73M2901CLIH Просмотр технического описания (PDF) - TDK Corporation
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73M2901CLIH Datasheet PDF : 18 Pages
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73M2901CL
V.22bis Single Chip Modem
DIGITAL INTERFACE PIN DESCRIPTION
PIN
NAME
32 pin
PLCC
32 pin
TQFP
44 pin LQFP
RESET
13
9
9
RXCLK
31
27
36
TXCLK
28
24
31
TXD
27
23
30
RXD
30
26
35
USR10
12
8
8
USR11
11
7
7
576
10
6
6
&76
9
5
5
'65
8
4
4
'&'
7
3
3
5,
4
32
43
5(/$<
3
31
40
USR20
1
29
38
TYPE DESCRIPTION
I Reset
O Receive data synchronous clock
O Transmit data synchronous clock
I Serial data input from DTE
O Serial output to DTE
Programmable I/O port. This pin optionally be
I/O used to control an external switch for external Line
In Use circuitry.
Programmable I/O port. This pin can optionally be
I/O used to control an external switch for caller ID
operation.
I Request to send
O Clear to send
O Data set ready
O Data carrier detect
O Ring indicator
O Relay driver output
I/O Programmable I/O port
EXTERNAL INTERRUPTS PIN DESCRIPTION
PIN
NAME
32 pin
PLCC
32 pin
TQFP
44 pin LQFP
5,1*
2
30
39
'75
32
28
37
TYPE DESCRIPTION
I
External interrupt – Line interface ring detection
circuitry input
I External interrupt – DTE DTR signal input
OSCILLATOR PIN DESCRIPTION
PIN
NAME
32 pin 32 pin
PLCC TQFP
44 pin LQFP
OSCIN
24
19
26
OSCOUT
23
18
25
TYPE DESCRIPTION
I
Crystal input for internal oscillator, also input for
external source
O Crystal oscillator output
4
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