TABLE 31-25: I2
參數(shù)資料
型號: PIC18F87K90-I/PTRSL
廠商: Microchip Technology
文件頁數(shù): 101/110頁
文件大?。?/td> 0K
描述: MCU PIC 128K FLASH XLP 80TQFP
產(chǎn)品培訓(xùn)模塊: 8-bit PIC® Microcontroller Portfolio
標(biāo)準(zhǔn)包裝: 119
系列: PIC® XLP™ 18F
核心處理器: PIC
芯體尺寸: 8-位
速度: 64MHz
連通性: I²C,LIN,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,LCD,POR,PWM,WDT
輸入/輸出數(shù): 69
程序存儲器容量: 128KB(64K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 1K x 8
RAM 容量: 4K x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 24x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 80-TQFP
包裝: 托盤
2010 Microchip Technology Inc.
Preliminary
DS39964B-page 547
PIC18F47J53 FAMILY
TABLE 31-25: I2C BUS DATA REQUIREMENTS (SLAVE MODE)
Param.
No.
Symbol
Characteristic
Min
Max
Units
Conditions
100
THIGH
Clock High Time
100 kHz mode
4.0
s
400 kHz mode
0.6
s
MSSP modules
1.5 TCY
101
TLOW
Clock Low Time
100 kHz mode
4.7
s
400 kHz mode
1.3
s
MSSP modules
1.5 TCY
102
TR
SDAx and SCLx Rise Time 100 kHz mode
1000
ns
400 kHz mode
20 + 0.1 CB
300
ns
CB is specified to be from
10 to 400 pF
103
TF
SDAx and SCLx Fall Time 100 kHz mode
300
ns
400 kHz mode
20 + 0.1 CB
300
ns
CB is specified to be from
10 to 400 pF
90
TSU:STA
Start Condition Setup Time 100 kHz mode
4.7
s
Only relevant for Repeated
Start condition
400 kHz mode
0.6
s
91
THD:STA
Start Condition Hold Time 100 kHz mode
4.0
s
After this period, the first clock
pulse is generated
400 kHz mode
0.6
s
106
THD:DAT
Data Input Hold Time
100 kHz mode
0
ns
400 kHz mode
0
0.9
s
107
TSU:DAT
Data Input Setup Time
100 kHz mode
250
ns
(Note 2)
400 kHz mode
100
ns
92
TSU:STO
Stop Condition Setup Time 100 kHz mode
4.7
s
400 kHz mode
0.6
s
109
TAA
Output Valid from Clock
100 kHz mode
3500
ns
(Note 1)
400 kHz mode
ns
110
TBUF
Bus Free Time
100 kHz mode
4.7
s
Time the bus must be free
before a new transmission can
start
400 kHz mode
1.3
s
D102
CB
Bus Capacitive Loading
400
pF
Note 1:
As a transmitter, the device must provide this internal minimum delay time to bridge the undefined region (min. 300 ns)
of the falling edge of SCLx to avoid unintended generation of Start or Stop conditions.
2:
A Fast mode I2C bus device can be used in a Standard mode I2C bus system, but the requirement, TSU:DAT
250 ns,
must then be met. This will automatically be the case if the device does not stretch the LOW period of the SCLx signal.
If such a device does stretch the LOW period of the SCLx signal, it must output the next data bit to the SDAx line, TR
max. + TSU:DAT = 1000 + 250 = 1250 ns (according to the Standard mode I2C bus specification), before the SCLx line is
released.
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