M24M01-HRMN6TP STMicroelectronics, M24M01-HRMN6TP Datasheet - Page 19

• Manufacturer Part Number: M24M01-HRMN6TP
• Description: IC EEPROM 1MBIT 1MHZ 8SOIC
• Manufacturer: STMicroelectronics

Specifications of M24M01-HRMN6TP

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 1M (128K x 8)
• Speed: 1MHz
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

M24M01-R, M24M01-W, M24M01-HR
3.11
3.12
3.13
3.14
3.15
Read operations
Read operations are performed independently of the state of the Write Control (WC) signal.
After the successful completion of a Read operation, the device’s internal address counter is
incremented by one, to point to the next byte address.
Random Address Read
A dummy Write is first performed to load the address into this address counter (as shown in
Figure
condition, and repeats the device select code, with the RW bit set to 1. The device
acknowledges this, and outputs the contents of the addressed byte. The bus master must
not acknowledge the byte, and terminates the transfer with a Stop condition.
Current Address Read
For the Current Address Read operation, following a Start condition, the bus master only
sends a device select code with the R/W bit set to 1. The device acknowledges this, and
outputs the byte addressed by the internal address counter. The counter is then
incremented. The bus master terminates the transfer with a Stop condition, as shown in
Figure
Sequential Read
This operation can be used after a Current Address Read or a Random Address Read. The
bus master does acknowledge the data byte output, and sends additional clock pulses so
that the device continues to output the next byte in sequence. To terminate the stream of
bytes, the bus master must not acknowledge the last byte, and must generate a Stop
condition, as shown in
The output data comes from consecutive addresses, with the internal address counter
automatically incremented after each byte output. After the last memory address, the
address counter ‘rolls-over’, and the device continues to output data from memory address
00h.
Acknowledge in Read mode
For all Read instructions, the device waits, after each byte read, for an acknowledgment
during the 9
time, the device terminates the data transfer and switches to its Standby mode.
11) but without sending a Stop condition. Then, the bus master sends another Start
11, without acknowledging the byte.
th
bit time. If the bus master does not drive Serial Data (SDA) low during this
Figure
11.
Doc ID 12943 Rev 7
Device operation
19/37