SP504MCF-L Exar Corporation, SP504MCF-L Datasheet - Page 13

• Manufacturer Part Number: SP504MCF-L
• Description: IC, WAN MULTIMODE SERIAL TXRX, MQFP-80
• Manufacturer: Exar Corporation

Specifications of SP504MCF-L

• Device Type: Transceiver
• No. Of Drivers: 7
• Supply Voltage Range: 4.75V To 5.25V
• Driver Case Style: MQFP
• No. Of Pins: 80
• Operating Temperature Range: 0°C To +70°C
• Termination Type: SMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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.
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com
0
– RDEC
3
— Receiver
3
Pins 2–9 — TDEC
ter decode register; configures transmitter
modes; TTL inputs.
Pin 23 — STEN — Enables ST driver; active
low; TTL input.
POWER SUPPLIES
Pins 25, 33, 4, 48, 55, 62, 73, 74 — V
— +5V input.
Pins 29, 34, 43, 46, 50, 53, 57, 60, 64, 72,
75 — GND — Ground.
Pin 27 — V
— Connects from V
capacitor size is 22µF, 6V.
Pin 32 — V
— Connects from ground to V
capacitor size is 22µF, 6V.
Pins 26 and 30 — C
Pump Capacitor — Connects from C
Suggested capacitor size is 22µF, 6V.
Pins 28 and 3 — C
Pump Capacitor — Connects from C
Suggested capacitor size is 22µF, 6V.
NOTE: NC pins should be left floating; in-
ternal signals may be present.
DD
SS
–0V Charge Pump Capacitor
+0V Charge Pump Capacitor
0
DD

2
– TDEC
+
+
and C
and C
to V
CC
SS
3

2
. Suggested
SP504_02_2708
–
–
— Transmit-
. Suggested
— Charge
— Charge

2
+
+
to C
to C

2
CC
–
–
.
.