PIC14000T-04/SO Microchip Technology, PIC14000T-04/SO Datasheet - Page 61
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PIC14000T-04/SO
Manufacturer Part Number
PIC14000T-04/SO
Description
IC MCU OTP 4KX14 A/D 28SOIC
Manufacturer
Microchip Technology
Series
PIC® 14r
Datasheets
1.PIC16LF627A-IP.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC14000-04SO.pdf
(153 pages)
4.PIC14000-04SO.pdf
(5 pages)
Specifications of PIC14000T-04/SO
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Connectivity
I²C
Peripherals
POR, Temp Sensor, WDT
Number Of I /o
20
Program Memory Size
7KB (4K x 14)
Program Memory Type
OTP
Ram Size
192 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 6 V
Data Converters
Slope A/D
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
28-SOIC (7.5mm Width)
Processor Series
PIC14000
Core
PIC
Data Bus Width
8 bit
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
+ 70 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ICE2000
Minimum Operating Temperature
0 C
On-chip Adc
14 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC14000T-04/SO
Manufacturer:
MICROCHIP
Quantity:
12 000
8.6
Four configuration bits (ADCON1<7:4>) are used to
control a programmable current source for generating
the ramp voltage to the A/D comparator. It allows com-
pensation for full-scale input voltage, clock frequency
and CDAC capacitor tolerance variations. The current
values range from 0 to 33.75 A (nominal) in 2.25 A
increments. The intermediate values of the current
source are as follows:
TABLE 8-2:
1996 Microchip Technology Inc.
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
ADCON1<7:4>
Programmable Current Source
0
1
0
0
0
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
PROGRAMMABLE CURRENT
SOURCE SELECTION
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
OFF - all current
sources disabled
2.25 A
4.5 A
6.75 A
9 A
11.25 A
13.5 A
15.75 A
18 A
20.25 A
22.5 A
24.75 A
27 A
29.25 A
31.5 A
33.75 A
Current Source
Output
Preliminary
The programmable current source output is tied to the
CDAC pin and is used to charge an external capacitor
to generate the ramp voltage for the A/D comparator.
(Refer to Figure 8-1.) This capacitor should have a low
voltage-coefficient as found in teflon, polypropylene, or
polystyrene capacitors, for optimum results. The
capacitor must be discharged at the beginning of each
conversion cycle by asserting ADRST (ADCON0<1>)
for at least 200
Asserting ADRST disables the current sources inter-
nally. Current flow begins when ADRST is cleared.
s to allow a complete discharge.
PIC14000
DS40122B-page 61