M24C32 32K串行I²C总线的EEPROM
The M24C32, M24C64 and M24128 devices are I²C-compatible electrically erasable programmable memories (EEPROM). They are organized as 4096 × 8 bits, 8192 × 8 bits and 16384 × 8 bits, respectively.
I²C uses a two-wire serial interface, comprising a bidirectional data line and a clock line. The devices carry a built-in 4-bit Device Type Identifier code (1010) in accordance with the I²C bus definition.
The device behaves as a slave in the I²C protocol, with all memory operations synchronized by the serial clock. Read and Write operations are initiated by a Start condition, generated by the bus master. The Start condition is followed by a device select code and Read/Write bit (RW) (as described in Table 3), terminated by an acknowledge bit.
When writing data to the memory, the device inserts an acknowledge bit during the 9th bit time, following the bus master’s 8-bit transmission. When data is read by the bus master, the bus master acknowledges the receipt of the data byte in the same way. Data transfers are terminated by a Stop condition after an Ack for Write, and after a NoAck for Read.
| Reference | Generic Part Number | Supply voltage |
| M24128 | M24128-BW | 2.5 V to 5.5V |
| M24128-BR | 1.8 V to 5.5V | |
| M24128-BF | 1.7 V to 5.5V | |
| M24C64 | M24C64-W | 2.5 V to 5.5V |
| M24C64-R | 1.8 V to 5.5V | |
| M24C64-F | 1.7 V to 5.5V | |
| M24C32 | M24C32-W | 2.5 V to 5.5V |
| M24C32-R | 1.8 V to 5.5V | |
| M24C32-F | 1.7 V to 5.5V |
M24C32 型号
| Generic Part Number |
Storage Capacity |
Serial Interface |
Marketing Status |
Automotive Grade |
Supply Voltage(Vcc) |
Supply Voltage(Vcc) |
Clock Frequency(fSCL) |
Package |
| spec | min | max | max | |||||
| kB | V | V | MHz | |||||
| M24C32-F | 32 | I²C | Active | - | 1.7 | 5.5 | 0.4 | UFDFPN 2x3x0.6 8L 0.5MM PITCH |
| M24C32-R | 32 | I²C | Active | - | 1.8 | 5.5 | 0.4 | SO8; TSSOP8; UFDFPN 2x3x0.6 8L 0.5MM PITCH |
| M24C32-W | 32 | I²C | Active | Yes | 2.5 | 5.5 | 0.4 | PDIP8; SO8; TSSOP8 |
| M95320 | 32 | SPI | Active | Yes | 4.5 | 5.5 | 5 | SO8 |
| M95320-R | 32 | SPI | Active | - | 1.8 | 5.5 | 5 | SO8; TSSOP8; UFDFPN 2x3x0.6 8L 0.5MM PITCH |
| M95320-W | 32 | SPI | Active | Yes | 2.5 | 5.5 | 5 | SO8; TSSOP8 |
M24C32 特性:
- Supports the I²C bus 100 kHz Standard-mode and 400 kHz Fast-mode
- Single supply voltages (see Table 1 for root
part numbers):
– 2.5 V to 5.5 V
– 1.8 V to 5.5 V
– 1.7 V to 5.5 V - Write Control input
- Byte and Page Write
- Random and Sequential Read modes
- Self-timed programming cycle
- Automatic address incrementing
- Enhanced ESD/latch-up protection
- More than 1 Million write cycles
- More than 40-year data retention
- Packages
– ECOPACK? (RoHS compliant)
M24C3 技术支持与电子电路设计开发资源下载
- M24C32 数据手册DataSheet下载.PDF
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