SP504 Sipex, SP504 Datasheet - Page 12

• Manufacturer Part Number: SP504
• Description: WAN Multi-Mode Serial Transceiver
• Manufacturer: Sipex

Pin 40 — IC(b)— Incoming Call; analog
input,non-inverted; source for RI.
Pin 45 — RL(b) — Remote Loopback; analog
output, non-inverted; sourced from RL.
Pin 47 — RL(a) — Remote Loopback; analog
output inverted; sourced from RL.
Pin 49— LL(b) — Local Loopback; analog
output, non-inverted; sourced from LL.
Pin 51 — LL(a) — Local Loopback; analog
output, inverted; sourced from LL.
Pin 52 — RS(b) — Ready To Send; analog
output, non-inverted; sourced from RTS.
Pin 54 — RS(a) — Ready To Send; analog
output, inverted; sourced from RTS.
Pin 56 — TR(b) — Terminal Ready; analog
output, non-inverted; sourced from DTR.
Pin 58 — TR(a) — Terminal Ready; analog
output, inverted; sourced from DTR.
Pin 66 — CS(a)— Clear To Send; analog input,
inverted; source for CTS.
Pin 67 — CS(b)— Clear To Send; analog input,
non-inverted; source for CTS.
Pin 68 — DM(a)— Data Mode; analog input,
inverted; source for DSR.
Pin 69 — DM(b)— Data Mode; analog input,
non-inverted; source for DSR
Pin 78 — DSR— Data Set Ready; TTL output;
sourced from DM(a), DM(b) inputs.
Pin 80 — CTS— Clear To Send; TTL output;
sourced from CS(a) and CS(b) inputs.
CONTROL REGISTERS
Pins 2–5 — RDEC
decode register; configures receiver modes; TTL
inputs.
Pin 6 — TTEN — Enables TT driver, active
low; TTL input.
Pin 7 — SCTEN — Enables SCT receiver;
active high; TTL input.
Rev: A Date:1/27/04
0
– RDEC
3
— Receiver
SP504 Multi–Mode Serial Transceivers
12
Pins 12–9 — TDEC
decode register; configures transmitter modes;
TTL inputs.
Pin 23 — STEN — Enables ST driver; active
low; TTL input.
POWER SUPPLIES
Pins 25, 33, 41, 48, 55, 62, 73, 74 — V
input.
Pins 29, 34, 43, 46, 50, 53, 57, 60, 64, 72, 75 —
GND — Ground.
Pin 27 — V
Connects from V
tor size is 22µF, 16V.
Pin 32 — V
Connects from ground to V
pacitor size is 22µF, 16V.
Pins 26 and 30 — C
Capacitor — Connects from C
gested capacitor size is 22µF, 16V.
Pins 28 and 31 — C
Capacitor — Connects from C
gested capacitor size is 22µF, 16V.
NOTE: NC pins should be left floating; internal
signals may be present.
DD
SS
–10V Charge Pump Capacitor —
+10V Charge Pump Capacitor —
DD
1
2
to V
+
+
0
and C
and C
– TDEC
© Copyright 2004 Sipex Corporation
CC
. Suggested capaci-
1
2
SS
–
–
— Charge Pump
— Charge Pump
3
. Suggested ca-
1
2
— Transmitter
+
+
to C
to C
CC
1
2
–
–
— +5V
. Sug-
. Sug-