參數(shù)資料
型號: PCA9536
廠商: NXP Semiconductors N.V.
英文描述: 4-bit I2C and SMBus I/O port
中文描述: 4位I2C和SMBus I / O端口
文件頁數(shù): 12/16頁
文件大?。?/td> 153K
代理商: PCA9536
Philips Semiconductors
Objective data sheet
PCA9536
4-bit I
2
C and SMBus I/O port
2004 Aug 20
12
PROTOCOL
SCL
SDA
tHD;STA
tSU;DAT
tHD;DAT
tVD;DAT
tf
r
t
tBUF
tSU;STA
tLOW
tHIGH
1 / fSCL
START
CONDITION
(S)
BIT 7
MSB
(A7)
BIT 6
(A6)
tVD;ACK
SW02210
STOP
CONDITION
(S)
BIT 0
(R/W)
ACKNOWLEDGE
(A)
t
SU;STO
Figure 11. I
2
C-bus timing diagram; rise and fall times refer to V
IL
and V
IH
PULSE
GENERATOR
V
I
V
O
C
50 pF
V
DD
DEFINITIONS
R
L
=
Load resistor.
C
L
=
Load capacitance includes jig and probe capacitance
R
T
=
Termination resistance should be equal to the output
impedance Z
O
of the pulse generators.
V
DD
Open
R
T
D.U.T.
R
L
= 500
SW02181
Figure 12. Test circuitry for switching times
C
L
= 50 pF
500
Load Circuit
TEST
S1
t
pv
2 V
DD
SA00652
500
From Output
Under Test
S1
2V
DD
Open
GND
Figure 13. Test circuit
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