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LAN8741Ai-EN データシート(PDF) 85 Page - Microchip Technology

部品番号 LAN8741Ai-EN
部品情報  Small Footprint MII/RMII 10/100 Energy Efficient Ethernet Transceiver with HP Auto-MDIX and flexPWR짰 Technology
PDF  106 Pages
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メーカー  MICROCHIP [Microchip Technology]
ホームページ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN8741Ai-EN データシート(HTML) 85 Page - Microchip Technology

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2013-2015 Microchip Technology Inc.
DS00001988A-page 85
LAN8741A/LAN8741Ai
5.5
DC Specifications
Table 5-4 details the non-variable I/O buffer characteristics. These buffer types do not support variable voltage opera-
tion. Table 5-5 details the variable voltage I/O buffer characteristics. Typical values are provided for 1.8 V, 2.5 V, and 3.3
V VDDIO cases.
Note 1: This specification applies to all inputs and tri-stated bi-directional pins. Internal pull-down and pull-up resis-
tors add ±50 µA per-pin (typical).
2: XTAL1/CLKIN can optionally be driven from a 25 MHz single-ended clock oscillator.
TABLE 5-4:
NON-VARIABLE I/O BUFFER CHARACTERISTICS
Parameter
Symbol
Min.
Typ.
Max.
Unit
Note
IS Type Input Buffer
Low Input Level
High Input Level
Negative-Going Threshold
Positive-Going Threshold
Schmitt Trigger Hysteresis
(VIHT - VILT)
Input Leakage
(VIN = VSS or VDDIO)
Input Capacitance
VILI
VIHI
VILT
VIHT
VHYS
IIH
CIN
-0.3
1.01
1.39
336
-10
1.19
1.59
399
3.6
1.39
1.79
459
10
2
V
V
V
V
mV
µA
pF
Schmitt trigger
Schmitt trigger
(see Note 1)
O12 Type Buffers
Low Output Level
High Output Level
VOL
VOH
VDD2A - 0.4
0.4
V
V
IOL = 12 mA
IOH = -12 mA
ICLK Type Buffer
(XTAL1 Input)
Low Input Level
High Input Level
VILI
VIHI
-0.3
VDDCR-0.35
0.35
3.6
V
V
(see Note 2)



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