PIC18F4523-I/PT Microchip Technology, PIC18F4523-I/PT Datasheet - Page 4

IC PIC MCU FLASH 16KX16 44TQFP

PIC18F4523-I/PT

Manufacturer Part Number
PIC18F4523-I/PT
Description
IC PIC MCU FLASH 16KX16 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr

Specifications of PIC18F4523-I/PT

Program Memory Type
FLASH
Program Memory Size
32KB (16K 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
1.5K 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
1.5 KB
Interface Type
EUSART/I2C/MSSP/SPI
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
36
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, 53275-917, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136, DM163022
Minimum Operating Temperature
- 40 C
On-chip Adc
13-ch x 12-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164305 - MODULE SKT FOR PM3 44TQFP444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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PIC18F2423/2523/4423/4523
6. Module: MSSP (SPI Mode)
FIGURE 1:
EXAMPLE 2:
DS80289E-page 4
LOOP BTFSS SSPSTAT, BF
When the SPI is using Timer2/2 as the clock
source, a shorter than expected SCK pulse may
occur on the first bit of the transmitted/received
data (Figure 1).
Work around
To avoid producing the short pulse, turn off Timer2
and clear the TMR2 register, load the SSPBUF
with the data to transmit and then turn Timer2 back
on. Refer to Example 2 for sample code.
Date Codes that pertain to this issue:
All engineering and production devices.
SDO
SCK
BRA
MOVF
MOVWF RXDATA
MOVF
BCF
CLRF
MOVWF SSPBUF
BSF
Write SSPBUF
LOOP
SSPBUF, W
TXDATA, W
T2CON, TMR2ON
TMR2
T2CON, TMR2ON
bit 0 = 1 bit 1 = 0
SCK PULSE VARIATION
USING TIMER2/2
AVOIDING THE INITIAL
SHORT SCK PULSE
;Data received?
;(Xmit complete?)
;No
;W = SSPBUF
;Save in user RAM
;W = TXDATA
;Timer2 off
;Clear Timer2
;Xmit New data
;Timer2 on
bit 2 = 1 . . . .
7. Module: 12-Bit Analog-to-Digital
When the AD clock source is selected as 2 T
RC (when ADCS2:ADCS0 = 000 or x11), the E
(Integral Linearity Error) and E
Linearity Error) may exceed the data sheet
specification at codes 2047, 2048 and 2049.
Work around
Select the AD clock source as 4 T
16 T
2 T
Date Codes that pertain to this issue:
All engineering and production devices.
OSC
OSC
or RC.
, 32 T
Converter
OSC
or 64 T
© 2007 Microchip Technology Inc.
OSC
and avoid selecting
DL
OSC
(Differential
, 8 T
OSC
OSC
or
IL
,

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