PIC18LF452-I/L Microchip Technology, PIC18LF452-I/L Datasheet - Page 22
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PIC18LF452-I/L
Manufacturer Part Number
PIC18LF452-I/L
Description
IC MCU FLASH 16KX16 A/D 44PLCC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F242-ISO.pdf
(332 pages)
3.PIC18F242-ISO.pdf
(14 pages)
4.PIC18F242-ISO.pdf
(16 pages)
5.PIC18F242-ISO.pdf
(16 pages)
6.PIC18F242-ISO.pdf
(14 pages)
7.PIC18LF242-ISO.pdf
(36 pages)
Specifications of PIC18LF452-I/L
Core Size
8-Bit
Program Memory Size
32KB (16K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
34
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
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
Eeprom Memory Size
256Byte
Ram Memory Size
1.5KB
Cpu Speed
40MHz
No. Of Timers
4
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1536 B
Interface Type
MSSP, SPI, I2C, PSP, USART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
34
Number Of Timers
1 x 16 bit
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, ICE2000, ICE4000, DV164136, DM163022
Minimum Operating Temperature
- 40 C
On-chip Adc
8
Package
44PLCC
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Operating Supply Voltage
2.5|3.3|5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18LF452-I/L
Manufacturer:
Microchip Technology
Quantity:
10 000
PIC18FXX2/XX8
4.3
A configuration address may be read and output on
SDATA via the 4-bit command, ‘1001’. Configuration
data is read and written in a bytewise fashion, so it is
not necessary to merge two bytes into a word prior to a
compare. The result may then be immediately
compared to the appropriate configuration data in the
programmer’s memory for verification. Refer to
Section 4.1 for implementation details of reading
configuration data.
4.4
Data EEPROM is accessed one byte at a time via an
Address Pointer, EEADR, and a data latch, EEDATA.
Data EEPROM is read by loading EEADR with the
desired memory location and initiating a memory read
by appropriately configuring the EECON1 register. The
data will be loaded into EEDATA, where it may be seri-
ally output on SDATA via the 4-bit command, ‘0010’
(shift out data holding register). A delay of P6 must be
introduced after the falling edge of the 8th SCLK of the
operand to allow SDATA to transition from an input to
an output. During this time, SCLK must be held low
(see Figure 4-4).
The command sequence to read a single byte of data
is shown in Figure 4-2.
TABLE 4-2:
DS39576C-page 22
Step 1: Direct access to data EEPROM.
Step 2: Set the data EEPROM Address Pointer.
Step 3: Initiate a memory read.
Step 4: Load data into the serial data holding register.
Note 1: The <LSB> is undefined. The <MSB> is the data.
Command
0000
0000
0000
0000
0000
0000
0000
0000
0000
0010
4-Bit
Verify Configuration Bits
Read Data EEPROM Memory
9E A6
9C A6
0E <Addr>
6E A9
OE <AddrH>
6E AA
80 A6
50 A8
6E F5
<LSB><MSB>
READ DATA EEPROM MEMORY
Data Payload
BCF EECON1, EEPGD
BCF EECON1, CFGS
MOVLW <Addr>
MOVWF EEADR
MOVLW <AddrH>
MOVWF EEADRH
BSF EECON1, RD
MOVF EEDATA, W, 0
MOVWF TABLAT
Shift Out Data
(1)
FIGURE 4-3:
Core Instruction
No
Move to TABLAT
READ DATA EEPROM
FLOW
Shift Out Data
2010 Microchip Technology Inc.
Address
Done?
Read
Byte
Start
Done
Set
Yes