PIC14000-04I/SS Microchip Technology, PIC14000-04I/SS Datasheet - Page 60

• Manufacturer Part Number: PIC14000-04I/SS
• Description: IC, 8BIT MCU, PIC14, 4MHZ, SSOP-28
• Manufacturer: Microchip Technology

Specifications of PIC14000-04I/SS

• Controller Family/series: PIC14
• No. Of I/o's: 22
• Ram Memory Size: 192Byte
• Cpu Speed: 4MHz
• No. Of Timers: 2
• Interface: I2C
• Digital Ic Case Style: SSOP
• Core Size: 8 Bit
• Program Memory Size: 4096 X 14
• Embedded Interface Type: I2C
• Rohs Compliant: Yes
• Processor Series: PIC14000
• Core: PIC
• Data Bus Width: 8 bit
• Program Memory Type: EPROM
• Data Ram Size: 192 B
• Interface Type: SPI, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 22
• Number Of Timers: 1
• Operating Supply Voltage: 2.7 V to 6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Development Tools By Supplier: ICE2000
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC14000
8.4
The PIC14000 includes a high gain comparator for
A/D conversions. The positive input terminal of the A/D
comparator is connected to the output of an analog
mux through an RC low-pass filter. The nominal
time-constant for the RC filter is 3.5 s. The negative
input terminal is connected to the external 0.1 F (nom-
inal) ramp capacitor.
TABLE 8-1:
DS40122B-page 60
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
A/D Comparator
A/D CHANNEL ASSIGNMENT
ADCON0(7:4)
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Preliminary
RA0/AN0 pin
RA1/AN1 pin
RA2/AN2 pin
RA3/AN3 pin
Bandgap reference voltage
Slope reference SREFHI
Slope reference SREFLO
Internal temperature sensor
Programmable reference A output
Programmable reference B output
RD4/AN4 pin
RD5/AN5 pin
RD6/AN6 pin
RD7/AN7 pin
Reserved
Reserved
8.5
A total of 16 channels are internally multiplexed to the
single
configuration bits (ADCON0<7:4>) select the channel
to be converted. Refer to Table 8-1 for channel assign-
ments.
A/D
Analog Mux
A/D Channel
comparator
1996 Microchip Technology Inc.
positive
input.
Four