參數(shù)資料
型號(hào): PCA9544ADGVT
廠商: Texas Instruments, Inc.
英文描述: 4-CHANNEL IC AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC
中文描述: 4通道多路轉(zhuǎn)換集成電路和SMBus與中斷邏輯
文件頁數(shù): 12/23頁
文件大?。?/td> 578K
代理商: PCA9544ADGVT
www.ti.com
PARAMETER MEASUREMENT INFORMATION
R
L
= 1 k
V
CC
C
L
= 50 pF
(See Note A)
t
buf
t
icr
t
sth
t
sds
t
sdh
t
icf
t
icr
t
scl
t
sch
t
sts
t
vd(ACK)
or t
vdL
t
vdH
0.3
×
V
CC
Stop
Condition
t
sps
Repeat
Start
Condition
Start or Repeat
Start Condition
SCL
SDA
Start
Condition
(S)
Address
Bit 7
(MSB)
Data
Bit 0
(LSB)
Stop
Condition
(P)
Two Bytes for Complete
Device Programming
I
2
C-PORT LOAD CONFIGURATION
VOLTAGE WAVEFORMS
t
icf
Stop
Condition
(P)
t
sp
DUT
SDn, SCn
0.7
×
V
CC
0.3
×
V
CC
0.7
×
V
CC
R/W
Bit 0
(LSB)
ACK
(A)
Data
Bit 7
(MSB)
Address
Bit 1
Address
Bit 6
ACK
(A)
BYTE
DESCRIPTION
I
2
C address + R/W
Control register data
1
2
NOTES: A. C
L
includes probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: PRR
10 MHz, Z
O
= 50
, t
r/
t
f
30 ns.
C. The outputs are measured one at a time, with one transition per measurement.
PCA9544A
4-CHANNEL I
2
C AND SMBus MULTIPLEXER
WITH INTERRUPT LOGIC
SCPS146A–OCTOBER 2005–REVISED OCTOBER 2005
Figure 10. I
2
C Interface Load Circuit, Byte Descriptions, and Voltage Waveforms
12
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PCA9544ADWT 制造商:TI 制造商全稱:Texas Instruments 功能描述:4-CHANNEL I2C AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC