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RFM95 Datasheet(PDF) 19 Page - HOPE Microelectronics CO., Ltd.

Part No. RFM95
Description  Low Power Long Range Transceiver Module
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Maker  HOPE [HOPE Microelectronics CO., Ltd.]
Homepage  https://www.hoperf.com/
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 19 page
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Page 19
RFM95/96/97/98(W)
Tel: + 86-755-82973805
Fax: + 86-755-82973550
E-mail: sales@hoperf.com http:/ / www.hoperf.com
WIRELESS & SENSING
PRELIMINARY
DATASHEET
2.4.6. Digital Specification
Conditions: Temp = 25Ā° C, VDD = 3.3 V, FXOSC = 32 MHz, unless otherwise specified.
Table 57 Digital Specification
Symbol
Description
Conditions
Min
Typ
Max
Unit
VIH
Digital input level high
0.8
-
-
VDD
VIL
Digital input level low
-
-
0.2
VDD
VOH
Digital output level high
Imax = 1 mA
0.9
-
-
VDD
VOL
Digital output level low
Imax = -1 mA
-
-
0.1
VDD
FSCK
SCK frequency
-
-
10
MHz
tch
SCK high time
50
-
-
ns
tcl
SCK low time
50
-
-
ns
trise
SCK rise time
-
5
-
ns
tfall
SCK fall time
-
5
-
ns
tsetup
MOSI setup time
From MOSI change to SCK rising
edge.
30
-
-
ns
thold
MOSI hold time
From SCK rising edge to MOSI
change.
20
-
-
ns
tnsetup
NSS setup time
From NSS falling edge to SCK rising
edge.
30
-
-
ns
tnhold
NSS hold time
From SCK falling edge to NSS rising
edge, normal mode.
100
-
-
ns
tnhigh
NSS high time between SPI
accesses
20
-
-
ns
T_DATA
DATA hold and setup time
250
-
-
ns




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