PIC18F452-I/L Microchip Technology Inc., PIC18F452-I/L Datasheet - Page 281
PIC18F452-I/L
Manufacturer Part Number
PIC18F452-I/L
Description
44 PIN, 32 KB FLASH, 1536 RAM, 34 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F452-IL.pdf
(332 pages)
Specifications of PIC18F452-I/L
A/d Inputs
8-Channel, 10-Bit
Comparators
2
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
36
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
44-pin PLCC
Programmable Memory
32K Bytes
Ram Size
1.5K Bytes
Speed
40 MHz
Timers
1-8-bit, 3-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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FIGURE 22-13:
TABLE 22-12: EXAMPLE SPI MODE REQUIREMENTS (MASTER MODE, CKE = 1)
© 2006 Microchip Technology Inc.
71
71A
72
72A
73
73A
74
75
76
78
79
80
81
Note 1: Requires the use of Parameter # 73A.
Param.
No.
Note:
(CKP = 0)
(CKP = 1)
SDI
SCK
SDO
SS
SCK
2: Only if Parameter # 71A and # 72A are used.
TscH
TscL
TdiV2scH,
TdiV2scL
T
TscH2diL,
TscL2diL
TdoR
TdoF
TscR
TscF
TscH2doV,
TscL2doV
TdoV2scH,
TdoV2scL
B
Symbol
Refer to Figure 22-4 for load conditions.
2
B
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) PIC18FXXX
SCK output fall time (Master mode) PIC18FXXX
SDO data output valid after SCK
edge
SDO data output setup to SCK edge
EXAMPLE SPI MASTER MODE TIMING (CKE = 1)
81
73
MSb In
MSb
74
71
75, 76
80
Characteristic
72
bit6 - - - - - -1
bit6 - - - -1
Continuous
Single Byte
Continuous
Single Byte
PIC18FXXX
PIC18LFXXX
PIC18FXXX
PIC18LFXXX
PIC18LFXXX
PIC18LFXXX
PIC18FXXX
PIC18LFXXX
LSb In
LSb
1.25 T
1.25 T
1.5 T
79
78
Min
100
100
T
40
40
CY
—
—
—
—
—
—
—
—
—
—
CY
CY
CY
+ 40
+ 30
+ 30
PIC18FXX2
Max Units Conditions
150
25
60
25
60
25
60
25
60
50
—
—
—
—
—
—
—
—
DS39564C-page 279
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
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