PIC18F452-E/PT Microchip Technology, PIC18F452-E/PT Datasheet - Page 280

• 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 22-12:
TABLE 22-11: EXAMPLE SPI MODE REQUIREMENTS (MASTER MODE, CKE = 0)
DS39564C-page 278
70
71
71A
72
72A
73
73A
74
75
76
78
79
80
Note 1: Requires the use of Parameter # 73A.
Param.
No.
(CKP = 0)
(CKP = 1)
SDI
SCK
SDO
SS
SCK
Note:
2: Only if Parameter # 71A and # 72A are used.
TssL2scH,
TssL2scL
TscH
TscL
TdiV2scH,
TdiV2scL
T
TscH2diL,
TscL2diL
TdoR
TdoF
TscR
TscF
TscH2doV,
TscL2doV
Symbol
B
2
Refer to Figure 22-4 for load conditions.
B
SS to SCK or SCK input
SCK input high time
(Slave mode)
SCK input low time
(Slave mode)
Setup time of SDI data input to SCK edge
Last clock edge of Byte1 to the 1st clock edge of Byte2
Hold time of SDI data input to SCK edge
SDO data output rise time
SDO data output fall time
SCK output rise time
(Master mode)
SCK output fall time (Master mode) PIC18FXXX
SDO data output valid after SCK
edge
EXAMPLE SPI MASTER MODE TIMING (CKE = 0)
70
80
71
73
MSb In
MSb
Characteristic
74
72
75, 76
bit6 - - - - - -1
Continuous
Single Byte
Continuous
Single Byte
PIC18FXXX
PIC18LFXXX
PIC18FXXX
PIC18LFXXX
PIC18FXXX
PIC18LFXXX
PIC18LFXXX
PIC18FXXX
PIC18LFXXX
bit6 - - - -1
78
79
1.25 T
1.25 T
1.5 T
LSb
79
78
Min
100
100
T
CY
LSb In
40
40
—
—
—
—
—
—
—
—
—
—
CY
CY
CY
+ 40
+ 30
+ 30
© 2006 Microchip Technology Inc.
Max Units Conditions
150
25
60
25
60
25
60
25
60
50
—
—
—
—
—
—
—
—
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(Note 1)
(Note 1)
(Note 2)
V
V
V
V
V
DD
DD
DD
DD
DD
= 2V
= 2V
= 2V
= 2V
= 2V