PIC16C5X
PIC16C54A
TABLE 14-2: EXTERNAL CLOCK TIMING REQUIREMENTS - PIC16C54A (CON’T)
AC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature
0°C ≤ TA ≤ +70°C (commercial)
–40°C ≤ TA ≤ +85°C (industrial)
–20°C ≤ TA ≤ +85°C (industrial - PIC16LV54A-02I)
–40°C ≤ TA ≤ +125°C (extended)
Operating Voltage VDD range is described in Section 14.1, Section 14.2 and Section 14.3.
Parameter
(1)
No.
Sym
Characteristic
Min Typ
Max Units
Conditions
XT osc mode
(2)
1
TOSC
External CLKIN Period
250
500
250
100
50
—
—
—
—
ns
ns
ns
ns
ns
µs
ns
ns
ns
ns
ns
ns
ns
µs
—
ns
ns
µs
ns
ns
ns
XT osc mode (PIC16LV54A)
HS osc mode (04)
HS osc mode (10)
HS osc mode (20)
LP osc mode
—
—
—
—
—
—
5.0
250
500
250
500
250
100
50
—
—
(2)
Oscillator Period
—
—
RC osc mode
—
—
RC osc mode (PIC16LV54A)
XT osc mode
—
10,000
—
—
XT osc mode (PIC16LV54A)
HS osc mode (04)
HS osc mode (10)
HS osc mode (20)
LP osc mode
—
250
250
250
200
—
—
—
5.0
—
—
(3)
2
3
TCY
Instruction Cycle Time
4/FOSC
—
TosL, TosH Clock in (OSC1) Low or High Time
85*
20*
2.0*
—
—
XT oscillator
HS oscillator
LP oscillator
XT oscillator
HS oscillator
LP oscillator
—
—
—
—
4
TosR, TosF Clock in (OSC1) Rise or Fall Time
—
25*
25*
50*
—
—
—
—
*
These parameters are characterized but not tested.
Note 1: Data in the Typical (“Typ”) column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only
and are not tested.
2: All specified values are based on characterization data for that particular oscillator type under standard operating condi-
tions 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.
3: Instruction cycle period (TCY) equals four times the input oscillator time base period.
DS30453B-page 112
Preliminary
1998 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
