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AMC2442 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Modem Controller - AMC

भाग संख्या AMC2442
समारोह Modem Controller
मैन्युफैक्चरर्स AMC 
लोगो AMC लोगो 
पूर्व दर्शन
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PIN DESCRIPTIONS
PIN NUMBER
Pin Name
DIP PLCC QFP I/O TYPE Description
DCD
1 2 40 Output DTE Data Carrier Detect output signal. Indicates modem has detected carrier.
RING
2 3 41 Input Ring detector input. This pin assumes that a half wave opto coupler is used in the
telephone line DAA circuit in the frequency detection algorithm.
RTS 3 4 42 Input DTE Ready To Send input signal. Used for hardware flow control.
DTR
4 5 43 Input DTE Data Terminal Ready input signal. Used to enable modem device
DSR 5 6 44 Output DTE Data Set Ready output signal. Shows handshake training progress.
HS 6 7 1 Output DTE High Speed output signal. Indicates V.22bis connections
RI 7 8 2 Output DTE Ring Indicator. Follows the underlying cadence of any detected ringing signal
Free 8 9 3 I/O DO NOT CONNECT
RESET
9
10 4
Input Reset signal to the AMC2442 Controller. Active High.
TXD
10 11 5 Input DTE Transmit Data Pin. All data communication from the DTE connects via this pin.
RXD
11 13 7 Output DTE Receive Data Pin. All data communication to the DTE connects via this pin.
RXC
12 14 8 Input Receiver Clock Input from AFE. Used in PSK, QAM and synchronous data mode.
TXC
13 15 9 Input Transmitter Clock Input from AFE. Used in PSK, QAM and synchronous data mode.
Free 14 16 10 I/O DO NOT CONNECT
CTS 15 17 11 Output DTE Clear To Send output signal. Used for hardware flow control.
WR 16 18 12 Output Write signal to AFE. Goes active low whenever the SMC wishes to write to the AFE
RD
CLKo
CLKi
17 19 13 Output Read signal to AFE. Goes active low whenever the SMC wishes to read from the AFE DataShee
18 20 14 Output Buffered Clock output signal. Also used as a crystal drive signal when required.
19 21 15 Input ClocDkaintapSuthseigenta4l.UT.hceoSmMC requires an 11.0592MHz signal on this pin.
GND
20 22 16 Power SMC Ground connection
SPKR
21 24 18 Output Speaker Enable drive
Free 22 25 19 I/O DO NOT CONNECT
Free 23 26 20 I/O DO NOT CONNECT
RLY 24 27 21 Output DAA Line Seize relay control. Used if DPCO relay is used to share the telephone with a
standard telephone instrument.
BS 25 28 22 Output DAA Bell Shunt control. Used during LD dialling to provide a low impedance loop.
SENSE
26 29 23 Input Line-In-Use detection input.
CHECK
27 30 24 Output Line-In-Use circuit drive pin.
HOOK
28 31 25 Output DAA Hook switch control. Delayed from Seize to allow for a low cost opto coupler.
NC 29 32 26 I/O DO NOT CONNECT
LATCH
30 33 27 Output ALE signal to AFE. Goes active high to latch an address into the AFE
VCC2
31 35 29 Power Auxiliary power supply pin.
AD7->AD0 32->39 36->43 30->37 I/O
Multiplex Address / Data bus connections to AFE.
VCC1
40 44 38 Power Main power supply pin.
NC
16
I/O DO NOT CONNECT
NC 12 17 I/O DO NOT CONNECT
NC 23 29 I/O DO NOT CONNECT
NC 34 39 I/O DO NOT CONNECT
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