- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367809 > PCA9546A (NXP Semiconductors N.V.) 4-channel I2C switch with reset PDF資料下載
參數(shù)資料
| 型號： | PCA9546A |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 4-channel I2C switch with reset |
| 中文描述： | 4通道的I2C開關(guān)與復(fù)位 |
| 文件頁數(shù)： | 15/25頁 |
| 文件大?。?/td> | 144K |
| 代理商： | PCA9546A |
9397 750 14318
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 — 6 April 2005
15 of 25
Philips Semiconductors
PCA9546A
4-channel I
2
C switch with reset
12. Dynamic characteristics
[1]
Pass gate propagation delay is calculated from the 20
typical R
on
and the 15 pF load capacitance.
A device must internally provide a hold time of at least 300 ns for the SDA signal (referred to the V
IH(min)
of the SCL signal) in order to
bridge the undefined region of the falling edge of SCL.
[2]
[3]
C
b
= total capacitance of one bus line in pF.
Measurements taken with 1 k
pull-up resistor and 50 pF load.
[4]
Table 8:
Symbol
Dynamic characteristics
Parameter
Conditions
Standard-mode
I
2
C-bus
Min
-
Fast-mode I
2
C-bus
Unit
Max
0.3
[1]
Min
Max
0.3
[1]
t
PD
propagation delay from SDA to SDn, or
SCL to SCn
SCL clock frequency
bus free time between a STOP and
START condition
hold time (repeated) START condition.
After this period, the first clock pulse is
generated.
LOW period of the SCL clock
HIGH period of the SCL clock
setup time for a repeated START
condition
setup time for STOP condition
data hold time
data setup time
rise time of both SDA and SCL signals
fall time of both SDA and SCL signals
capacitive load for each bus line
pulse width of spikes which must be
suppressed by the input filter
data valid time
-
ns
f
SCL
t
BUF
0
4.7
100
-
0
1.3
400
-
kHz
μ
s
t
HD;STA
4.0
-
0.6
-
μ
s
t
LOW
t
HIGH
t
SU;STA
4.7
4.0
4.7
-
-
-
1.3
0.6
0.6
-
-
-
μ
s
μ
s
μ
s
t
SU;STO
t
HD;DAT
t
SU;DAT
t
r
t
f
C
b
t
SP
4.0
0
[2]
250
-
-
-
-
-
3.45
-
1000
300
400
50
0.6
0
[2]
100
20 + 0.1C
b
[3]
20 + 0.1C
b
[3]
-
-
-
0.9
-
300
300
400
50
μ
s
μ
s
ns
ns
μ
s
μ
s
ns
t
VD;DAT
HIGH-to-LOW
LOW-to-HIGH
[4]
-
1
0.6
1
-
-
-
1
0.6
1
μ
s
μ
s
μ
s
[4]
-
t
VD;ACK
RESET
t
w(rst)L
t
rst
t
REC;STA
data valid Acknowledge
-
LOW-level reset time
reset time (SDA clear)
recovery time to START condition
4
500
0
-
-
-
4
500
0
-
-
-
ns
ns
ns
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCA9546 | 4-channel I2C switch with reset |
| PCA9546D | 4-channel I2C switch with reset |
| PCA9546PW | 4-channel I2C switch with reset |
| PCA9549 | Octal bus switch with individually I2C-bus controlled enables |
| PCA9555N | 16-bit I2C and SMBus I/O port with interrupt |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9546A_1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:4-CHANNEL I2C AND SMBus SWITCH WITH RESET FUNCTION |
| PCA9546A_2 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:4-CHANNEL I2C AND SMBus SWITCH WITH RESET FUNCTION |
| PCA9546A_3 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:4-CHANNEL I2C AND SMBus SWITCH WITH RESET FUNCTION |
| PCA9546ABS | 制造商:NXP Semiconductors 功能描述: |
| PCA9546ABS,118 | 功能描述:多路器開關(guān) IC I2C SWITCH 4CH RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。