參數(shù)資料
型號: 935260607118
廠商: NXP SEMICONDUCTORS
元件分類: 無繩電話/電話
英文描述: TELEPHONE MULTIFUNCTION CKT, PDSO28
封裝: PLASTIC, SOT-136, SO-28
文件頁數(shù): 17/56頁
文件大?。?/td> 360K
代理商: 935260607118
2000 May 19
24
Philips Semiconductors
Product specication
One-chip telephone ICs with speech,
dialler and ringer functions
UBA2050(A); UBA2051(A;C)
Keyboard structure
The UBA205xx supports the keyboard structure given in Fig.25. Pin C4 is not available in the UBA2050x.
For key definitions, see Table 5.
Table 5
Key denitions
Notes
1. In tone dialling mode.
2. In pulse dialling mode, when MMS resistor option is off (see Table 7).
KEYS
DEFINITION
[0] to [9] and [#](1);
[/T](1)
digits; see Table 6
[/T](2); [P → T]
switch over to DTMF dialling (mixed mode dialling)
[LNR/P]
last number redial if this key is the rst key pressed after going off-hook; access pause if
this key is not the rst key pressed after going off-hook
[M1] to [M3]
direct memories
[MEM]
indirect memory recall
[R]
recall (ash function)
[STORE]
memory programming
handbook, full pagewidth
FCA139
R
LNR/P
STORE
P->T
0
*/T
1
4
7
23
5
#
M1
M3
M2
MEM
6
9
FTSA
FTSB
MMS
PPS
APT
PTS
MBS
C3
C2
GND
C4
R4
R3
C1
R2
R1
8
Fig.25 Keyboard structure.
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