HC4P5524-5 View Datasheet(PDF) - Harris Semiconductor
Part Name
Description
MFG CO.
'HC4P5524-5' PDF : 12 Pages View PDF
SEMICONDUCTOR
HC-5524
June 1996
SLIC
Subscriber Line Interface Circuit
Features
• DI Monolithic High Voltage Process
• Compatible with Worldwide PBX and DLC Performance
Requirements
• Controlled Supply of Battery Feed Current with
Programmable Current Limit
• Operates with 5V Positive Supply (VB+)
• Internal Ring Relay Driver and a Utility Relay Driver
• High Impedance Mode for Subscriber Loop
• High Temperature Alarm Output
• Low Power Consumption During Standby Functions
• Switch Hook, Ground Key, and Ring Trip Detection
• Selective Power Denial to Subscriber
• Voice Path Active During Power Denial
• On-Chip Op Amp for 2-Wire Impedance Matching
Applications
• Solid State Line Interface Circuit for PBX or Digital Loop
Carrier Systems
• Hotel/Motel Switching Systems
• Direct Inward Dialing (DID) Trunks
• Voice Messaging PBXs
• 2-Wire/4-Wire, 4-Wire/2-Wire Hybrid
Ordering Information
PART NUMBER
HC3-5524-5
HC3-5524-9
HC4P5524-5
HC4P5524-9
HC9P5524-5
HC9P5524-9
TEMP.
RANGE (oC)
PACKAGE
0 to 75 28 Ld PDIP
-40 to 85 28 Ld PDIP
0 to 75 44 Ld PLCC
-40 to 85 44 Ld PLCC
0 to 75 28 Ld SOIC
-40 to 85 28 Ld SOIC
PKG.
NO.
E28.6
E28.6
N44.65
N44.65
M28.3
M28.3
Description
The HC-5524 telephone Subscriber Line Interface Circuit
integrates most of the BORSCHT functions on a monolithic
IC. The device is manufactured in a Dielectric Isolation (DI)
process and is designed for use as a 24V interface between
the traditional telephone subscriber pair (Tip and Ring) and
the low voltage filtering and coding/decoding functions of the
line card. Together with a secondary protection diode bridge,
the device will withstand 500V induced surges, in plastic
packages. The SLIC also maintains specified transmission
performance in the presence of externally induced
longitudinal currents. The BORSCHT functions that the SLIC
provides are:
• Battery Feed with Subscriber Loop Current Limiting
• Overvoltage Protection
• Ring Relay Driver
• Supervisory Signaling Functions
• Hybrid Functions (with External Op-Amp)
• Test (or Battery Reversal) Relay Driver
In addition, the SLIC provides selective denial of power to
subscriber loops, a programmable subscriber loop current
limit from 20mA to 60mA, a thermal shutdown with an alarm
output and line fault protection. Switch hook detection, ring
trip detection and ground key detection functions are also
incorporated in the SLIC device.
The HC-5524 SLIC is ideally suited for line card designs in
PBX and DLC systems, replacing traditional transformer
solutions.
Pinouts
HC-5524 (PDIP, SOIC)
TOP VIEW
AG 1
VB+ 2
C1 3
F1 4
F0 5
RS 6
SHD 7
GKD 8
TST 9
ALM 10
ILMT 11
OUT 1 12
-IN 1 13
TIP 14
28 BG
27 VB-
26 RF
25 TF
24 VFB
23 RD
22 DG
21 PR
20 PRI
19 VTX
18 C2
17 VRX
16 RFS
15 RING
TRUTH TABLE
F1 F0
Action
0
0 Normal Loop Feed
0
1 RD Active
1
0 Power Down Latch
RESET
1
0 Power on RESET
1
1 Loop Power
Denial Active
HC-5524 (PLCC)
TOP VIEW
N/C
F1
F0
RS
SHD
GKD
TST
N/C
N/C
N/C
ALM
6 5 4 3 2 1 44 43 42 41 40
7
39
8
38
9
37
10
36
11
35
12
34
13
33
14
32
15
31
16
30
17
29
18 19 20 21 22 23 24 25 26 27 28
TF1
TF2
VFB
RD
DG
PR
PRI
VTX
C2
N/C
N/C
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © Harris Corporation 1996
1
File Number 2798.3
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