PIC16F1507-I/SO Microchip Technology, PIC16F1507-I/SO Datasheet - Page 179
![3.5KB Flash, 128B RAM, 18 I/O, CLC, CWG, DDS, 10-bit ADC 20 SOIC .300in TUBE](/photos/16/12/161297/soic20_sml.jpg)
PIC16F1507-I/SO
Manufacturer Part Number
PIC16F1507-I/SO
Description
3.5KB Flash, 128B RAM, 18 I/O, CLC, CWG, DDS, 10-bit ADC 20 SOIC .300in TUBE
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F1507-EML.pdf
(266 pages)
2.PIC16F1507-EML.pdf
(26 pages)
3.PIC16F1507-EML.pdf
(40 pages)
Specifications of PIC16F1507-I/SO
Processor Series
PIC16
Core
PIC16F
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
3.5 KB
Data Ram Size
128 B
Interface Type
ICSP
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
18
Number Of Timers
3
Operating Supply Voltage
2.3 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
SOIC-20
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Supply Current (max)
30 uA
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
-
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
17
Eeprom Size
-
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.3 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC16F1507-I/SO
Manufacturer:
MICROCHI
Quantity:
20 000
- Current page: 179 of 266
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PIC16(L)F1507
21.1
The NCOx operates by repeatedly adding a fixed value
to an accumulator. Additions occur at the input clock
rate. The accumulator will overflow with a carry
periodically, which is the raw NCOx output. This
effectively reduces the input clock by the ratio of the
addition value to the maximum accumulator value. See
Equation
The NCOx output can be further modified by stretching
the pulse or toggling a flip-flop. The modified NCOx
output is then distributed internally to other peripherals
and optionally output to a pin. The accumulator overflow
also generates an interrupt.
The NCOx period changes in discrete steps to create an
average frequency. This output depends on the ability of
the receiving circuit (i.e., CWG or external resonant
converter circuitry) to average the NCOx output to
reduce uncertainty.
21.1.1
Clock sources available to the NCOx include:
• HFINTOSC
• F
• LCxOUT
• CLKIN pin
The NCOx clock source is selected by configuring the
NxCKS<2:0> bits in the NCOxCLK register.
21.1.2
The accumulator is a 20-bit register. Read and write
access to the Accumulator is available through three
registers:
• NCOxACCL
• NCOxACCH
• NCOxACCU
EQUATION 21-1:
DS41586A-page 179
OSC
NCOx OPERATION
21-1.
NCOx CLOCK SOURCES
ACCUMULATOR
F
OVERFLOW
n = Accumulator width in bits
=
NCO Clock Frequency Increment Value
--------------------------------------------------------------------------------------------------------------- -
Preliminary
21.1.3
The NCOx Adder is a full adder, which operates
independently from the system clock. The addition of
the previous result and the increment value replaces
the accumulator value on the rising edge of each input
clock.
21.1.4
The Increment value is stored in two 8-bit registers
making up a 16-bit increment. In order of LSB to MSB
they are:
• NCOxINCL
• NCOxINCH
Both of the registers are readable and writeable. The
Increment registers are double-buffered to allow for
value changes to be made without first disabling the
NCOx module.
The buffer loads are immediate when the module is dis-
abled. Writing to the NCOxINCH register first is neces-
sary because then the buffer is loaded synchronously
with the NCOx operation after the write is executed on
the NCOxINCL register.
Note: The increment buffer registers are not
2
n
user-accessible.
ADDER
INCREMENT REGISTERS
2011 Microchip Technology Inc.
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