Datasheet

 2010 Microchip Technology Inc. DS39905E-page 293
PIC24FJ256GA110 FAMILY
FIGURE 28-13: SPIx MODULE SLAVE MODE TIMING CHARACTERISTICS (CKE = 0)
TABLE 28-26: SPIx MODULE SLAVE MODE TIMING REQUIREMENTS (CKE = 0)
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
——30ns
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
20 — — ns
SP41 TscH2diL,
Tsc L 2d iL
Hold Time of SDIx Data Input
to SCKx Edge
20 — — ns
SP50 TssL2scH,
Tss L 2s cL
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
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: Assumes 50 pF load on all SPIx pins.
SSx
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SDI
SP50
SP40
SP41
SP30,SP31
SP51
SP35
SDIx
MSb LSb
Bit 14 - - - - - -1
Bit 14 - - - -1
LSb In
SP52
SP73
SP72
SP72
SP73
SP71 SP70
MSb In