MC145745
features
. A low consumption device, the MC145745 integrates various functions in a small package. This modem IC is best suited for telemeter and other applications of this type.
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- Conforms to ITU V.21 and V.23 Remendations DTMF Generator and Receiver for all 16 Standard Digits Capable of Driving 0 d Bm into a 600 Ω Load (VCC = 5 V) Automatic Gain Control (AGC) Amplifier for the DTMF Receiver Call- Progress Tone Detector Four- Wire Serial Data Interface (SCP) Programmable Transmission and Carrier Detection Levels FSK/DTMF Analog Loopback Self- Test Function Crystal Oscillator (3.579545 MHz) and Half Divider Circuit (7.159090 MHz) for External Inputs
- Operates in the Voltage Range of 3.3
- 5.5 V
- Power Down Mode (ICC < 1 µA)
28 1
FW SUFFIX SOIC CASE 751M
ORDERING INFORMATION
MC145745FW SOIC
PIN ASSIGNMENT
GND Vref CDA TLA TEST 1 Rx D Tx D CD CLKO X1 X2 ECLK PB0 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VCC Rx A Tx A1 Tx A2 TEST 2 SCPEN...
