Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsIntegrated Circuits (ICs)TSOC 6 20 kBit 256 x 80

DS28EC20: 20Kb 1-Wire EEPROM

14 of 27

Figure 7-3. Memory Function Flowchart (continued)

From Figure 7,

2

nd

Part

To Figure 7,

2

nd

Part

To Figure 7,

4

th

Part

From Figure 7,

4

th

Part

* 1-Wire idle high for t

PROG

for power

55h

Copy Scratch-

Pad ?

Bus Master TX

TA1 (T[7:0]), TA2 (T[15:8])

and E/S Byte

Y

N

Bus Master

RX “1”s

Master

TX Reset ?

Y

N

Y

Auth. Code

Match ?

N

DS28EC20 copies Scratch-

pad Data to Address

AA = 1

*

DS28EC20 TX “0”

Master

TX Reset ?

Master

TX Reset ?

Y

N

DS28EC20 TX “1”

N

Y

N

Copy-

Protected ?

Y

Y

N

PF = 0?

Y

N

BS = 0?