PIC18F4423-I/PT Microchip Technology, PIC18F4423-I/PT Datasheet - Page 12
![IC PIC MCU FLASH 8KX16 44TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC18F4423-I/PT
Manufacturer Part Number
PIC18F4423-I/PT
Description
IC PIC MCU FLASH 8KX16 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F2221-ISO.pdf
(46 pages)
2.PIC18F2423-ISP.pdf
(54 pages)
3.PIC18F2423-ISP.pdf
(8 pages)
4.PIC18F2423-ISP.pdf
(34 pages)
5.PIC18F2523-ISO.pdf
(392 pages)
Specifications of PIC18F4423-I/PT
Program Memory Type
FLASH
Program Memory Size
16KB (8K x 16)
Package / Case
44-TQFP, 44-VQFP
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
36
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 13x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
EUSART/I2C/MSSP/SPI
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
36
Number Of Timers
4
Operating Supply Voltage
2 V to 5.5 V
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, DM163022, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
13-ch x 12-bit
Controller Family/series
PIC18
No. Of I/o's
36
Eeprom Memory Size
256Byte
Ram Memory Size
768Byte
Cpu Speed
40MHz
Rohs Compliant
Yes
Package
44TQFP
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4423-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC18F4423-I/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
PIC18F2423/2523/4423/4523
TABLE 3-3:
FIGURE 3-3:
DS39759A-page 12
Step 1: Direct access to code memory and enable writes.
Step 2: Point to first row in code memory.
Step 3: Enable erase and erase single row.
Step 4: Repeat step 3, with Address Pointer incremented by 64 until all rows are erased.
Command
0000
0000
0000
0000
0000
0000
0000
0000
0000
4-Bit
8E A6
9C A6
84 A6
6A F8
6A F7
6A F6
88 A6
82 A6
00 00
ERASE CODE MEMORY CODE SEQUENCE
Data Payload
SINGLE ROW ERASE CODE MEMORY FLOW
Addr = Addr + 64
BSF
BCF
BSF
CLRF
CLRF
CLRF
BSF
BSF
NOP – hold PGC high for time P9 and low for time P10.
EECON1, EEPGD
EECON1, CFGS
EECON1, WREN
TBLPTRU
TBLPTRH
TBLPTRL
EECON1, FREE
EECON1, WR
No
Start Erase Sequence
and Hold PGC High
Hold PGC Low
Row Erases
for Time P10
Core Instruction
for Time P9
Device for
Configure
done?
Start
Done
rows
All
Yes
Addr = 0
© 2005 Microchip Technology Inc.