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參數(shù)資料
| 型號(hào)： | 9534 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit I2C and SMBus, low power I/O port with interrupt |
| 中文描述： | 8位I2C和SMBus，低功率的I / O端口中斷 |
| 文件頁數(shù)： | 12/17頁 |
| 文件大?。?/td> | 146K |
| 代理商： | 9534 |
Philips Semiconductors
Product data sheet
PCA9534
8-bit I
2
C and SMBus low power I/O port with interrupt
2004 Sep 30
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)
ACKNOWLEDGE
(A)
tVD;ACK
SW02287
BIT 8
(R/W)
STOP
CONDITION
(S)
tSU;STO
Figure 14. 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
CC
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.
6.0 V
Open
R
T
D.U.T.
R
L
= 500
SW02142
Figure 15. 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 16. Test circuit
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