
The DS1221 is a digital temperature sensor and thermostat IC from Maxim Integrated (now part of Analog Devices). It provides 9-bit temperature readings and can be configured to function as a thermostat with programmable high and low temperature limits. Here are some common applications and circuits where the DS1221 might be used:
Temperature Monitoring Systems:
Thermostat Control:
Consumer Electronics:
Medical Devices:
Automotive Applications:
Environmental Monitoring:
Here is a simple example of how the DS1221 can be used in a temperature monitoring circuit:
RequiredVCC (DS1221) --- 3.3V
GND (DS1221) --- GND
SDA (DS1221) --- SDA (Microcontroller)
SCL (DS1221) --- SCL (Microcontroller)
#include <Wire.h>
#define DS1221_I2C_ADDRESS 0x48
void setup() {
Wire.begin();
Serial.begin(9600);
}
void loop() {
int temp = readTemperature();
Serial.print("Temperature: ");
Serial.print(temp / 16.0);
Serial.println(" C");
delay(1000);
}
int readTemperature() {
Wire.beginTransmission(DS1221_I2C_ADDRESS);
Wire.write(0); // Point to the temperature register
Wire.endTransmission();
Wire.requestFrom(DS1221_I2C_ADDRESS, 2);
if (Wire.available() == 2) {
int msb = Wire.read();
int lsb = Wire.read();
return (msb << 8) | lsb;
}
return 0;
}
This code reads the temperature from the DS1221 and prints it to the serial monitor. The temperature is read in 9-bit format and converted to degrees Celsius.
The DS1221 is a versatile component that can be used in a wide range of applications where accurate temperature sensing and control are required. Its ease of integration with microcontrollers and its ability to function as a thermostat make it a popular choice for many projects and commercial products.
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| 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.
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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.
DS1221
DS1221 has several brands around the world that may have alternate names for DS1221 due to regional differences or acquisition. DS1221 may also be known as the following names:
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