MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document
by MC145436A/D
MC145436A
Advance Information
Low-Power Dual Tone
Multiple Frequency Receiver
The MC145436A is a low鈥損ower and improved input sensitivity version of the
MC14LC5436.
The MC145436A is a silicon gate CMOS LSI device containing the filter and
decoder for detection of a pair of tones conforming to the DTMF standard with
outputs in hexadecimal. Switched capacitor filter technology is used together
with digital circuitry for the timing control and output circuits. The MC145436A
provides excellent power line noise and dial tone rejection and is suitable for
applications in central office equipment, PABX, and keyphone systems, remote
control equipment and consumer telephony products.
The MC145436A offers the following performance features:
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Single + 5 V Power Supply
Detects All 16 Standard Digits
Uses Inexpensive 3.58 MHz Crystal
Provides Guard Time Controls to Improve Speech Immunity
Output in 4鈥揃it Hexadecimal Code
Built鈥揑n 60 Hz and Dial Tone Rejection
Pin Compatible with SSI鈥?04, MC145436, and MC14LC5436
Functional and Applicational Compatible with MC145436 and
MC14LC5436
14
1
P SUFFIX
PLASTIC DIP
CASE 646
16
1
DW SUFFIX
SOG PACKAGE
CASE 751G
ORDERING INFORMATION
MC145436AP
Plastic DIP
MC145436ADW SOG Package
PIN ASSIGNMENTS
PDIP
D2
D1
ENB
VDD
GT
Xen
Ain
1
2
3
4
5
6
7
14
13
12
11
10
9
8
D4
D8
DV
ATB
Xin
Xout
GND
SOG
D2
D1
ENB
VDD
NC
GT
Xen
Ain
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
D4
D8
DV
NC
ATB
Xin
Xout
GND
NC = NO CONNECTION
This document contains information on a new product. Specifications and information herein are subject to change without notice.
REV 1
1/96
漏
Motorola, Inc. 1996
MOTOROLA
MC145436A
1
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