ht82k72e Holtek Semiconductor Inc., ht82k72e Datasheet - Page 4
ht82k72e
Manufacturer Part Number
ht82k72e
Description
Ht82k72e/ht82k72a -- One Channel Keyboard With R-f Type Mcu
Manufacturer
Holtek Semiconductor Inc.
Datasheet
1.HT82K72E.pdf
(44 pages)
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A.C. Characteristics
Power AMP A.C. Characteristics
Rev. 1.00
f
t
t
t
t
t
t
t
f
t
Amp. Power
Amp. Load Impedance
SYS
RCSYS
WDT1
RES
configure
OST
LVD
LVR
TIMER
OSCsetup
Symbol
System Clock
Watchdog OSC with 6-Stage
Prescaler Period
Watchdog Time-out Period (RC)
External Reset Low Pulse Width
Watchdog Time-out Period
(System Clock)
Oscillation Start-up Timer Period
Low Voltage Detector Voltage
Low Voltage Width to Reset
Timer I/P Frequency (TMR)
Crystal Setup
Parameter
Parameter
V
V
3V
3V
3V
DD
DD
WDTS=1
For half option
For full option
Test Conditions
Test Conditions
4
Conditions
Conditions
HT82K72E/HT82K72A
Min.
Min.
200
1
1
0
1024
Typ.
4.57
Typ.
512
27
71
10
50
February 20, 2008
Max.
4000
Max.
-3
0
Ta=25 C
Ta=25 C
1/f
MHz
t
dBm
dBm
Unit
Unit
kHz
rcsys
ms
ms
ms
ms
SYS
s
s
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