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16F628 Datasheet(PDF) 143 Page - Microchip Technology

Part # 16F628
Description  FLASH-Based 8-Bit CMOS Microcontrollers
PDF  168 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

16F628 Datasheet(HTML) 143 Page - Microchip Technology

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 2002 Microchip Technology Inc.
Preliminary
DS40044A-page 141
PIC16F627A/628A/648A
TABLE 17-5:
PRECISION INTERNAL OSCILLATOR PARAMETERS
FIGURE 17-5:
CLKOUT AND I/O TIMING
TABLE 17-6:
CLKOUT AND I/O TIMING REQUIREMENTS
Parameter
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
F10
F
IOSC
Oscillator Center frequency
—4—
MHz
F13
∆IOSC
Oscillator Stability (jitter)
——
±1%
V
DD = 3.5 V, 25
°C
——
±2
%
2.0 V
≤ VDD ≤ 5.5V
0
°C ≤ TA ≤ +85°C
——
±5
%
2.0 V
≤ VDD ≤ 5.5V
-40
°C ≤ TA ≤ +85°C (IND)
-40
°C ≤ TA ≤ +125°C (EXT)
F14
T
IOSCST Oscillator Wake-up from
SLEEP start-up time
—6
TBD
µsVDD = 2.0V, -40°C to +85°C
—4
TBD
µsVDD = 3.0V, -40°C to +85°C
—3
TBD
µsVDD = 5.0V, -40°C to +85°C
Parameter
No.
Sym
Characteristic
Min
Typ†
Max
Units
10
TosH2ckL OSC1
↑ to CLKOUT↓
PIC16F62X
—
75
200*
ns
10A
PIC16LF62X
—
—
400*
ns
11
TosH2ckH OSC1
↑ to CLKOUT↑
PIC16F62X
—
75
200*
ns
11A
PIC16LF62X
—
—
400*
ns
12
TckR
CLKOUT rise time
PIC16F62X
—
35
100*
ns
12A
PIC16LF62X
—
—
200*
ns
13
TckF
CLKOUT fall time
PIC16F62X
—
35
100*
ns
13A
PIC16LF62X
—
—
200*
ns
14
TckL2ioV
CLKOUT
↓ to Port out valid
—
—
20*
ns
15
TioV2ckH Port in valid before
PIC16F62X
Tosc+200 ns*
—
—
ns
18
TosH2ioI
OSC1
↑ (Q2 cycle) to Port input invalid
(I/O in hold time)
100*
200*
——
ns
* These parameters are characterized but not tested.
† Data in “Typ” column is at 5.0V, 25
°C unless otherwise stated. These parameters are for design guidance
only and are not tested.
OSC1
CLKOUT
I/O PIN
(INPUT)
I/O PIN
(OUTPUT)
Q4
Q1
Q2
Q3
10
13
14
17
20, 21
22
23
19
18
15
11
12
16
OLD VALUE
NEW VALUE



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