PIC18F452I/L Microchip Technology, PIC18F452I/L Datasheet - Page 281
PIC18F452I/L
Manufacturer Part Number
PIC18F452I/L
Description
IC, 8BIT MCU, PIC18F, 40MHZ, LCC-44
Manufacturer
Microchip Technology
Datasheet
1.PIC18F242-ISO.pdf
(332 pages)
Specifications of PIC18F452I/L
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
Core Size
8 Bit
Program Memory Size
16 KWords
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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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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