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Micrel
MICRF505BML/YML
Symbol
Tper
Thigh
Tlow
tfall
trise
Tcsr
Parameter
Min. period of
SCLK
Min. high time of
SCLK
Min. low time of
SCLK
Max. time of
falling edge of
SCLK
Max. time of rising
edge of SCLK
Max. time of rising
Min.
50
20
20
0
Values
Typ.
Max.
1
1
Units
ns
ns
ns
μ s
μ s
ns
Power on Reset
When applying voltage to the MICRF505 a power on
reset state is entered. During the time period of
power on reset, the MICRF505 should be
considered to be in an unknown state and the user
should wait until completed (See Table 6). The
power on reset timing given in Table 6 is covering all
conditions and should be treated as a maximum
delay time. In some application it might be beneficial
to minimize the power on reset time. In these cases
we recommend to follow below procedure:
edge of CS to
falling edge of
SCLK
Tcsf
Min. delay from
5
ns
rising edge of CS
to rising edge of
SCLK
Program
address 0x00
Twrite
Min. delay from
0
ns
Word:0x03
valid IO to falling
edge of SCLK
during a write
Tread
operation
Min. delay from
75
ns
Read back
programmed
address 0x00
rising edge of
SCLK to valid IO
during a read
operation
(assuming load
capacitance of IO
Value=0x03?
NO
POR
is 25pF)
Power on Reset
4.6
9
ms
YES
delay from voltage
is supplied to he
device until POR
completed
Table 6. Timing Specification for the 3-wire
Programming Interface
End of Power on
Reset
October 2006
13
M9999-103106
+1 408-944-0800
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相关代理商/技术参数
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MICRF505YML 制造商:Micrel Inc 功能描述:433/915MHZ ITRANSCEIVER SMD MLF32 制造商:Micrel Inc 功能描述:433/915MHZ ITRANSCEIVER, SMD, MLF32 制造商:Micrel Inc 功能描述:433/915MHZ ITRANSCEIVER, SMD, MLF32; Frequency Min:850MHz; Frequency Max:950MHz; Modulation Type:FSK; Sensitivity dBm:-111dBm; Data Rate:200Kbps; Supply Voltage Min:2V; Supply Voltage Max:2.5V; RF IC Case Style:MLF; No. of Pins:32; ;RoHS Compliant: Yes
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