Datasheet

PIC32MX1XX/2XX
DS61168E-page 288 Preliminary  2011-2012 Microchip Technology Inc.
TABLE 30-5: EXTERNAL CLOCK TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  TA  +85°C for Industrial
Param.
No.
Symbol Characteristics Min. Typical Max. Units Conditions
MOS10 F
OSC External CLKI Frequency
(External clocks allowed only
in EC and ECPLL modes)
DC
4
—
—
50
50
MHz
MHz
EC (Note 2)
ECPLL (Note 1)
Note 1: PLL input requirements: 4 MHz  FPLLIN  5 MHz (use PLL prescaler to reduce Fosc). This parameter is
characterized, but tested at 10 MHz only at manufacturing.
2: This parameter is characterized, but not tested in manufacturing.
TABLE 30-6: SPIx MASTER MODE (CKE = 0) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  TA  +85°C for Industrial
Param.
No.
Symbol Characteristics Min. Typical Max. Units Conditions
MSP10 T
SCL
SCKx Output Low Time
(Note 1,2)
TSCK/2 — — ns —
MSP11 T
SCH SCKx Output High Time
(Note 1,2)
T
SCK/2
——ns —
Note 1: These parameters are characterized, but not tested in manufacturing.
2: The minimum clock period for SCKx is 40 ns. Therefore, the clock generated in Master mode must not
violate this specification.
TABLE 30-7: SPIx MODULE MASTER MODE (CKE = 1) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  T
A  +85°C for Industrial
Param.
No.
Symbol Characteristics
(1)
Min. Typ. Max. Units Conditions
MSP10 TSCL SCKx Output Low Time
(Note 1,2)
TSCK/2 — — ns —
MSP11 T
SCH SCKx Output High Time
(Note 1,2)
TSCK/2 — — ns —
Note 1: These parameters are characterized, but not tested in manufacturing.
2: The minimum clock period for SCKx is 40 ns. Therefore, the clock generated in Master mode must not
violate this specification.