SI3453C-B01-GM Silicon Laboratories Inc, SI3453C-B01-GM Datasheet - Page 9

• Manufacturer Part Number: SI3453C-B01-GM
• Description: IC POE CONTROLLER MIDSPAN 40QFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI3453C-B01-GM

• Package / Case: 40-QFN
• Controller Type: Power over Ethernet Controller (POE)
• Interface: I²C
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 14mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Maximum Power Dissipation: 1.2 W
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Product: Ethernet Controllers
• Standard Supported: IEEE 802.3at, IEEE 802.3af
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Supply Current (max): 14 mA
• Maximum Operating Temperature: + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 336-1840-5

Table 11. SMBus (I
Serial bus clock frequency
SCL high time
SCL low time
SCL, SDA rise time
SCL, SDA fall time
Bus free time
Start hold time
Start setup time
Stop setup time
Data hold time
Data setup time
Time from hardware or soft-
ware reset until start of I
traffic.
Notes:
1. Not production tested (guaranteed by design).
2. All timing references measured at V
3. The Si3452/3 will stretch (pull down on) SCK during the ACK time period if required. The maximum SCL stretching is
10 µsec; so, SCL only needs to be bidirectional for I
Description
SDA
SCL
t
BU F
2
Start Bit
C) Timing Specifications (see Figure 1)
2
t
C
ST H
f
SC L
Symbol
t
t
t
RESET
R_SCL
F_SCL
t
t
t
t
f
t
t
SKH
t
t
SCL
SKL
BUF
STH
STS
SPS
DH
DS
D7
IL
Figure 1. I
and V
t
R_SCL
Between START and first low SCL.
Between SCL high and START
IH
Between SCL high and STOP
D 6
Between START and STOP
.
Reset to start condition
t
2
DS
Rev. 0.42
C Timing Diagram
Test Conditions
2
C bus speeds over 50 kHz.
conditions.
condition.
condition.
D5
t
F_SC L
D 4
t
D H
t
SKH
D 3
TBD
Min
600
600
600
600
150
200
1.3
1.3
20
20
0
D0
Typ
—
—
—
—
—
—
—
—
—
—
—
—
t
Si3452/3
SKL
Max
400
300
150
—
—
—
—
—
—
—
—
—
t
Stop Bit
SPS
Unit
kHz
ms
ns
μs
ns
ns
μs
ns
ns
ns
ns
ns
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