PIC18F4423-E/ML Microchip Technology, PIC18F4423-E/ML Datasheet - Page 13
![16KB, Flash, 768bytes-RAM, 36I/O, 8-bit Family,nanoWatt 44 QFN 8x8x0.9mm TUBE](/photos/6/81/68122/150-44-qfn_sml.jpg)
PIC18F4423-E/ML
Manufacturer Part Number
PIC18F4423-E/ML
Description
16KB, Flash, 768bytes-RAM, 36I/O, 8-bit Family,nanoWatt 44 QFN 8x8x0.9mm TUBE
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)
Specifications of PIC18F4423-E/ML
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
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
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 ~ 125°C
Package / Case
44-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FIGURE 1-2:
© 2009 Microchip Technology Inc.
OSC1
OSC2
T1OSI
T1OSO
MCLR
V
Comparator
Note 1:
DD
Instruction Bus <16>
Table Pointer<21>
Program Memory
,
HLVD
Address Latch
BOR
(16/32 Kbytes)
V
Data Latch
inc/dec logic
(2)
(3)
(3)
SS
2:
3:
21
CCP2 is multiplexed with RC1 when Configuration bit, CCP2MX, is set or RB3 when CCP2MX is not set.
RE3 is only available when MCLR functionality is disabled.
OSC1/CLKI and OSC2/CLKO are only available in select oscillator modes and when these pins are not being used as digital I/O.
For additional information, see Section 2.0 “Oscillator Configurations” of the “PIC18F2420/2520/4420/4520 Data Sheet” (DS39631).
EEPROM
Single-Supply
Programming
ECCP1
Debugger
Oscillator
Oscillator
Oscillator
Data
20
8
In-Circuit
Internal
INTRC
8 MHz
Block
PIC18F4423/4523 (40/44-PIN) BLOCK DIAGRAM
Decode and
Instruction
Table Latch
ROM Latch
Control
PCLATU
PCU
Program Counter
IR
31 Level Stack
Timer0
STKPTR
CCP2
PCLATH
PCH
Start-up Timer
Clock Monitor
8
Watchdog
Brown-out
Power-up
Power-on
Oscillator
Fail-Safe
State Machine
Control Signals
Timer
Reset
Timer
Reset
PCL
Data Bus<8>
8
Timer1
MSSP
PIC18F2423/2523/4423/4523
BITOP
BSR
EUSART
Reference
Band Gap
Timer2
Precision
4
3
8
Data Address<12>
Address
Decode
FSR0
FSR1
FSR2
inc/dec
Address Latch
Data Memory
logic
( 3.9 Kbytes )
Data Latch
PRODH
8
ALU<8>
8 x 8 Multiply
12
W
12
Access
8
Timer3
12-Bit
8
Bank
ADC
PRODL
4
12
8
8
8
8
PORTB
PORTC
PORTD
PORTE
PORTA
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI/C1OUT
RA5/AN4/SS/HLVDIN/C2OUT
OSC2/CLKO
OSC1/CLKI
RB0/INT0/FLT0/AN12
RB1/INT1/AN10
RB2/INT2/AN8
RB3/AN9/CCP2
RB4/KBI0/AN11
RB5/KBI1/PGM
RB6/KBI2/PGC
RB7/KBI3/PGD
RC0/T1OSO/T13CKI
RC1/T1OSI/CCP2
RC2/CCP1/P1A
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
RD0/PSP0
RD5/PSP5/P1B
RD6/PSP6/P1C
RD7/PSP7/P1D
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
MCLR/V
DS39755C-page 13
PP
REF
REF
:RD4/PSP4
/RE3
(3)
(3)
/RA7
-/CV
+
/RA6
(1)
(2)
(1)
REF