Datasheet

PIC24FJ256GA110 FAMILY
DS39905E-page 294  2010 Microchip Technology Inc.
FIGURE 28-14: SPIx MODULE SLAVE MODE TIMING CHARACTERISTICS (CKE = 1)
TABLE 28-27: SPIx MODULE SLAVE MODE TIMING REQUIREMENTS (CKE = 1)
AC CHARACTERISTICS
Standard Operating Conditions: 2.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  T
A  +85°C for Industrial
Param
No.
Symbol Characteristic Min Typ
(1)
Max Units Conditions
SP70 TscL SCKx Input Low Time 30 — — ns
SP71 TscH SCKx Input High Time 30 — — ns
SP72 TscF SCKx Input Fall Time
(2)
—1025ns
SP73 TscR SCKx Input Rise Time
(2)
—1025ns
SP30 TdoF SDOx Data Output Fall Time
(2)
—1025ns
SP31 TdoR SDOx Data Output Rise Time
(2)
—1025ns
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after SCKx Edge — — 30 ns
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input to
SCKx Edge
20 — — ns
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input to
SCKx Edge
20 — — ns
SP50 TssL2scH,
TssL2scL
SSx
 to SCKx  or SCKx  Input 120 — — ns
SP51 TssH2doZ SSx
 to SDOx Output
High-Impedance
(3)
10 — 50 ns
SP52 TscH2ssH
TscL2ssH
SSx
 after SCKx Edge 1.5 TCY + 40 — — ns
SP60 TssL2doV SDOx Data Output Valid after SSx
Edge — — 50 ns
Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only and
are not tested.
2: The minimum clock period for SCKx is 100 ns. Therefore, the clock generated in Master mode must not
violate this specification.
3: Assumes 50 pF load on all SPIx pins.
SSx
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SP60
SDIx
SP30,SP31
MSb
Bit 14 - - - - - -1 LSb
SP51
Bit 14 - - - -1
LSb In
SP35
SP52
SP52
SP73
SP72
SP72
SP73
SP71 SP70
SP40
SP41
SP50
MSb In