SP504EB Datasheet, PDF (7/18 Pages) Sipex Corporation – Evaluation Board Manual

SP504 Pin Assignments (cont)
Pin # Pin Name
Pin Function
Pin Description
2
RDEC0
3
RDEC1
4
RDEC2
5
RDEC3
6
TTEN
7
SCTEN
9
TDEC3
10
TDEC2
11
TDEC1
12
TDEC0
Control Registers
TTL Input
Receiver mode select line.
TTL Input
Receiver mode select line.
TTL Input
Receiver mode select line.
TTL Input
Receiver mode select line.
TTL Input
Enable control TT driver (active low).
TTL Input
Enable control SCT receiver (active high).
TTL Input
Driver mode select line.
TTL Input
Driver mode select line.
TTL Input
Driver mode select line.
TTL Input
Driver mode select line.
Power Supplies
Pins 25, 33, 41 48, 55, 62, 73, 74 connect to Vcc +5 volts.
Pins 29, 34, 43, 46, 50, 53, 57, 60, 64, 72, 75 connect to ground.
Pin 27 is Vdd +10 volts. Connect 22uF 16 volt capacitor between pin 27 and Vcc.
Pin 32 is Vss -10 volts. Connect 22uF 16 volt capacitor between pin 32 and ground.
Pins 26 & 30 are C1+ & C1-. Connect 22uF 16 volt capacitor between pin26 & pin 30.
Pins 28 & 31 are C2+ & C2-. Connect 22uF 16 volt capacitor between pin28 & pin 31.
Note: NC pins should be left floating as internal signals may be present.
Ensure all Vcc and ground connections are made before operating device.
504/505AppNote/03
New SP504/505 Evaluation Board
7
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