CS212 Datasheet, PDF (1/8 Pages) Cherry Semiconductor Corporation – Security Detector Serial-Addressable Receiver/Transmitter

CS212
Security Detector
Serial-Addressable Receiver/Transmitter
Description
Features
The S-ART is a 16 pin circuit
designed for data transmission on a
two-lead cable. The circuit is spe-
cially developed for alarm systems
where it is desired to identify each
detector individually. There can be
up to 30 S-ART circuits/detectors
on the same 2-lead cable. This cable
transmits both DC supply to the
S-ART and information to/from the
S-ART.
The S-ART works on the principle
by which an address is sent on the
line cable and the S-ART which rec-
ognizes the address then carries out
the order which can, in principle, be
two things:
1. Transmit data from the line cable
to the S-ART's two outputs OUT0
and OUT1.
2. Answer the S-ART controller
with the condition of the 2 inputs
IN0 and IN1 or IN2-3.
The line signal is divided into 3 lev-
els in order to give a time signal for
synchronizing and a data signal
containing addresses, orders etc.
Typical signal levels for the three
levels would be 15V, 7.5V and 0V.
s Receives/Transmits Data
on Only Two Leads
s Low Current Consumption
s High Noise Immunity
s Sabotage Surveilled Loop
Input
Block Diagram
A method by
which, in principle,
the system can be
extended to an
infinite number of
S-ART is shown on
the block diagram.
The controller
scans the in/out-
puts of a number
of lines, each with
a maximum of 30
S-ARTs.
Line 1
Controller
Line N
V
CK "1"
DATA "1"
DATA "0"
S-ART
Package Options
16L PDIP & 16L SO Wide
OUT0 1
A4 2
A3 3
A2 4
A1 5
A0 6
IN1 7
IN0 8
16 OUT1
15 DSR
14 IN2
13 IN3
12 V_DD
11 DATA_OUT
10 Gnd
9 LINE
April, 2001 - Rev. 5
ON Semiconductor
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885–3600 Fax: (401)885–5786
N. American Technical Support: 800-282-9855
Web Site: www.onsemi.com
1