DS28EC20 Maxim, DS28EC20 Datasheet - Page 15

• Manufacturer Part Number: DS28EC20
• Description: The DS28EC20 is a 20480-bit, 1-Wire® EEPROM organized as 80 memory pages of 256 bits each
• Manufacturer: Maxim

Figure 7-4. Memory Function Flowchart (continued)
From Figure 7,
DS28EC20
To Figure 7,
Decision
made by
3
Bus Master
3
rd
rd
RX “1”s
DS28EC20
Increments
Part
Address
Counter
Part
Y
N
DS28EC20 sets Memory
Address = (T[15:0])
Memory Address
Read Memory ?
Bus Master RX
Data Byte from
Bus Master TX
TA2 (T[15:8])
TA1 (T[7:0]),
TX Reset?
TX Reset?
< 0A3Fh?
Address
Master
Master
BS = 1
F0h
N
N
Y
Y
Y
N
Decision
made by
Master RX
Master
FFh Byte
15 of 27
N
(1
DS28EC20 sets Memory
Y
Command, Address, Data
Master RX Byte from
st
(Subsequent Passes)
Master RX CRC16 of
Address = (T[15:0])
Memory Address
Pass); CRC16 of Data
Extended Read
Bus Master TX
TA2 (T[15:8])
TA1 (T[7:0]),
Master TX
CRC OK?
Master TX
Memory?
Address
<0A40h
Reset?
BS = 1
End of
Page?
Reset
A5h
N
Y
N
Y
Y
Y
N
DS28EC20: 20Kb 1-Wire EEPROM
N
DS28EC20
Increments
Address
Counter
N
Bus Master
TX Reset ?
RX “1”s
Master
Y