參數(shù)資料
型號(hào): PCA9541
廠商: NXP Semiconductors N.V.
英文描述: 2-to-1 I2C master selector with interrupt logic and reset
中文描述: 2比1的I2C主機(jī)選擇與中斷邏輯和復(fù)位
文件頁數(shù): 24/30頁
文件大小: 279K
代理商: PCA9541
Philips Semiconductors
Product data sheet
PCA9541
2-to-1 I
2
C demultiplexer with interrupt logic and reset
2004 Oct 01
23
t
SP
t
BUF
t
HD;STA
P
P
S
t
LOW
t
R
t
HD;DAT
t
F
t
HIGH
t
SU;DAT
t
SU;STA
Sr
t
HD;STA
t
SU;STO
SDA
SCL
SU00645
Figure 22. Definition of timing on the I
2
C-bus
handbook, full pagewidth
PROTOCOL
SCL
SDA
tHD;STA
tSU;DAT
tHD;DAT
tVD;DAT
tf
r
t
tBUF
tSU;STA
tLOW
tHIGH
1 / fSCL
tVD;ACK
SW02278
BIT8
(R/W)
ACKNOWLEDGE
(A)
STOP
CONDITION
(S)
START
CONDITION
(S)
BIT7
MSB
(A7)
BIT6
(A6)
tSU;STO
Figure 23. I
2
C-bus timing diagram; rise and fall times refer to V
IL
and V
IH
SDA
SCL
SW02336
t
RESET
t
RESET
50%
30%
50%
50%
50%
t
REC
t
W
RESET
LEDx
LED OFF
ACK OR READ CYCLE
START
Figure 24. Definition of RESET timing
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參數(shù)描述
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