ST92141 STMicroelectronics, ST92141 Datasheet - Page 167

• Manufacturer Part Number: ST92141
• Description: 8/16-bit Mcu For 3-phase Ac Motor Control
• Manufacturer: STMicroelectronics

SPI TIMING TABLE
(V
Note:
Measurement points are taken with reference to V
(1) Values guaranteed by design.
Legend:
Tck = INTCLK period = OSCIN period when OSCIN is not divided by 2;
N
10
11
12
13
1
2
3
4
5
6
7
8
9
DD
Symbol
= 5V
t
t
t
SPI_H
SPI_L
t
t
f
t
Lead
t
t
t
t
Hold
Rise
SPI
SPI
Lag
Fall
Dis
SU
t
t
t
H
A
V
10%, T
SPI frequency
SPI clock period
Enable lead time
Enable lag time
Clock (SCK) high time
Clock (SCK) low time
Data set-up time
Data hold time (inputs)
Access time (time to data active
from high impedance state)
Disable time (hold time to high im-
pedance state)
Data valid
Data hold time (outputs)
Rise time
(20% V
Fall time
(70% V
OSCIN period x PLL factor when the PLL is enabled.
2 x OSCIN period when OSCIN is divided by 2;
A
DD
DD
=
to 70% V
to 20% V
–
Parameter
40°C to +85°C, C
DD
DD
, C
, C
L
L
= 200pF)
= 200pF)
IH
-V
IH
Load
/ V
OH
Master
Slave
Master
Slave
Slave
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Slave
Master (before capture edge)
Slave (after enable edge)
Master (before capture edge)
Slave (after enable edge)
Outputs: SCK,MOSI,MISO
Inputs: SCK,MOSI,MISO,SS
Outputs: SCK,MOSI,MISO
Inputs: SCK,MOSI,MISO,SS
-V
= 50pF, f
OH
ST92141 - ELECTRICAL CHARACTERISTICS
for positive pulse and V
Condition
INTCLK
= 25MHz, unless otherwise specified)
IL
-V
IL
f
/ V
INTCLK
OL
4 x Tck
2 x Tck
Tck / 4
Tck / 4
Min
-V
40
40
80
90
80
90
40
40
40
40
0
0
0
OL
/ 128
for negative pulse
Value
(1)
f
f
INTCLK
INTCLK
Max
120
240
120
100
100
100
100
/ 4
/ 2
167/179
MHz
Unit
1
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s