73K321L Ver la hoja de datos (PDF) - TDK Corporation
Número de pieza
componentes Descripción
Fabricante
73K321L Datasheet PDF : 24 Pages
| |||
73K321L
CCITT V.23, V.21
Single-Chip
TONE REGISTER (continued)
BIT NO.
D3, D2, D1,
D0
(continued)
NAME
D4
Transmit
DTMF
D5
Transmit
Answer Tone
D6
Transmit Calling
Tone
D7
RXD Output
Control
CONDITION
0
1
0
1
0
1
0
1
DESCRIPTION
KEYBOARD
DTMF CODE
TONES
EQUIVALENT D3 D2 D1 D0 LOW HIGH
*
1 0 1 1 941 1209
#
1 1 0 0 941 1477
A
1 1 0 1 697 1633
B
1 1 1 0 770 1633
C
1 1 1 1 852 1633
D
0 0 0 0 941 1633
Disabled DTMF.
Activates DTMF. The selected DTMF tones are
transmitted continuously when this bit is high. TX DTMF
overrides all other transmit functions.
Disables answer tone generator.
Enables answer tone generator. A 2100 Hz answer tone
will be transmitted continuously when the transmit enable
bit is set. The device must be in Answer mode.
Disables calling tone generator.
Transmit calling tone in either mode.
Enables RXD pin. Receive data will be output on RXD.
Disables RXD pin. The RXD pin reverts to a high
impedance with internal weak pull-up resistor.
ID REGISTER
ID
D7
D6
D5
D4
D3
D2
D1
D0
110
ID
ID
ID
ID
X
X
X
X
BIT NO.
NAME
CONDITION
DESCRIPTION
D7 D6 D5 D4 Indicates Device:
D7, D6, D5
D4
Device
Identification
Signature
00
01
10
XX
XX
XX
73K212AL, 73K321L or 73K322L
73K221AL or 73K302L
73K222AL, 73K222BL
1 1 0 0 73K224L
D3-D0
Not Used
1 1 10
1 1 00
1 1 10
Undefined
73K324L
73K224BL
73K324BL
Mask in software.
12
Share Link: 