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W91414 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - TONE/PULSE DIALER - Winbond

भाग संख्या W91414
समारोह TONE/PULSE DIALER
मैन्युफैक्चरर्स Winbond 
लोगो Winbond लोगो 
पूर्व दर्शन
1 Page
		
<?=W91414?> डेटा पत्रक पीडीएफ

W91414 pdf
PIN CONFIGURATION
W91410 SERIES
C1
C2
C3
C4
B/M
VSS
XT
XT
T/P MUTE
1
2
3
4
5
6
7
8
9
18 R4
17 R3
16 R2
15 R1
14 VDD
13 MODE
12 DTMF
11 DP
10 HKS
PIN DESCRIPTION
SYMBOL
PIN
Column-
Row Inputs
14
&
1518
XT, XT
7, 8
T/P MUTE
9
MODE
HKS
13
10
I/O FUNCTION
I The keyboard input may be from either the standard 4 × 4 keyboard
or an inexpensive single contact (form A) keyboard. Electronic
input from a µC can also be used. A valid key entry is defined as a
single row being connected to a single column.
I, O A built-in inverter provides oscillation with an inexpensive
3.579545 MHz crystal or ceramic resonator.
O The T/P MUTE is a conventional CMOS N-channel open drain
output. The output transistor is switched on during pulse and tone
mode dialing sequence and flash break. Otherwise, it is switched
off.
I Pulling mode pin to VSS places the dialer in tone mode. Pulling
mode pin to VDD places the dialer in pulse mode (10 ppS).
Leaving mode pin floating places the dialer in pulse mode (20 ppS).
I Hook switch input.
HKS = 1: On-hook state. Chip in sleeping mode, no operation.
HKS = 0: Off-hook state. Chip enabled for normal operation.
The HKS pin is pulled to VDD by an internal resistor.
-2-

विन्यास 12 पेज
डाउनलोड[ W91414 Datasheet.PDF ]


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