pic32mx320f032h Microchip Technology Inc., pic32mx320f032h Datasheet - Page 131

• Manufacturer Part Number: pic32mx320f032h
• Description: 64/100-pin General Purpose And Usb 32-bit Flash Microcontrollers
• Manufacturer: Microchip Technology Inc.

TABLE 28-17: EXTERNAL CLOCK TIMING REQUIREMENTS
© 2009 Microchip Technology Inc.
AC CHARACTERISTICS
OS10
OS11
OS12
OS13
OS14
OS15
OS20
OS30
OS31
OS40
OS41
OS42
Note 1:
Param.
No.
2:
3:
4:
5:
F
T
T
T
T
T
T
T
G
Symbol
OSC
OS
OS
OS
OS
OST
OSC
FSCM
Data in “Typical” column is at 3.3V, 25°C unless otherwise stated. Parameters are characterized but are
not tested.
Instruction cycle period (T
characterization data for that particular oscillator type under standard operating conditions with the device
executing code. Exceeding these specified limits may result in an unstable oscillator operation and/or
higher than expected current consumption. All devices are tested to operate at “min.” values with an exter-
nal clock applied to the OSC1/CLKI pin.
40 MHz maximum for PIC32MX 40 MHz family variants.
PLL input requirements: 4 MH
characterized, but tested at 10 MHz only at manufacturing.
This parameter is characterized, but not tested in manufacturing.
M
L,
H
R,
F
External CLKI Frequency
(External clocks allowed only
in EC and ECPLL modes)
Oscillator Crystal Frequency
T
External Clock In (OSC1)
High or Low Time
External Clock In (OSC1)
Rise or Fall Time
Oscillator Start-up Timer Period
(Only applies to HS, HSPLL,
XT, XTPLL and SOSC Clock
Oscillator modes)
Primary Clock Fail Safe
Time-out Period
External Oscillator
Transconductance
OSC
= 1/F
Characteristics
OSC
= T
CY
CY
) equals the input oscillator time base period. All specified values are based on
Z
(Note 2)
≤ F
PLLIN
Preliminary
≤ 5 MH
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature
0.45 x T
Min.
DC
10
10
32
—
—
—
—
—
4
3
4
Z
(use PLL prescaler to reduce F
OSC
Typical
32.768
1024
—
—
—
—
—
—
—
—
—
12
2
PIC32MX3XX/4XX
(1)
-40°C ≤ T
0.05 x T
50 (Note 3)
50 (Note 5)
Max.
100
10
10
25
25
—
—
—
—
—
OSC
A
≤ +85°C for Industrial
OSC
Units
mA/V V
nsec
nsec
T
MHz
MHz
MHz
MHz
MHz
MHz
kHz
ms
OSC
—
). This parameter is
DS61143F-page 129
XTPLL
HS (Note 5)
SOSC (Note 5)
EC (Note 5)
EC (Note 5)
ECPLL (Note 4)
XT (Note 5)
(Notes 4, 5)
HSPLL
(Notes 4, 5)
See parameter
OS10 for F
value
EC (Note 5)
(Note 5)
(Note 5)
T
(Note 5)
A
DD
Conditions
= +25°C
= 3.3V
OSC