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参数资料
| 型号： | PCF8575TS/1,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 7/24页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 16B 24SSOP |
| 产品培训模块： | I²C Bus Fundamentals |
| 特色产品： | NXP - I2C Interface |
| 标准包装： | 1 |
| 接口： | I²C |
| 输入/输出数： | 16 |
| 中断输出： | 是 |
| 频率 - 时钟： | 400kHz |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 24-SSOP |
| 包装： | 标准包装 |
| 包括： | POR |
| 产品目录页面： | 827 (CN2011-ZH PDF) |
| 其它名称： | 568-1079-6 |
1999 Apr 07
15
Philips Semiconductors
Product specication
Remote 16-bit I/O expander for I2C-bus
PCF8575
11 I2C-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 VIL
and VIH with an input voltage swing of VSS to VDD.
2. The device inputs SDA and SCL are filtered and will reject spikes on the bus lines of widths less than tSW(max).
3. The rise and fall times specified here refer to the driver device (PCF8575) and are part of the general fast I2C-bus
specification when PCF8575 asserts an acknowledge on SDA, the minimum fall time is 20 ns + 0.1Cb.
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
fSCL
SCL clock frequency
400
kHz
tSW
tolerable spike width on bus
note 2
50
ns
tBUF
BUS free time between a STOP
and START condition
1.3
s
tSU;STA
START condition set-up time
0.6
s
tHD;STA
START condition hold time
0.6
s
tLOW
SCL LOW time
1.3
s
tHIGH
SCL HIGH time
0.6
s
tr
SCL and SDA rise time
note 3
20 + 0.1Cb
300
ns
tf
SCL and SDA fall time
note 3
20 + 0.1Cb
300
ns
tSU;DAT
data set-up time
100
ns
tHD;DAT
data hold time
0
ns
tSU;STO
STOP condition set-up time
0.6
s
Cb
capacitive load represented by
each bus line
400
pF
Fig.13 I2C-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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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCF8575TSDB | 制造商:NXP Semiconductors 功能描述:I2C GPIO Expander 5.5V 24-Pin SSOP Tube |
| PCF8575TSDB-T | 制造商:NXP Semiconductors 功能描述: |
| PCF8576 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates |
| PCF8576_01 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates |
| PCF8576C | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates |
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