參數(shù)資料
型號: PCF8583
廠商: NXP SEMICONDUCTORS
元件分類: XO, clock
英文描述: Clock/calendar with 240×8-bit RAM(帶240×8位RAM的時鐘/日歷)
中文描述: REAL TIME CLOCK
文件頁數(shù): 19/28頁
文件大小: 162K
代理商: PCF8583
1997 Jul 15
19
Philips Semiconductors
Product specification
Clock/calendar with 240
×
8-bit RAM
PCF8583
Notes
1.
2.
3.
4.
5.
Typical values measured at T
amb
= 25
°
C.
When powering-up the device, V
DD
must exceed 1.5 V until stable operation of the oscillator is established.
Event counter mode: supply current dependant upon input frequency.
The I
2
C-bus logic is disabled if V
DD
< V
EN
.
When the voltages are above or below the supply voltages V
DD
or V
SS
, an input current may flow; this current
must not exceed
±
0.5 mA.
Tested on sample basis.
6.
A0; OSCI
I
LI
input leakage current
V
l
= V
DD
or V
SS
250
+250
nA
INT
I
OL
I
LI
LOW level output current
input leakage current
V
OL
= 0.4 V
V
l
= V
DD
or V
SS
3
1
+1
mA
μ
A
SCL
C
i
I
LI
input capacitance
input leakage current
note 6
V
I
= V
DD
or V
SS
1
7
+1
pF
μ
A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
(1)
MAX.
UNIT
Fig.20 Typical supply current in clock mode as a function of supply voltage.
handbook, halfpage
0
8
4
0
2
4
6
MRB012
IDDO
(
μ
A)
VDD
f
SCL
= 32 kHz; T
amb
= 25
°
C.
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