MCP413X/415X/423X/425X
1.1
SPI Mode Timing Waveforms and Requirements
V
IHH
V
IL
70
SCK
71
80
SDO
MSb
75, 76
SDI
MSb IN
74
73
BIT6 - - - -1
LSb IN
79
BIT6 - - - - - -1
78
LSb
77
72
83
V
IH
CS
V
IH
84
FIGURE 1-1:
TABLE 1-1:
#
SPI Timing Waveform (Mode = 11).
SPI REQUIREMENTS (MODE = 11)
Characteristic
Symbol
F
SCK
TcsA2scH
TscH
TscL
T
DI
V2scH
TscH2
DI
L
TcsH2
DO
Z
TscL2
DO
V
TscH2csI
TcsA2csI
Min
—
—
60
45
500
45
500
10
20
—
—
100
1
50
Max Units
10
1
—
—
—
—
—
—
—
50
70
170
—
—
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ns
Conditions
V
DD
= 2.7V to 5.5V
V
DD
= 1.8V to 2.7V
V
DD
= 2.7V to 5.5V
V
DD
= 1.8V to 2.7V
V
DD
= 2.7V to 5.5V
V
DD
= 1.8V to 2.7V
SCK Input Frequency
70
71
72
73
74
77
80
83
84
CS Active (V
IL
or V
IHH
) to SCK↑ input
SCK input high time
SCK input low time
Setup time of SDI input to SCK↑ edge
Hold time of SDI input from SCK↑ edge
CS Inactive (V
IH
) to SDO output hi-impedance
SDO data output valid after SCK↓ edge
CS Inactive (V
IH
) after SCK↑ edge
V
DD
= 2.7V to 5.5V
V
DD
= 1.8V to 2.7V
V
DD
= 2.7V to 5.5V
V
DD
= 1.8V to 2.7V
Hold time of CS Inactive (V
IH
) to
CS Active (V
IL
or V
IHH
)
Note 1:
This specification by design.
©
2008 Microchip Technology Inc.
DS22060B-page 11
MICROCHIP [ MICROCHIP TECHNOLOGY ]
