PIC17C756A MICROCHIP [Microchip Technology], PIC17C756A Datasheet - Page 249

• Manufacturer Part Number: PIC17C756A
• Description: High-Performance 8-bit CMOS EPROM Microcontrollers with 10-bit A/D
• Manufacturer: MICROCHIP [Microchip Technology]

20.4
FIGURE 20-6:
TABLE 20-1:
Note 1: Instruction cycle period (T
Param
2000 Microchip Technology Inc.
No.
†
1
2
3
4
† In EC and RC modes only.
OSC2 †
OSC1
Timing Diagrams and Specifications
TosR,
Data in “Typ” column is at 5V, 25°C unless otherwise stated.
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 external clock applied to the OSC1/CLKIN pin.
When an external clock input is used, the “max.” cycle time limit is “DC” (no clock) for all devices.
F
TosL,
TosH
Sym
T
TosF
T
OSC
OSC
CY
EXTERNAL CLOCK TIMING REQUIREMENTS
External CLKIN
Frequency (Note 1)
Oscillator Frequency
(Note 1)
External CLKIN Period
(Note 1)
Oscillator Period
(Note 1)
Instruction Cycle Time
(Note 1)
Clock in (OSC1)
High or Low Time
Clock in (OSC1)
Rise or Fall Time
EXTERNAL CLOCK TIMING
Q4
Characteristic
CY
) equals four times the input oscillator time base period. All specified values are based on
Q1
121.2
62.5
30.3
62.5
30.3
Min
125
250
125
500
DC
DC
DC
DC
DC
10
—
2
2
2
1
4/F
Typ†
Q2
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
OSC
1,000
1,000
1,000
2
Max
DC
16
33
16
33
—
—
—
—
—
—
8
4
8
2
5
Units
Q3
3
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
EC osc mode - 08 devices (8 MHz devices)
RC osc mode
XT osc mode - 08 devices (8 MHz devices)
LF osc mode
EC osc mode - 08 devices (8 MHz devices)
RC osc mode
XT osc mode - 08 devices (8 MHz devices)
LF osc mode
EC oscillator
EC oscillator
Q4
3
PIC17C7XX
- 16 devices (16 MHz devices)
- 33 devices (33 MHz devices)
- 16 devices (16 MHz devices)
- 33 devices (33 MHz devices)
- 16 devices (16 MHz devices)
- 33 devices (33 MHz devices)
- 16 devices (16 MHz devices)
- 33 devices (33 MHz devices)
Conditions
4
DS30289B-page 249
Q1
4