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78Q2123S/F

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P38
78Q2123/78Q2133 Data Sheet DS_21x3_001
34 Rev. 1.6
XTLP
T
clkper
Tclkhi
Tr
T
f
Figure 8: External XTLP Oscillator Characteristics
4.9.1 External XTLP Oscillator Characteristics
Parameter Symbol Condition Min Nom Max Unit
XTLP Input Level See specification for
CIS-type input
XTLN Input Low
Voltage
0.8 V
XTLP Frequency f See Note 1 25.000 MHz
XTLP Period Tclkper See Note 1 40 ns
XTLP Duty Cycle Tclkhi / Tclkper 40 60 %
Rise / Fall Time Tr, Tf 4.0 ns
Absolute Jitter Input signaling
requirements = CIS
0.1 ns
Note 1: IEEE 802.3 frequency tolerance ±50 ppm.
DS_21x3_001 78Q2123/78Q2133 Data Sheet
Rev. 1.6 35
5 Package Pin Designations
(Top View)
6
7
8
9
5
4
3
2
1
17
18
19
20
24
23
22
21
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
MDIO
MDC
LED1
LED0
RXD3
RXD2
RXD1
RXD0
XTLP
RST
CRS
COL
TXD3
TXD2
TXD1
TXD0
PWR
GND
RX_DV
RX_CLK
RX_ER
TX_ER
TX_CLK
TX_EN
TERIDIAN
78Q2123
78Q2133
XTLN
INTR
TXON
TXOP
GND
RXIP
RXIN
PWR
Note: For information only, actual package outline will vary depending on package type.
Figure 9: Package Pin Designations
78Q2123/78Q2133 Data Sheet DS_21x3_001
36 Rev. 1.6
6 32-Pin QFN Mechanical Specifications
Dimensions in mm.
2.5
5
2.5
5
TOP VIEW
1
2
3
0.2 MIN.
0.35 / 0.45
1.5 / 1.6
3.0 / 3.2
0.18 / 0.3
BOTTOM VIEW
1
2
3
0.5
0.5
3.0 / 3.2
1.5 / 1.6
0.35 / 0.45
CHAMFERED
0.30
Figure 10: 32-Pin QFN Mechanical Specifications
0.85 NOM.
/
0.9MAX.
0.00 / 0.005
0.20 REF.
SEATING
PLANE
SIDE VIEW
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P38

78Q2123S/F

Mfr. #:
Buy 78Q2123S/F
Manufacturer:
Maxim Integrated
Description:
Ethernet ICs 10/100 Base Tx Transcvr w/MDIX
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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