
PIC16C717/770/771
DS41120B-page 174
2002 Microchip Technology Inc.
FIGURE 15-19:
SPI MASTER MODE TIMING (CKE = 1)
TABLE 15-18: SPI MODE REQUIREMENTS (MASTER MODE, CKE = 1)
Param.
No.
Symbol
Characteristic
Min
Typ Max Units
Conditions
71*
TscH
SCK input high time
(Slave mode)
Continuous
1.25TCY + 30
——
ns
71A*
Single Byte
40
——
ns
Note 1
72*
TscL
SCK input low time
(Slave mode)
Continuous
1.25TCY + 30
——
ns
72A*
Single Byte
40
——
ns
Note 1
73*
TdiV2scH,
TdiV2scL
Setup time of SDI data input to SCK
edge
100
——
ns
73A*
TB2B
Last clock edge of Byte1 to the 1st clock
edge of Byte2
1.5TCY + 40
——
ns
Note 1
74*
TscH2diL,
TscL2diL
Hold time of SDI data input to SCK edge
100
——
ns
75*
TdoR
SDO data output rise
time
PIC16CXXX
—
10
25
ns
PIC16LCXXX
20
45
ns
76*
TdoF
SDO data output fall time
—
10
25
ns
78*
TscR
SCK output rise time
(Master mode)
PIC16CXXX
—
10
25
ns
PIC16LCXXX
20
45
ns
79*
TscF
SCK output fall time (Master mode)
—
10
25
ns
80*
TscH2doV,
TscL2doV
SDO data output valid
after SCK edge
PIC16CXXX
——
50
ns
PIC16LCXXX
—
100
ns
81*
TdoV2scH,
TdoV2scL
SDO data output setup to SCK edge
TCY
——
ns
*
These parameters are characterized but not tested.
Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only
and are not tested.
Note 1: Specification 73A is only required if specifications 71A and 72A are used.
SS
SCK
(CKP = 0)
SCK
(CKP = 1)
SDO
SDI
81
71
72
74
75, 76
78
80
MSb
79
73
MSb IN
BIT6 - - - - - -1
LSb IN
BIT6 - - - -1
LSb