PIC24HJ16GP304-E Datasheet, PDF (239/274 Pages) Microchip Technology – High-Performance, 16-bit Microcontrollers

PIC24HJ32GP202/204 AND PIC24HJ16GP304
23.2 AC Characteristics and Timing
Parameters
The information contained in this section defines
PIC24HJ32GP202/204 and PIC24HJ16GP304 AC
characteristics and timing parameters for high
temperature devices. However, all AC timing
specifications in this section are the same as those in
Section 22.2 “AC Characteristics and Timing
Parameters”, with the exception of the parameters
listed in this section.
Parameters in this section begin with an H, which
denotes High temperature. For example, parameter
OS53 in Section 22.2 “AC Characteristics and
Timing Parameters” is the Industrial and Extended
temperature equivalent of HOS53.
TABLE 23-9: TEMPERATURE AND VOLTAGE SPECIFICATIONS – AC
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤TA ≤+150°C for High Temperature
Operating voltage VDD range as described in Table 23-1.
FIGURE 23-1:
LOAD CONDITIONS FOR DEVICE TIMING SPECIFICATIONS
Load Condition 1 – for all pins except OSC2
Load Condition 2 – for OSC2
VDD/2
RL
Pin
CL
VSS
Pin
CL
RL = 464Ω
CL = 50 pF for all pins except OSC2
VSS
15 pF for OSC2 output
TABLE 23-10: PLL CLOCK TIMING SPECIFICATIONS
AC
Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)
CHARACTERISTICS ^{Operating temperature -40°C ≤TA ≤+150°C for High Temperature}
Param
No.
HOS53
Note 1:
Symbol
Characteristic
Min Typ Max Units
Conditions
DCLK
CLKO Stability (Jitter)⁽¹⁾
-5
0.5
5
% Measured over 100 ms
period
These parameters are characterized by similarity, but are not tested in manufacturing. This specification is
based on clock cycle by clock cycle measurements. To calculate the effective jitter for individual time
bases or communication clocks use this formula:
Peripheral Clock Jitter = -----------------------------^D-----^C----^L---^K------------------------------
⎛
⎝
P^----e^---r^--i^--p^---h^---e^--r^---a^---lF^---B^-O---i^-St^--C--R^---a^---t^--e^----C^----l^--o^---c^--k^{- ⎠⎞}
For example: Fosc = 32 MHz, DCLK = 5%, SPI bit rate clock, (i.e., SCK) is 2 MHz.
SPI SCK Jitter =
---------^D----^C----^L---^K---------
⎛
⎝
3--2-2----_M--M_----H-H_---z--z_⎠⎞
=
-5----%----
16
=
5----%---
4
= 1.25%
© 2007-2011 Microchip Technology Inc.
DS70289H-page 239