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| 型號(hào)： | PCA8802U/2AA/1 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PBGA8 |
| 封裝： | 1.19 X 1.14 MM, 0.22 MM HEIGHT, LEAD FREE, WLCSP-8 |
| 文件頁(yè)數(shù)： | 14/34頁(yè) |
| 文件大小： | 160K |
| 代理商： | PCA8802U/2AA/1 |
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PCA8802_1
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 01 — 19 February 2009
21 of 34
NXP Semiconductors
PCA8802
Smartcard RTC
[1]
[2]
Integrated load capacitance, CL(itg), is a calculation of COSCI and COSCO in series:
.
12. Dynamic characteristics
[1]
All timing values are valid within the operating supply voltage and ambient temperature range and are referenced to VIL and VIH with an
input voltage swing of VSS to VDD.
[2]
Rise and fall times are not limited. Fast edges may lead to system EMI problems, whilst slow edges are susceptible to noise.
IOL
LOW-level output current
VOL = 1.0 V;
VDD =5V;
on pins INT and SDA
2
7-
mA
VOL = 0.32 V;
VDD = 1.6 V;
on pins INT and SDA
0.4
1-
mA
ILO
output leakage current
VO =VDD or VSS;
on pins SDA and INT
200
0
+200
nA
Table 11.
Static characteristics …continued
VDD = 1.6 V to 5.5 V; VSS =0V; fosc = 32.768 kHz; Tamb = 40 °C to +85 °C; quartz crystal: Rs =30k, CL = 6.0 pF; unless
otherwise specied.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
C
Litg
()
C
OSCI
C
OSCO
()
C
OSCI
C
OSCO
+
()
--------------------------------------------
=
Table 12.
Dynamic characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Timing characteristics: serial bus
fSCL
SCL clock frequency
-
1
MHz
tLOW
LOW period of the SCL clock
500
-
ns
HIGH
HIGH period of the SCL clock
260
-
ns
tBUF
bus free time between a STOP and
START condition
500
-
ns
tHD;STA
hold time (repeated) START condition
260
-
ns
tSU;STA
set-up time for a repeated START
condition
260
-
ns
tr
rise time of both SDA and SCL signals
-10
-
ns
tf
fall time of both SDA and SCL signals
-10
-
ns
tSU;DAT
data set-up time
50
-
ns
tHD;DAT
data hold time
0
-
ns
tSU;STO
set-up time for STOP condition
260
-
ns
tVD;DAT
data valid time
75
-
450
ns
Cb
capacitive load for each bus line
-
50
pF
Timing characteristics: INT
tw(int)
interrupt pulse width
20
40
80
s
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