M34D64-WMN6P STMicroelectronics, M34D64-WMN6P Datasheet - Page 16
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M34D64-WMN6P
Manufacturer Part Number
M34D64-WMN6P
Description
IC EEPROM 64KBIT 400KHZ 8SOIC
Manufacturer
STMicroelectronics
Datasheet
1.M34D64-WMN6TP.pdf
(27 pages)
Specifications of M34D64-WMN6P
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Memory Size
64K (8K x 8)
Speed
400kHz
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.5 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
Other names
497-8588-5
M34D64-WMN6P
M34D64-WMN6P
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Device operation
3.9
16/27
Figure 8.
Minimizing system delays by polling on ACK
During the internal Write cycle, the device disconnects itself from the bus, and writes a copy
of the data from its internal latches to the memory cells. The maximum Write time (t
shown in
polling sequence can be used by the bus master.
The sequence, as shown in
●
●
●
First byte of instruction
with RW = 0 already
decoded by the device
Initial condition: a Write cycle is in progress.
Step 1: the bus master issues a Start condition followed by a Device Select Code (the
first byte of the new instruction).
Step 2: if the device is busy with the internal Write cycle, no Ack will be returned and
the bus master goes back to Step 1. If the device has terminated the internal Write
cycle, it responds with an Ack, indicating that the device is ready to receive the second
part of the instruction (the first byte of this instruction having been sent during Step 1).
Table 11.: AC
Write cycle polling flowchart using ACK
ReStart
Stop
NO
characteristics, but the typical time is shorter. To make use of this, a
Figure 8.: Write cycle polling flowchart using
NO
Start condition
Device select
addressing the
with RW = 0
in progress
operation is
Write cycle
returned
memory
ACK
Next
YES
Write operation
Write operation
Continue the
Data for the
YES
NO
and receive ACK
Send address
condition
Start
Random Read operation
Device select
Continue the
with RW = 1
YES
ACK, is:
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