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参数资料
| 型号： | 935269568118 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16 I/O, PIA-GENERAL PURPOSE, PDSO24 |
| 封装： | 5.30 MM, PLASTIC, MO-150, SOT-340-1, SSOP-24 |
| 文件页数： | 12/17页 |
| 文件大小： | 151K |
| 代理商： | 935269568118 |
Philips Semiconductors
Product data
PCA9555
16-bit I2C and SMBus I/O port with interrupt
2002 Jul 26
4
BLOCK DIAGRAM
POWER-ON
RESET
INPUT
FILTER
I2C/SMBUS
CONTROL
INPUT/
OUTPUT
PORTS
WRITE pulse
READ pulse
A0
A1
A2
SCL
SDA
VDD
VSS
8-BIT
I/O0.0
I/O0.1
I/O0.2
I/O0.3
I/O0.4
I/O0.5
I/O0.6
I/O0.7
SU01439
NOTE: ALL I/Os ARE SET TO INPUTS AT RESET
VINT
INT
8-BIT
INPUT/
OUTPUT
PORTS
I/O1.0
I/O1.1
I/O1.2
I/O1.3
I/O1.4
I/O1.5
I/O1.6
I/O1.7
WRITE pulse
READ pulse
LP FILTER
Figure 3. Block diagram
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