Rainbow Electronics MAX13175E - Manual (Page 16)

MAX13171E/MAX13173E/MAX13175E
Multiprotocol, Pin-Selectable
Data Interface Chipset
16 ______________________________________________________________________________________
MAX13171E Pin Description
PIN NAME FUNCTION
1, 2, 6, 30, 31 N.C. No Connection. Not internally connected.
3, 16 V CC
Device Supply Voltage. Bypass V
CC
with a 4.7µF capacitor to ground as close as possible to
pin 3.
4 T1IN Transmitter 1 Logic Input
5 T2IN Transmitter 2 Logic Input
7 T3IN Transmitter 3 Logic Input
8 R1OUT Receiver 1 Logic Output with Internal Pullup to V L
9 R2OUT Receiver 2 Logic Output with Internal Pullup to V L
10 R3OUT Receiver 3 Logic Output with Internal Pullup to V L
11 M0 Mode-Select 0 Input with Internal Pullup to V L
12 V L
Logic-Supply Reference Input. V L determines the voltage level of the logic interface. Bypass V L
with a 0.1µF capacitor to ground as close as possible to the device.
13 M1 Mode-Select 1 Input with Internal Pullup to V L
14 M2 Mode-Select 2 Input with Internal Pullup to V L
15 DCE/DTE DCE/DTE Mode-Select Input with Internal Pullup to V L
17 R3INB Receiver 3 Noninverting Input
18 R3INA Receiver 3 Inverting Input
19, 24, 29, 35 GND Ground
20 R2INB Receiver 2 Noninverting Input
21 R2INA Receiver 2 Inverting Input
22 T3OUTB/R1INB Transmitter 3 Noninverting Output/Receiver 1 Noninverting Input
23 T3OUTA/R1INA Transmitter 3 Inverting Output/Receiver 1 Inverting Input
25 T2OUTB Transmitter 2 Noninverting Output
26 T2OUTA Transmitter 2 Inverting Output
27 T1OUTB Transmitter 1 Noninverting Output
28 T1OUTA Transmitter 1 Inverting Output
32 V EE
Charge-Pump Negative Supply Output. Connect a 4.7µF ceramic capacitor from V
EE
to ground
as close as possible to the device.
33 C2-
V
EE
Charge-Pump Flying-Capacitor Negative Terminal. Connect a 1µF ceramic capacitor
between C2+ and C2-.
34 C2+
V EE Charge-Pump Flying-Capacitor Positive Terminal. Connect a 1µF ceramic capacitor
between C2+ and C2-.
36 C1-
V DD Charge-Pump Flying-Capacitor Negative Terminal. Connect a 1µF ceramic capacitor
between C1+ and C1-.
37 C1+
V DD Charge-Pump Flying-Capacitor Positive Terminal. Connect a 1µF ceramic capacitor
between C1+ and C1-.
38 V DD
Charge-Pump Positive-Supply Output. Connect a 4.7µF ceramic capacitor from V DD to ground
as close as possible to the device.
— EP
Exposed Pad. Internally connected to V EE . Connect to a large V EE plane to maximize thermal
performance. Not intended as an electrical connection point. Do not share the same plane as
the MAX13173E.