PIC18LF1330-I/SO Microchip Technology, PIC18LF1330-I/SO Datasheet - Page 53
![IC PIC MCU FLASH 4KX16 18SOIC](/photos/6/76/67656/150-18-soic_sml.jpg)
PIC18LF1330-I/SO
Manufacturer Part Number
PIC18LF1330-I/SO
Description
IC PIC MCU FLASH 4KX16 18SOIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.AC162078.pdf
(318 pages)
3.PIC18F1230-ISO.pdf
(6 pages)
4.PIC18F1230-ISO.pdf
(12 pages)
5.PIC18F1230-ISO.pdf
(4 pages)
6.PIC18F1230-IP.pdf
(312 pages)
Specifications of PIC18LF1330-I/SO
Core Size
8-Bit
Program Memory Size
8KB (4K x 16)
Oscillator Type
Internal
Core Processor
PIC
Speed
40MHz
Connectivity
UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
16
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 4x10b
Operating Temperature
-40°C ~ 85°C
Package / Case
18-SOIC (7.5mm Width)
Controller Family/series
PIC18
No. Of I/o's
16
Eeprom Memory Size
128Byte
Ram Memory Size
256Byte
Cpu Speed
40MHz
No.
RoHS Compliant
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
EUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
16
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 4 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC18LF1330-I/SO
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC16F616T-ISL PDF datasheet
- AC162078 PDF datasheet #2
- PIC18F1230-ISO PDF datasheet #3
- PIC18F1230-ISO PDF datasheet #4
- PIC18F1230-ISO PDF datasheet #5
- PIC18F1230-IP PDF datasheet #6
- Current page: 53 of 312
- Download datasheet (6Mb)
5.3
The data memory in PIC18 devices is implemented as
static RAM. Each register in the data memory has a
12-bit address, allowing up to 4096 bytes of data
memory. The memory space is divided into as many as
16 banks that contain 256 bytes each; PIC18F1230/
1330 devices implement 1 bank. Figure 5-5 shows the
data memory organization for the PIC18F1230/1330
devices.
The data memory contains Special Function Registers
(SFRs) and General Purpose Registers (GPRs). The
SFRs are used for control and status of the controller
and peripheral functions, while GPRs are used for data
storage and scratchpad operations in the user’s
application. Any read of an unimplemented location will
read as ‘0’s.
The instruction set and architecture allow operations
across all banks. The entire data memory may be
accessed by Direct, Indirect or Indexed Addressing
modes. Addressing modes are discussed later in this
subsection.
To ensure that commonly used registers (SFRs and
select GPRs) can be accessed in a single cycle, PIC18
devices implement an Access Bank. This is a 256-byte
memory space that provides fast access to SFRs and
the lower portion of GPR Bank 0 without using the
BSR. Section 5.3.2 “Access Bank” provides a
detailed description of the Access RAM.
© 2007 Microchip Technology Inc.
Note:
Data Memory Organization
The operation of some aspects of data
memory are changed when the PIC18
extended instruction set is enabled. See
Section 5.5 “Data Memory and the
Extended Instruction Set” for more
information.
Advance Information
5.3.1
Large areas of data memory require an efficient
addressing scheme to make rapid access to any
address possible. Ideally, this means that an entire
address does not need to be provided for each read or
write
accomplished with a RAM banking scheme. This
divides the memory space into 16 contiguous banks of
256 bytes. Depending on the instruction, each location
can be addressed directly by its full 12-bit address, or
an 8-bit low-order address and a 4-bit Bank Pointer.
Most instructions in the PIC18 instruction set make use
of the Bank Pointer, known as the Bank Select Register
(BSR). This SFR holds the four Most Significant bits of
a location’s address; the instruction itself includes the
eight Least Significant bits. Only the four lower bits of
the BSR are implemented (BSR3:BSR0). The upper
four bits are unused; they will always read ‘0’ and can-
not be written to. The BSR can be loaded directly by
using the MOVLB instruction.
The value of the BSR indicates the bank in data
memory. The 8 bits in the instruction show the location
in the bank and can be thought of as an offset from the
bank’s lower boundary. The relationship between the
BSR’s value and the bank division in data memory is
shown in Figure 5-6.
Since up to 16 registers may share the same low-order
address, the user must always be careful to ensure that
the proper bank is selected before performing a data
read or write. For example, writing what should be
program data to an 8-bit address of F9h, while the BSR
is 0Fh, will end up resetting the program counter.
While any bank can be selected, only those banks that
are actually implemented can be read or written to.
Writes to unimplemented banks are ignored, while
reads from unimplemented banks will return ‘0’s. Even
so, the STATUS register will still be affected as if the
operation was successful. The data memory map in
Figure 5-5 indicates which banks are implemented.
In the core PIC18 instruction set, only the MOVFF
instruction fully specifies the 12-bit address of the
source and target registers. This instruction ignores the
BSR completely when it executes. All other instructions
include only the low-order address as an operand and
must use either the BSR or the Access Bank to locate
their target registers.
operation.
PIC18F1230/1330
BANK SELECT REGISTER (BSR)
For
PIC18
devices,
DS39758C-page 51
this
is
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