參數(shù)資料
型號(hào): PCF8584
廠商: NXP Semiconductors N.V.
英文描述: IIC-bus controller(IIC總線控制器)
中文描述: IIC總線控制器(國(guó)際進(jìn)口總線控制器)
文件頁(yè)數(shù): 25/40頁(yè)
文件大小: 224K
代理商: PCF8584
1997 Oct 21
25
Philips Semiconductors
Product specification
I
2
C-bus controller
PCF8584
Notes
1.
A minimum of 6 clock cycles must elapse between consecutive parallel-bus accesses when the I
2
C-bus controller
operates at 8 or 12 MHz. This may be reduced to 3 clock cycles for lower operating frequencies.
Not for S1.
2.
t
AVCL
t
WLCL
t
RHCL
t
CLDV
t
CLDL
t
CHAI
t
CHRL
t
CHWH
t
CHDF
t
CHDE
t
CHDI
t
DVCL
t
ALIE
t
ALDV
t
ALAE
t
AHDI
t
ALDL
t
AHDE
t
W4
t
W5
t
CLCL
A0 set-up to CS LOW
R/WR set-up to CS LOW
R/WR set-up to CS LOW
data valid after CS LOW
DTACK LOW after CS LOW
A0 hold from CS HIGH
R/WR hold from CS HIGH
R/WR hold from CS HIGH
data bus float after CS HIGH
DTACK HIGH from CS HIGH
data hold after CS HIGH
data set-up to CS LOW
INT HIGH from IACK LOW
data valid after IACK LOW
IACK pulse width
data hold after IACK HIGH
DTACK LOW from IACK LOW
DTACK HIGH from IACK HIGH
RESET pulse width
STROBE pulse width
CS LOW
see Figs 17 and 18
see Fig.17
see Fig.18
see Fig.18 and note 2
see Figs 17 and 18
see Fig.18
see Fig.18
see Fig.17
see Fig.18
see Figs 17 and 18
see Fig.17
see Fig.17
see Figs 19 and 20
see Figs 19 and 20
see Fig.20
see Fig.20
see Fig.20
see Fig.20
see Fig.21
see Fig.22
see Figs 17 and 18
10
10
10
160
2t
CLK
+ 75
100
130
200
2t
CLK
+ 75
120
8t
CLK
+ 90
t
CLDL
+ t
CHDE
180
3t
CLK
+ 150 ns
150
120
180
250
30
3t
CLK
+ 150 ns
140
ns
ns
ns
ns
0
0
0
0
0
230
30t
CLK
8t
CLK
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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