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參數(shù)資料
| 型號(hào)： | PCF8575 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Remote 16-bit I/O expander for I2C-bus |
| 中文描述： | 遠(yuǎn)程16位I / O擴(kuò)展I2C總線 |
| 文件頁數(shù)： | 15/24頁 |
| 文件大?。?/td> | 105K |
| 代理商： | PCF8575 |
1999 Apr 07
15
Philips Semiconductors
Product specification
Remote 16-bit I/O expander for I
2
C-bus
PCF8575
11 I
2
C-BUS TIMING CHARACTERISTICS
See Fig.13 and note 1.
Notes
1.
All the timing values are valid within the operating supply voltage and ambient temperature range and refer to V
IL
and V
IH
with an input voltage swing of V
SS
to V
DD
.
The device inputs SDA and SCL are filtered and will reject spikes on the bus lines of widths less than t
SW(max)
.
The rise and fall times specified here refer to the driver device (PCF8575) and are part of the general fast I
2
C-bus
specification when PCF8575 asserts an acknowledge on SDA, the minimum fall time is 20 ns + 0.1C
b
.
2.
3.
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
f
SCL
t
SW
t
BUF
SCL clock frequency
tolerable spike width on bus
BUS free time between a STOP
and START condition
START condition set-up time
START condition hold time
SCL LOW time
SCL HIGH time
SCL and SDA rise time
SCL and SDA fall time
data set-up time
data hold time
STOP condition set-up time
capacitive load represented by
each bus line
1.3
400
50
kHz
ns
μ
s
note 2
t
SU;STA
t
HD;STA
t
LOW
t
HIGH
t
r
t
f
t
SU;DAT
t
HD;DAT
t
SU;STO
C
b
0.6
0.6
1.3
0.6
20 + 0.1C
b
20 + 0.1C
b
100
0
0.6
300
300
400
μ
s
μ
s
μ
s
μ
s
ns
ns
ns
ns
μ
s
pF
note 3
note 3
Fig.13 I
2
C-bus timing diagram.
handbook, full pagewidth
PROTOCOL
SCL
SDA
MGL546
BIT 0
LSB
(R/W)
tSU;STA
tSU;DAT
tSU;STO
tHD;STA
tHD;DAT
tBUF
tr
tf
tLOW
tHIGH
1/fSCL
START
CONDITION
(S)
BIT 7
MSB
(A7)
BIT 6
(A6)
ACKNOWLEDGE
(A)
STOP
CONDITION
(P)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCF8575C | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Remote 16-bit I/O expander for I2C-bus |
| PCF8575CDB | 功能描述:接口-I/O擴(kuò)展器 Remote 16-Bit I2C & SMBus I/O Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCF8575CDBE4 | 功能描述:接口-I/O擴(kuò)展器 Remote 16-Bit I2C & SMBus I/O Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCF8575CDBG4 | 功能描述:接口-I/O擴(kuò)展器 Rem 16B I2C & SMBus I/O Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCF8575CDBQR | 功能描述:接口-I/O擴(kuò)展器 Remote 16-Bit I2C & SMBus I/O Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
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