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BK4819 データシート(PDF) 6 Page - Beken Corporation

部品番号 BK4819
部品情報  Analog Two Way Radio IC
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メーカー  BEKEN [Beken Corporation]
ホームページ  http://www.bekencorp.com/en
Logo BEKEN - Beken Corporation

BK4819 データシート(HTML) 6 Page - Beken Corporation

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BK4819
Proprietary and Confidential
Page 6 of 22
1.3
SPI Interface
The BK4819 has 3-wires SPI interface. These 3 wires are SCK(PIN25),
SCN(PIN26, SDATA(PIN27) for data exchange. SCK and SCN are input pins,
while SDATA is bi-direction pin.
BK4819 always latch data at the SCK rising edge and output its data at SCK
falling edge.
R/W A6
...
A0
D15 D14
D1
D0
SCK
SDATA
SCN
A1
...
A5
Figure 5. Three-wires Interface Timing
2 Electrical Specifications
2.1
Absolute Maximum Ratings
Maximum ratings are the extreme limits to which BK4819 can be exposed
without permanently damaging it. Exposure to absolute maximum ratings for
prolonged periods of time may affect BK4819’s reliability. Table 1 specifies the
absolute maximum ratings for BK4819.
Table 1. Absolute Maximum Ratings
Parameter
Symbol
Min
Typ
Max
Unit
Supply Voltage
VDD
-0.3
+3.6
V
I/O pin voltage
VIO
-0.3
VDD+0.3
V
Storage Temperature
TS
–40
25
105
°C
2.2
Recommended Operating Conditions
The operating conditions are the physical parameters that BK4819 can operate
within. The operating conditions for BK4819 are defined in Table 2.
Table 2. Recommended Operating Conditions
Parameter
Symbol
Min
Typ
Max
Unit
Supply Voltage
VDD
2.6
3.6
V
Operating Temperature
TO
–30
25
85
°C
Notes:
All minimum and maximum specifications are guaranteed and apply across the
recommended operating conditions. Typical values apply at VDD=3.3 V and 25 °C unless


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