M-8880-01P Clare, M-8880-01P Datasheet - Page 6
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M-8880-01P
Manufacturer Part Number
M-8880-01P
Description
IC TRANSCEIVER DTMF CMOS 20-DIP
Manufacturer
Clare
Datasheet
1.M-8880-01P.pdf
(13 pages)
Specifications of M-8880-01P
Function
DTMF Transceiver
Number Of Circuits
1
Voltage - Supply
4.75 V ~ 5.25 V
Current - Supply
10mA
Power (watts)
78.75mW
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
*
Includes
Automatic Tone Burst Mode, Call Progress Mode
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Interface
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M-8880-01P
Manufacturer:
TELTONE
Quantity:
20 000
registers on powerup; however, as a precautionary measure the
initialization software should include a routine to clear the regis-
ters. Refer to Tables 3 and 4 for details on the control registers.
The IRQ/CP pin can be programmed to provide an interrupt re-
quest signal on validation of DTMF signals, or when the trans-
mitter is ready for more data (burst mode only). The IRQ/CP pin
is configured as an open-drain output device and as such re-
quires a pullup resistor (see Figure 10).
Ordering Information
M-888001P
M-8880-01SM
M-8880-01T
40-406-00012, Rev. G
RS0
0
0
1
1
Table 6 Internal Register Functions
R/W
0
1
0
1
20-pin plastic DIP
20-pin plastic SOIC
20-pin plastic SOIC,Tape and Reel
Read from status register
Write to control register
Figure 10 Application Circuit (Single-Ended Input)
Read from receiver
Write to transmitter
Function
Page 6
M-8880
RSEL
C/R
b3
b3
Table 8 CRB Bit Positions
Table 7 CRA Bit Postions
Figure 9 Equations
IRQ
S/D
b2
b2
CP/DTMF
TEST
b1
b1
www.clare.com
BURST
TOUT
b0
b0