iC-GF
TRANSCEIVER
Rev C1, Page 12/26
OPERATING REQUIREMENTS: SPI Interface
Operating Conditions: VBO = 9...30 V (referenced to VN), Tj = -40...125 °C
Item Symbol
No.
Parameter
Conditions
Unit
Min.
Max.
I001 tsCCL
I002 tsDCL
I003 thDCL
Setup Time:
NCS hi → lo before SCLK lo → hi
Setup Time:
MOSI stable before SCLK lo → hi
Hold Time:
15
20
0
ns
ns
ns
MOSI stable after SCLK lo → hi
I004 tCLh
I005 tCLI
Signal Duration SCLK hi
30
30
0
ns
ns
ns
ns
ns
Signal Duration SCLK lo
I006 thCLC
I007 tCSh
I008 tpCLD
Hold Time: NCS lo after SCLK lo → hi
Signal Duration NCS hi
0
Propagation Delay:
MISO stable after SCLK hi → lo
0
90
25
I009 tpCSD
I010 f(SPI)
Propagation Delay:
MISO high impedance after
NCS lo → hi
0
ns
SPI Frequency
5
MHz
tCSh
NCS(=QCFG1)
tsCCL
tCLh
thCLC
tpCLl
SCLK (= QCFG2)
MOSI (= IN2)
tsDCL thDCL
MSB in
LSB in
tristate
MISO (= NUVD)
tCSh
NCS(=QCFG1)
SCLK (= QCFG2)
MOSI (= IN2)
tpCLh tpCLl
thCLC
don’t care
tpCLD
tpCLD
tpCSD
MISO (= NUVD)
MSB out
LSB out
Figure 1: SPI write cycle (top) and read cycle (bottom)
ICHAUS [ IC-HAUS GMBH ]
