lan8187 Standard Microsystems Corp., lan8187 Datasheet - Page 64

• Manufacturer Part Number: lan8187
• Description: Lan8187/lan8187i ?15kv Esd Protected Mii/rmii 10/100 Ethernet Transceiver With Hp Auto-mdix & Flexpwr Technology
• Manufacturer: Standard Microsystems Corp.

Revision 1.5 (01-10-08)
7.1.1.2
7.1.2
VDD33
INPUT VOLTAGE ON
DIGITAL PINS
VOLTAGE ON ANALOG
I/O PINS (RXP, RXN)
AMBIENT
TEMPERATURE
PARAMETER
EN61000-4-2 Performance
The EN61000-4-2 ESD specification is an international standard that addresses system-level immunity
to ESD strikes while the end equipment is operational. In contrast, the HBM ESD tests are performed
at the device level with the device powered down.
In addition to defining the ESD tests, EN61000-4-2 also categorizes the impact to equipment operation
when the strike occurs (ESD Result Classification). The LAN8187 maintains an ESD Result
Classification 1 or 2 when subjected to an EN61000-4-2 (level 4) ESD strike.
Both air discharge and contact discharge test techniques for applying stress conditions are defined by
the EN61000-4-2 ESD document.
AIR DISCHARGE
To perform this test, a charged electrode is moved close to the system being tested until a spark is
generated. All pins of the LAN8187 can safely dissipate +/- 15kV air discharges per the EN61000-4-2
specification without additional board level protection. This test is difficult to reproduce because the
discharge is influenced by such factors as humidity, the speed of approach of the electrode, and
construction of the test equipment.
CONTACT DISCHARGE
The uncharged electrode first contacts the pin to prepare this test, and then the probe tip is energized.
This yields more repeatable results, and is the preferred test method. All pins of the LAN8187 can
safely dissipate +/- 8kV contact discharges per the EN61000-4-2 specification without the need for
additional board level protection.
Operating Conditions
VDD33 to VSS
T
T
AEZG
Table 7.3 Recommended Operating Conditions
A
A
CONDITIONS
LAN8187-JT
LAN8187I-
±15kV ESD Protected MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX & flexPWR
DATASHEET
3.0
0.0
0.0
0
-40
MIN
64
3.3
TYP
3.6
VDDI
O
+3.6
V
70
+85
MAX
V
V
V
C
C
UNITS
For Commercial
Temperature
For Industrial Temperature
SMSC LAN8187/LAN8187i
COMMENT
TM
Datasheet
Technology