參數(shù)資料
型號(hào)： HT9172
廠商： Holtek Semiconductor Inc.
英文描述： DTMF Receiver
中文描述： 雙音多頻接收器
文件頁(yè)數(shù)： 3/13頁(yè)
文件大?。?/td> 124K
代理商： HT9172
Approximate Internal Connection Circuits
Absolute Maximum Ratings
Supply Voltage..............................V
SS
0.3V to V
SS
+6V
Storage Temperature............................ 50 C to 125 C
Input Voltage..............................V
SS
0.3V to V
DD
+0.3V
Operating Temperature........................... 40 C to 85 C
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those
listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil-
ity.
D.C. Characteristics
Ta=25 C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
V
DD
Operating Voltage
2.5
5
5.5
V
I
DD
Operating Current
5V
3
7
mA
I
STB
Standby Current
5V
V
PWDN
=V
DD
,
(Not include PWDN
pull-low current)
1
5
A
V
IL
Input Low Voltage
5V
1.0
V
V
IH
Input High Voltage
5V
4.0
V
I
IL
Input Low Current
5V
V
VP
=V
VN
=0V
0.1
A
I
IH
Input High Current
5V
V
VP
=V
VN
=5V
0.1
A
R
OE
Pull-high Resistance (OE)
5V
V
OE
=0V
70
110
160
k
R
PL
Pull-low Resistance (INH, PWDN)
5V
V
INH
=5.0V,
V
PWDN
=5.0V
150
250
375
k
R
IN
Input Impedance (VN, VP)
5V
10
M
I
OH
Source Current (D0~D3, EST, DV)
5V
V
OUT
=4.5V
0.4
0.8
mA
I
OL
Sink Current (D0~D3, EST, DV)
5V
V
OUT
=0.5V
1.0
2.5
mA
f
OSC
System Frequency
5V
Crystal=3.5795MHz
3.5759
3.5795
3.5831
MHz
HT9172
Rev. 1.00
3
March 30, 2006
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