The AT24C32 IC is a 4K x 8 Serial Electrically Erasable PROM (32Kbit). It was created with low-power advanced applications in mind, such as personal communications and data collecting. It’s an 8-pin plastic DIP package and an 8-pin surface mount SOIC package.
The cascadable feature of the device allows up to eight devices to share a common 2-wire bus. The operational voltage range of this IC is 1.8V to 5.5V, making it suitable for both 3.3V and 5V systems. The AT24C32 has a 32Kbit memory area and uses a 2-Wire Serial Interface. If you need a low-power, low-voltage EEPROM, this is the IC to utilize.
AT24C32 Pinout Configuration
Pin Number | Pin Name | Description |
1,2,3 | A0,A1,A2 | User configured Chip Select pins, useful during cascading |
4 | Vss (Ground) | Connected to the ground of the circuit |
5 | Serial Data (SDA) | Serial Data pin for I2C Communication |
6 | Serial Clock (SCL) | Serial Clock pin for I2C Communication |
7 | WP (Write Protect) | If connected to Vss write is enabled, if connected to Vcc write is disabled. |
8 | Vcc | Connect to supply rail |
Features and Specifications
- Supply Voltage: 1.8V to 5.5V
- Supply Current – Max: 2 mA
- Memory Size: 32 Kbit
- Organization: 4 k x 8
- Interface Type: Serial, 2-Wire, I2C
- Maximum Clock Frequency: 40 kHz
- 32-Byte Page Write Mode
- Self-timed write cycle
- Available in 8-pin PDIP, SOIC and TSSOP packages
- More than 1 million erase/write cycles
- Data retention > 100 years
- Qualified for Automotive Applications
- Factory Programming Available
- Operating Temperature: -55°C to 125°C.
- Storage Temperature: -65°C to 150°C.
Applications
- Audio devices
- Data logging
- Remote storage devices
- Data analytics
- Storage devices
- Used where Flash memory of MCU is less
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