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W91621 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 10-MEMORY TONE/PULSE DIALER - Winbond

भाग संख्या W91621
समारोह 10-MEMORY TONE/PULSE DIALER
मैन्युफैक्चरर्स Winbond 
लोगो Winbond लोगो 
पूर्व दर्शन
1 Page
		
<?=W91621?> डेटा पत्रक पीडीएफ

W91621 pdf
PIN CONFIGURATION
W91620 SERIES
C1
C2
C3
C4
P MUTE
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/C5
10 HKS
PIN DESCRIPTION
SYMBOL PIN NO. I/O
FUNCTION
Column-
Row Inputs
14
&
1518
I Keyboard inputs are designed for use with either a standard 4 × 5
keyboard or an inexpensive single contact (Form A) keyboard.
Electronic input from a µC can also be used.
Valid key entry is defined by a connection between a single row and
a single column.
XT, XT
7, 8 I, O A built-in inverter provides oscillation with an inexpensive
3.579545 MHz crystal or ceramic resonator.
T/P MUTE
9
MODE
13
O The T/P MUTE is a conventional CMOS inverter output. It is low
during pulse and tone mode dialing sequence and flash break;
otherwise, it remains high.
I Mode pin.
Pull to VSS: Tone mode
Pull to VDD or leave floating: Pulse mode (10 ppS, M/B = 2:3 or 1:2)
-2-

विन्यास 16 पेज
डाउनलोड[ W91621 Datasheet.PDF ]


शेयर लिंक


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