PIC16F688

Manufacturer Part NumberPIC16F688
ManufacturerMicrochip Technology Inc.
PIC16F688 datasheet
 


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TABLE 14-4:
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER
AND BROWN-OUT RESET PARAMETERS
Standard Operating Conditions (unless otherwise stated)
-40°C ≤ T
Operating Temperature
A
Param
Sym
Characteristic
No.
30
T
L
MCLR Pulse Width (low)
MC
31
T
Watchdog Timer Time-out
WDT
Period (No Prescaler)
32
T
Oscillation Start-up Timer
OST
(1, 2)
Period
33*
T
Power-up Timer Period
PWRT
34*
T
I/O High-impedance from
IOZ
MCLR Low or Watchdog Timer
Reset
35
V
Brown-out Reset Voltage
BOR
36*
V
Brown-out Reset Hysteresis
HYST
37*
T
Brown-out Reset Minimum
BOR
Detection Period
*
These parameters are characterized but not tested.
† Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance
only and are not tested.
Note 1:
Instruction cycle period (T
CY
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 oper-
ation and/or higher than expected current consumption. All devices are tested to operate at “min” values
with an external clock applied to the OSC1 pin. When an external clock input is used, the “max” cycle time
limit is “DC” (no clock) for all devices.
2:
By design.
3:
Period of the slower clock.
4:
To ensure these voltage tolerances, V
possible. 0.1 μF and 0.01 μF values in parallel are recommended.
© 2007 Microchip Technology Inc.
≤ +125°C
Min
Typ†
Max Units
2
5
10
16
29
10
16
31
1024
40
65
140
2.0
2.0
2.2
50
100
) equals four times the input oscillator time base period. All specified values
and V
must be capacitively decoupled as close to the device as
DD
SS
PIC16F688
Conditions
μs
V
= 5V, -40°C to +85°C
DD
μs
V
= 5V
DD
ms
V
= 5V, -40°C to +85°C
DD
ms
V
= 5V
DD
T
(NOTE 3)
OSC
ms
μs
V
(NOTE 4)
mV
μs
≤ V
V
DD
BOR
DS41203D-page 157