Datasheet

PIC16C5X
DS30453E-page 86 Preliminary  1997-2013 Microchip Technology Inc.
13.6 Timing Diagrams and Specifications
FIGURE 13-2: EXTERNAL CLOCK TIMING - PIC16CR54A
TABLE 13-1: EXTERNAL CLOCK TIMING REQUIREMENTS - PIC16CR54A
AC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature 0°C  T
A  +70°C for commercial
–40°C  T
A  +85°C for industrial
–40°C  T
A  +125°C for extended
Param
No.
Symbol Characteristic Min Typ† Max Units Conditions
FOSC External CLKIN Frequency
(1)
DC — 4.0 MHz XT OSC mode
DC — 4.0 MHz HS
OSC mode (04)
DC — 10 MHz HS
OSC mode (10)
DC — 20 MHz HS
OSC mode (20)
DC — 200 kHz LP
OSC mode
Oscillator Frequency
(1)
DC — 4.0 MHz RC OSC mode
0.1 — 4.0 MHz XT
OSC mode
4.0 — 4.0 MHz HS
OSC mode (04)
4.0 — 10 MHz HS
OSC mode (10)
4.0 — 20 MHz HS
OSC mode (20)
5.0 — 200 kHz LP
OSC mode
* These parameters are characterized but not tested.
† Data in the Typical (“Typ”) column is based on characterization results at 25C. This data is for design guid-
ance only and is not tested.
Note 1: All specified values are based on 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.
When an external clock input is used, the “max” cycle time limit is “DC” (no clock) for all devices.
2: Instruction cycle period (T
CY) equals four times the input oscillator time base period.
OSC1
CLKOUT
Q4
Q1 Q2
Q3 Q4 Q1
133
44
2