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PIC16F1934-E/ML Datasheet(PDF) 135 Page - Microchip Technology

Part # PIC16F1934-E/ML
Description  28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology
PDF  418 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F1934-E/ML Datasheet(HTML) 135 Page - Microchip Technology

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© 2008 Microchip Technology Inc.
Preliminary
DS41364A-page 133
PIC16F193X/LF193X
TABLE 11-1:
ADC CLOCK PERIOD (TAD) VS. DEVICE OPERATING FREQUENCIES
FIGURE 11-2:
ANALOG-TO-DIGITAL CONVERSION TAD CYCLES
ADC Clock Period (TAD)
Device Frequency (FOSC)
Device Frequency (FOSC)
ADC
Clock Source
ADCS<2:0>
32 MHz
20 MHz
16 MHz
8 MHz
4 MHz
1 MHz
Fosc/2
000
62.5ns(2)
100 ns(2)
125 ns(2)
250 ns(2)
500 ns(2)
2.0
μs
Fosc/4
100
125 ns(2)
200 ns(2)
250 ns(2)
500 ns(2)
1.0
μs4.0 μs
Fosc/8
001
0.5
μs(2)
400 ns(2)
0.5
μs(2)
1.0
μs2.0 μs
8.0
μs(3)
Fosc/16
101
800 ns
800 ns
1.0
μs2.0 μs4.0 μs
16.0
μs(3)
Fosc/32
010
1.0
μs1.6 μs2.0 μs4.0 μs
8.0
μs(3)
32.0
μs(3)
Fosc/64
110
2.0
μs3.2 μs4.0 μs
8.0
μs(3)
16.0
μs(3)
64.0
μs(3)
FRC
x11
1.0-6.0
μs(1,4)
1.0-6.0
μs(1,4)
1.0-6.0
μs(1,4)
1.0-6.0
μs(1,4)
1.0-6.0
μs(1,4)
1.0-6.0
μs(1,4)
Legend:
Shaded cells are outside of recommended range.
Note
1:
The FRC source has a typical TAD time of 1.6
μs for VDD.
2:
These values violate the minimum required TAD time.
3:
For faster conversion times, the selection of another clock source is recommended.
4:
When the device frequency is greater than 1 MHz, the FRC clock source is only recommended if the conversion will be
performed during Sleep.
TAD1 TAD2 TAD3 TAD4 TAD5 TAD6 TAD7 TAD8
TAD11
Set GO bit
Holding capacitor is disconnected from analog input (typically 100 ns)
TAD9 TAD10
TCY - TAD
ADRESH:ADRESL is loaded, GO bit is cleared,
ADIF bit is set, holding capacitor is connected to analog input.
Conversion starts
b0
b9
b6
b5
b4
b3
b2
b1
b8
b7
On the following cycle:



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