DS1864T+ Maxim Integrated Products, DS1864T+ Datasheet - Page 71

• Manufacturer Part Number: DS1864T+
• Description: IC LASER CTRLR 1CHAN 5.5V 28TQFN
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Controller (Fiber Optic)r

Specifications of DS1864T+

• Number Of Channels: 1
• Voltage - Supply: 2.97 V ~ 5.5 V
• Current - Supply: 3mA
• Operating Temperature: -40°C ~ 95°C
• Package / Case: 28-WFQFN Exposed Pad
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 20. I
COMMUNICATIONS KEY
WRITE UP TO A 8-BYTE PAGE WITH A SINGLE TRANSACTION I
WRITE A SINGLE BYTE TO 2-WIRE ADDRESS A0h
READ A SINGLE BYTE WITH A DUMMY WRITE CYCLE TO SET THE ADDRESS COUNTER FROM I
READ MULTIPLE BYTES WITH A DUMMY WRITE CYCLE TO SET THE ADDRESS COUNTER FROM I
SR
S
S
S
P
S
S
1 0 1
1 0 1
1 0 1
1 0 1
START
STOP
REPEATED
START
2
C Communications Examples
0
0
0
0
A
N
0
0
0
0
DATA
0
0
0
X X X X X X X X
0
NOT
ACK
ACK
0 0
1 0
0 0
1 0
A
A
A
A
A
SHADED BOXES INDICATE THE SLAVE IS
CONTROLLING SDA
WHITE BOXES INDICATE THE MASTER IS
CONTROLLING SDA
MEMORY ADDRESS
MEMORY ADDRESS
MEMORY ADDRESS
MEMORY ADDRESS
____________________________________________________________________
2
8-BITS ADDRESS OR DATA
C ADDRESS A2h
DATA
A
A
A
A
SFP Laser Controller and
SR
SR
1 0 1
1 0 1
2
C ADDRESS A0h
2
C ADDRESS A2h
DATA
DATA
A
0
0
0
0
0
0
DATA
0 1
1 1
NOTE:
ALL BYTES ARE SENT MOST SIGNIFICANT BIT FIRST.
THE FIRST BYTE SENT AFTER A START CONDITION IS
ALWAYS THE SLAVE ADDRESS FOLLOWED BY THE
READ/WRITE BIT.
A
A
P
A
A
Diagnostic IC
N
DATA
DATA
P
DATA
N
A
A
P
P
71