PIC16F84-04I/P Microchip Technology, PIC16F84-04I/P Datasheet - Page 428
![IC MCU FLASH 1KX14 EE 18DIP](/photos/6/76/67657/18-dip_300mil__sml.jpg)
PIC16F84-04I/P
Manufacturer Part Number
PIC16F84-04I/P
Description
IC MCU FLASH 1KX14 EE 18DIP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F688T-ISL.pdf
(688 pages)
2.PIC16LF84A-04P.pdf
(125 pages)
3.PIC16LF84A-04P.pdf
(4 pages)
Specifications of PIC16F84-04I/P
Core Size
8-Bit
Program Memory Size
1.75KB (1K x 14)
Core Processor
PIC
Speed
4MHz
Peripherals
POR, WDT
Number Of I /o
13
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
68 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
18-DIP (0.300", 7.62mm)
Controller Family/series
PIC16F
No. Of I/o's
13
Eeprom Memory Size
64Byte
Ram Memory Size
68Byte
Cpu Speed
4MHz
No. Of Timers
1
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
68 B
Maximum Clock Frequency
4 MHz
Number Of Programmable I/os
13
Number Of Timers
1
Operating Supply Voltage
2 V to 6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
ICE2000
Minimum Operating Temperature
- 40 C
Data Rom Size
64 B
Height
3.3 mm
Length
22.86 mm
Supply Voltage (max)
6 V
Supply Voltage (min)
2 V
Width
6.35 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DVA16XP180 - ADAPTER DEVICE FOR MPLAB-ICEAC164010 - MODULE SKT PROMATEII DIP/SOIC
Data Converters
-
Connectivity
-
Lead Free Status / Rohs Status
Details
- Current page: 428 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
23.4
DS31023A-page 23-6
A/D Acquisition Requirements
For the A/D converter to meet its specified accuracy, the charge holding capacitor (C
be allowed to fully charge to the input channel voltage level. The analog input model is shown in
Figure
directly affect the time required to charge the capacitor C
ance varies over the device voltage (V
ance for analog sources is 10 k . As the impedance is decreased, the acquisition time may be
decreased. After the analog input channel is selected (changed) this acquisition must be done
before the conversion can be started.
To calculate the minimum acquisition time,
that 1/2 LSb error is used (1024 steps for the A/D). The 1/2 LSb error is the maximum error
allowed for the A/D to meet its specified resolution.
Equation 23-1:
Equation 23-2:
Example 23-1
This calculation is based on the following application system assumptions.
C
Rs
Conversion Error
V
Temperature
V
Example 23-1:
T
T
Temperature coefficient is only required for temperatures > 25 C.
T
T
T
DD
HOLD
HOLD
V
or
Tc
ACQ
ACQ
ACQ
C
ACQ
HOLD
=
=
23-3. The source impedance (R
=
=
=
=
Amplifier Settling Time +
Holding Capacitor Charging Time +
Temperature Coefficient
T
=
=
T
2 s + Tc + [(Temp - 25 C)(0.05 s/ C)]
-C
-120 pF (1 k + 7 k + 10 k ) ln(0.0004885)
-120 pF (18 k ) ln(0.0004885)
-2.16 s (-7.6241)
16.47 s
2 s + 16.47 s + [(50 C - 25 C)(0.05 s/ C)]
18.47 s + 1.25 s
19.72 s
shows the calculation of the minimum required acquisition time T
AMP
AMP
HOLD
Acquisition Time
A/D Minimum Charging Time
(V
-(120 pF)(1 k + R
Calculating the Minimum Required Acquisition Time (Case 1)
+ T
+ T
REF
(R
=
=
=
=
=
C
C
- (V
IC
+ T
+ T
+ R
Preliminary
120 pF
10 k
1/2 LSb
5V
50 C (system max.)
0V @ time = 0
REF
COFF
COFF
SS
/2048)) • (1 - e
+ R
Rss = 7 k
SS
S
DD
) ln(1/2047)
S
+ R
),
) and the internal sampling switch (R
Equation 23-1
Figure
S
) ln(1/2047)
(-Tc/C
23-3. The maximum recommended imped-
(see graph in
HOLD
HOLD
may be used. This equation assumes
(R
IC
. The sampling switch (R
+ R
SS
Figure
1997 Microchip Technology Inc.
+ R
S
))
)
23-3)
ACQ
SS
) impedance
.
HOLD
SS
) imped-
) must
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