iC-HT
DUAL CW LASER DIODE DRIVER
nar y
limi
pre
Rev A1, Page 9/42
OPERATING REQUIREMENTS: SPI and I²C Interface
Operating Conditions: VB = 2.8 . . . 8 V , Tj = -40 . . . 125 °C
Item
No.
Symbol
Parameter
Conditions
Min.
Setup Time:
NCS/A1 hi
→
lo before SCLK lo
→
hi
Setup Time:
MOSI/A0 stable before SCLK/SCL lo
→
hi
INS/WKR = lo
INS/WKR = lo
20
20
Max.
ns
ns
Unit
SPI / I²C Interface Timing
I001 tsCCL
I002 tsDCL
I003 thDCL
Hold Time:
INS/WKR = lo
MOSI/A0 stable after SCLK/SCL lo
→
hi
Signal Duration SCLK/SCL hi
Signal Duration SCLK/SCL lo
Hold Time: NCS/A1 lo after SCLK/SCL INS/WKR = lo
lo
→
hi
Signal Duration NCS/A1 hi
Propagation Delay:
MISO/SDA stable after SCLK/SCL hi
→
lo
SPI clock frequency
I²C clock frequency
INS/WKR = lo
V(VDD) > 3 V, Cload = 10 pF, no external
pull-up
5
ns
I004 tCLh
I005 tCLI
I006 thCLC
I007 tCSh
I008 tpCLD
5
5
5
20
0
30
µs
µs
ns
ns
ns
I009 f(SCLK)
I010 f(SCL)
10
400
MHz
kHz
ICHAUS [ IC-HAUS GMBH ]
