PIC18C242-I/SP Microchip Technology, PIC18C242-I/SP Datasheet - Page 264

• Manufacturer Part Number: PIC18C242-I/SP
• Description: IC MCU OTP 8KX16 A/D 28DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Cr

Specifications of PIC18C242-I/SP

• Core Size: 8-Bit
• Program Memory Size: 16KB (8K x 16)
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Number Of I /o: 22
• Program Memory Type: OTP
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Controller Family/series: PIC18
• No. Of I/o's: 23
• Ram Memory Size: 512Byte
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Processor Series: PIC18C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: MSSP, SPI, I2C, USART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 23
• Number Of Timers: 1 x 16 bit
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: ICE2000, DM163022, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 5 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: I3DB18C452 - BOARD DAUGHTER ICEPIC3
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

PIC18CXX2
FIGURE 21-22:
TABLE 21-22: A/D CONVERSION REQUIREMENTS
DS39026C-page 262
Param
130
131
132
135
136
Note 1: ADRES register may be read on the following T
No.
A/D DATA
2: See Section 16.0 for minimum conditions, when input voltage has changed more than 1 LSb.
3: The time for the holding capacitor to acquire the “New” input voltage, when the voltage changes full scale
4: On the next Q4 cycle of the device clock.
5: The time of the A/D clock period is dependent on the device frequency and the T
Note 1: If the A/D clock source is selected as RC, a time of T
SAMPLE
A/D CLK
ADRES
T
T
T
T
T
Symbol
BSF ADCON0, GO
AD
CNV
ACQ
SWC
AMP
after the conversion (AV
50 .
ADIF
GO
2: This is a minimal RC delay (typically 100 ns), which also disconnects the holding capacitor from the analog input.
Q4
This allows the SLEEP instruction to be executed.
A/D clock period
Conversion time
(not including acquisition time) (Note 1)
Acquisition time (Note 3)
Switching Time from convert
Amplifier settling time (Note 2)
132
A/D CONVERSION TIMING
Note 2
Characteristic
DD
9
to AV
PIC18CXXX
PIC18LCXXX
PIC18CXXX
PIC18LCXXX
SS
8
, or AV
OLD_DATA
7
sample
SS
to AV
. . .
SAMPLING STOPPED
CY
CY
is added before the A/D clock starts.
DD
cycle.
. . .
131
130
). The source impedance (R
Min
1.6
3.0
2.0
3.0
11
15
10
—
1
2
(Note 4)
20
20
Max
6.0
9.0
12
—
—
—
(5)
(5)
1
Units
T
AD
s
s
s
s
s
s
s
0
T
T
A/D RC mode
A/D RC mode
-40 C
This may be used if the
“new” input voltage has not
changed by more than 1 LSb
(i.e., 5 mV @ 5.12V) from
the last sampled voltage (as
stated on C
2001 Microchip Technology Inc.
OSC
OSC
0 C
S
AD
) on the input channels is
based, V
based, V
clock divider.
NEW_DATA
DONE
Temp
Temp
Conditions
HOLD
T
REF
REF
CY
125 C
125 C
).
full range
3.0V