®
HC-5504DLC
SLIC
Subscriber Line Interface Circuit
May 1997
Features
Description
The Intersil SLIC incorporates many of the BORSHT functions
on a single IC chip. This includes DC battery feed, a ring relay
driver, supervisory and hybrid functions. This device is
designed to maintain transmission performance in the pres-
ence of externally induced longitudinal currents. Using the
unique Intersil dielectric isolation process, the SLIC can oper-
ate directly with a wide range of station battery voltages.
• Pin for Pin Replacement for the HC-5504
• Capable of +5V or +12V (VB+) Operation
• Monolithic Integrated Device
• DI High Voltage Process
• Compatible With Worldwide PBX Performance
Requirements
The SLIC also provides selective denial of power. If the PBX
system becomes overloaded during an emergency, the SLIC
will provide system protection by denying power to selected
subscriber loops.
• Controlled Supply of Battery Feed Current for Short
Loops (41mA)
• Internal Ring Relay Driver
The Intersil SLIC is ideally suited for the design of new digital
PBX systems by eliminating bulky hybrid transformers.
• Allows Interfacing With Negative Superimposed Ring-
ing Systems
• Low Power Consumption During Standby
• Switch Hook Ground Key and Ring Trip Detection
Functions
Ordering Information
PART
NUMBER
TEMPERATURE
RANGE
• Selective Denial of Power to Subscriber Loops
PACKAGE
24 Lead Ceramic DIP
24 Lead Ceramic DIP
24 Lead Plastic DIP
24 Lead Plastic DIP
28 Lead PLCC
HC1-5504DLC-5
HC1-5504DLC-9
HC3-5504DLC-5
HC3-5504DLC-9
HC4P5504DLC-5
HC4P5504DLC-9
HC9P5504DLC-5
HC9P5504DLC-9
0o to +75oC
-40o to +85oC
0o to +75oC
-40o to +85oC
0o to +75oC
-40o to +85oC
0o to +75oC
-40o to +85oC
Applications
• Solid State Line Interface Circuit for Analog and Digi-
tal PBX Systems
• Direct Inward Dial (DID) Trunks
• Voice Messaging PBXs
28 Lead PLCC
• Allows Multi-Phone Operation
24 Lead SOIC
24 Lead SOIC
Pinouts
HC-5504DLC (PDIP, CDIP, SOIC)
HC-5504DLC (PLCC)
TOP VIEW
TOP VIEW
TIP
1
2
24 TX
23 AG
22 C4
RING
4
3
2
1
28 27 26
RFS
VB+
C3
3
VB+
RX
25
24
5
21
20
19
4
RX
+IN
+IN
5
C3
6
7
8
9
DG
RS
RD
TF
6
-IN
DG
23 -IN
18 OUT
17 C2
7
N/C
RS
22 N/C
8
OUT
21
16 RC
15 PD
9
C2
20
RD 10
RF
10
11
12
TF
11
RC
19
14 GKD
13 SHD
VB-
BG
12 13 14 15 16 17 18
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
File Number 2443.3
Copyright © Intersil Americas Inc. 2002. All Rights Reserved
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