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參數資料
| 型號： | PCA9500 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | DRAM |
| 英文描述： | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| 中文描述： | 該CAT24FC02是一個2 KB的EEPROM的國內256個8位每字舉辦的串行CMOS |
| 文件頁數： | 6/23頁 |
| 文件大小： | 169K |
| 代理商： | PCA9500 |
Philips Semiconductors
Product data sheet
PCA9500
8-bit I
2
C and SMBus I/O port with 2-kbit EEPROM
2004 Sep 30
6
Quasi-bidirectional I/Os (see Figure 8)
A quasi-bidirectional I/O can be used as an input or output without the use of a control signal for data direction. At power-on the I/Os are HIGH.
In this mode, only a current source to V
DD
is active. An additional strong pull-up to V
DD
allows fast rising edges into heavily loaded outputs.
These devices turn on when an output is written HIGH, and are switched off by the negative edge of SCL. The I/Os should be HIGH before
being used as inputs.
S
0
1
0
0
A2
A1
A0
0
A
A
A
SDA
SCL
1
2
3
4
5
6
7
8
SW00905
ACKNOWLEDGE
FROM SLAVE
R/W
START CONDITION
ACKNOWLEDGE
FROM SLAVE
SLAVE ADDRESS (I/O EXPANDER)
DATA TO PORT
DATA TO PORT
1
I/O3
0
I/O3
P
I/O3
OUTPUT
VOLTAGE
I/O3
PULL-UP
OUTPUT
CURRENT
I
OHt
I
OH
Figure 8. Transient pull-up current I
OHt
while I/O3 changes from LOW-to-HIGH and back to LOW
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相關代理商/技術參數 |
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|---|---|
| PCA9500BS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit I2C-bus and SMBus I/O port with 2-kbit EEPROM |
| PCA9500BS,118 | 功能描述:接口-I/O擴展器 8BIT I2C FMQB GPIO PU2K EEPROM RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數量: 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9500BSHP | 功能描述:接口-I/O擴展器 RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數量: 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9500D | 功能描述:接口-I/O擴展器 I/O EXPANDER W/2K EE RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數量: 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9500D,112 | 功能描述:接口-I/O擴展器 I/O EXPANDER W/2K EE RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數量: 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
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