PIC18F452-E/PT Microchip Technology, PIC18F452-E/PT Datasheet - Page 275

• 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

TABLE 22-6:
FIGURE 22-7:
© 2006 Microchip Technology Inc.
Param.
10
11
12
13
14
15
16
17
18
18A
19
20
20A
21
21A
22††
23††
24††
Note 1: Measurements are taken in RC mode, where CLKO output is 4 x T
No.
Watchdog
Time-out
Time-out
Note:
I/O Pins
Internal
Internal
†† These parameters are asynchronous events not related to any internal clock edges.
PWRT
MCLR
Reset
Reset
Timer
POR
OSC
V
TosH2ckL OSC1 to CLKO
TosH2ckH OSC1 to CLKO
TckR
TckF
TckL2ioV CLKO to Port out valid
TioV2ckH Port in valid before CLKO
TckH2ioI
TosH2ioV OSC1 (Q1 cycle) to Port out valid
TosH2ioI OSC1 (Q2 cycle) to Port
TioV2osH Port input valid to OSC1 (I/O in setup time)
TioR
TioF
T
T
T
Symbol
DD
INP
RBP
RCP
Refer to Figure 22-4 for load conditions.
CLKO AND I/O TIMING REQUIREMENTS
CLKO rise time
CLKO fall time
Port in hold after CLKO
input invalid (I/O in hold time)
Port output rise time
Port output fall time
INT pin high or low time
RB7:RB4 change INT high or low time
RC7:RC4 change INT high or low time
RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
TIMER TIMING
33
Characteristic
32
PIC18FXXX
PIC18LFXXX
PIC18FXXX
PIC18LFXXX
PIC18FXXX
PIC18LFXXX
0.25 T
34
30
Min
100
200
T
T
20
—
—
—
—
—
—
—
—
—
—
CY
0
0
CY
CY
+ 25
OSC
Typ
.
75
75
35
35
50
10
10
—
—
—
—
—
—
—
—
—
—
31
0.5 T
PIC18FXX2
Max
200
200
100
100
150
CY
25
60
25
60
—
—
—
—
—
—
—
+ 20
DS39564C-page 273
34
Units Conditions
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
V
V
DD
DD
= 2V
= 2V