參數(shù)資料
型號: HCD404669
廠商: Hitachi,Ltd.
英文描述: Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
中文描述: 低電壓如同在微機芯片的DTMF產(chǎn)生電路(帶雙音多頻電路的低電壓微計算機)
文件頁數(shù): 8/142頁
文件大小: 894K
代理商: HCD404669
HD404669 Series
8
Pin Number
Item
Symbol
FP-64A, chip
I/O
Function
Voltage
comparator
COMP
0
,
COMP
1
63, 64
I
Comparator analog input pins.
VC
ref
1
Analog input pin threshold voltage reference level power
supply pin.
Frequency
division
ratio
selection
SEL
58
I
Pin that selects the system clock division ratio immediately
after a reset and when returning from stop mode to active
mode. Connect to Vcc voltage to select division-by-4, or to
GND potential to select division-by-32.
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