參數(shù)資料
型號: UPD4990AC-A
元件分類: 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述: 0 TIMER(S), REAL TIME CLOCK, PDIP14
封裝: DIP-14
文件頁數(shù): 26/51頁
文件大?。?/td> 211K
代理商: UPD4990AC-A
27
CHAPTER 5 INTERFACE
5.1 POWER SUPPLY CIRCUIT
(1) Using transistor and Ni-Cd battery.
Application circuit is shown Fig. 5-1.
Fig. 5-1 Application Circuit No. 1
1 k
15 k
4.7 k
+5 V
GND
510
RC
1SS53
2SA733
2SC945
1SS53
3.6 V
VDD
CS
C0
3
14
C1
2
C2
1
Power
Fail
5
OE
11
DIN
6
CLK
8
STB
4
10 k
XTAL
13
XTAL
12
CG = 20 pF
CD = 5 ~ 30 pF
32.768 kHz
DOUT
9
TP
10
+5 V
10 k
VSS
7
Ni-Cd
Please select RC for user's battery size.
PD4990A
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