PIC18F452-E/PT Microchip Technology, PIC18F452-E/PT Datasheet - Page 276

• Manufacturer Part Number: PIC18F452-E/PT
• Description: IC MCU CMOS 40MHZ 16K FLSH44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F452-E/PT

• 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): 4.2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• 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
• Package: 44TQFP
• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18FXX2
FIGURE 22-8:
TABLE 22-7:
DS39564C-page 274
30
31
32
33
34
35
36
37
Param.
Internal Reference Voltage stable
Enable Internal Reference Voltage
No.
V
V
TmcL
T
T
T
T
T
T
T
Symbol
IRVST
OST
DD
WDT
PWRT
IOZ
BOR
IVRST
LVD
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER
AND BROWN-OUT RESET REQUIREMENTS
MCLR Pulse Width (low)
Watchdog Timer Time-out Period
(No Postscaler)
Oscillation Start-up Timer Period
Power up Timer Period
I/O Hi-impedance from MCLR Low
or Watchdog Timer Reset
Brown-out Reset Pulse Width
Time for Internal Reference
Voltage to become stable
Low Voltage Detect Pulse Width
BROWN-OUT RESET TIMING
Characteristic
36
BV
DD
1024 T
Min
200
200
28
—
—
2
7
OSC
Typ
—
18
—
72
—
20
—
2
35
1024 T
Max
132
500
33
—
—
—
—
OSC
© 2006 Microchip Technology Inc.
Units
ms
ms
—
s
s
s
s
s
T
V
D005)
V
D420)
OSC
DD
DD
Conditions
= OSC1 period
B
V
V
Typical
VDD
LVD
BGAP
(see
(see
= 1.2V