PIC18C452-I/L Microchip Technology, PIC18C452-I/L Datasheet - Page 44
![IC MCU OTP 16KX16 A/D 44PLCC](/photos/6/63/66325/150-44-plcc_sml.jpg)
PIC18C452-I/L
Manufacturer Part Number
PIC18C452-I/L
Description
IC MCU OTP 16KX16 A/D 44PLCC
Manufacturer
Microchip Technology
Series
PIC® 18Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16C770-ISO.pdf
(8 pages)
3.PIC18C242-ISO.pdf
(305 pages)
4.PIC18C242-ISO.pdf
(12 pages)
Specifications of PIC18C452-I/L
Core Size
8-Bit
Program Memory Size
32KB (16K 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
33
Program Memory Type
OTP
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-PLCC
Controller Family/series
PIC18
No. Of I/o's
34
Ram Memory Size
1.5KB
Cpu Speed
40MHz
No. Of Timers
4
Package
44PLCC
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Operating Supply Voltage
5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
34
Interface Type
I2C/SPI/USART
On-chip Adc
8-chx10-bit
Number Of Timers
4
Processor Series
PIC18C
Core
PIC
Data Ram Size
1.5 KB
Maximum Clock Frequency
40 MHz
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
ICE2000, DM163022, DV164136
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3DB18C452 - BOARD DAUGHTER ICEPIC3AC164309 - MODULE SKT FOR PM3 44PLCC444-1001 - DEMO BOARD FOR PICMICRO MCUDVA16XL441 - ADAPTER DEVICE ICE 44PLCCDV007003 - PROGRAMMER UNIVERSAL PROMATE II
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18C452-I/L
Manufacturer:
MICROCHIP
Quantity:
58
Company:
Part Number:
PIC18C452-I/L
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16C770-ISO PDF datasheet #2
- PIC18C242-ISO PDF datasheet #3
- PIC18C242-ISO PDF datasheet #4
- Current page: 44 of 305
- Download datasheet (6Mb)
PIC18CXX2
4.9
The data memory is implemented as static RAM. Each
register in the data memory has a 12-bit address,
allowing up to 4096 bytes of data memory. Figure 4-6
and Figure 4-7 show the data memory organization for
the PIC18CXX2 devices.
The data memory map is divided into as many as 16
banks that contain 256 bytes each. The lower 4 bits of
the Bank Select Register (BSR<3:0>) select which
bank will be accessed. The upper 4 bits for the BSR are
not implemented.
The data memory contains Special Function Registers
(SFR) and General Purpose Registers (GPR). The
SFRs are used for control and status of the controller
and peripheral functions, while GPRs are used for data
storage and scratch pad operations in the user’s appli-
cation. The SFRs start at the last location of Bank 15
(0xFFF) and extend downwards. Any remaining space
beyond the SFRs in the Bank may be implemented as
GPRs. GPRs start at the first location of Bank 0 and
grow upwards. Any read of an unimplemented location
will read as ’0’s.
The entire data memory may be accessed directly, or
indirectly. Direct addressing may require the use of the
BSR register. Indirect addressing requires the use of a
File Select Register (FSRn) and corresponding Indirect
File Operand (INDFn). Each FSR holds a 12-bit
address value that can be used to access any location
in the Data Memory map without banking.
The instruction set and architecture allow operations
across all banks. This may be accomplished by indirect
addressing or by the use of the MOVFF instruction. The
MOVFF instruction is a two-word/two-cycle instruction
that moves a value from one register to another.
To ensure that commonly used registers (SFRs and
select GPRs) can be accessed in a single cycle,
regardless of the current BSR values, an Access Bank
is implemented. A segment of Bank 0 and a segment of
Bank 15 comprise the Access RAM. Section 4.10 pro-
vides a detailed description of the Access RAM.
DS39026C-page 42
Data Memory Organization
4.9.1
The register file can be accessed either directly, or indi-
rectly. Indirect addressing operates using the File
Select Registers (FSRn) and corresponding Indirect
File Operand (INDFn). The operation of indirect
addressing is shown in Section 4.12.
Enhanced MCU devices may have banked memory in
the GPR area. GPRs are not initialized by a Power-on
Reset and are unchanged on all other RESETS.
Data RAM is available for use as GPR registers by all
instructions. The top half of bank 15 (0xF80 to 0xFFF)
contains SFRs. All other banks of data memory contain
GPR registers, starting with bank 0.
4.9.2
The Special Function Registers (SFRs) are registers
used by the CPU and Peripheral Modules for control-
ling the desired operation of the device. These regis-
ters are implemented as static RAM. A list of these
registers is given in Table 4-1 and Table 4-2.
The SFRs can be classified into two sets; those asso-
ciated with the “core” function and those related to the
peripheral functions. Those registers related to the
“core” are described in this section, while those related
to the operation of the peripheral features are
described in the section of that peripheral feature.
The SFRs are typically distributed among the peripher-
als whose functions they control.
The unused SFR locations will be unimplemented and
read as '0's. See Table 4-1 for addresses for the SFRs.
GENERAL PURPOSE REGISTER
FILE
SPECIAL FUNCTION REGISTERS
2001 Microchip Technology Inc.
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