- 您现在的位置：买卖IC网 > PDF目录24830 > 935269192118 (NXP SEMICONDUCTORS) 8 I/O, PIA-GENERAL PURPOSE, PDSO16 PDF资料下载
参数资料
| 型号： | 935269192118 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8 I/O, PIA-GENERAL PURPOSE, PDSO16 |
| 封装： | 7.50 MM, PLASTIC, MS-013, SOT-162-1, SO-16 |
| 文件页数： | 11/15页 |
| 文件大小： | 140K |
| 代理商： | 935269192118 |
Philips Semiconductors
Product data
PCA9554/PCA9554A
8-bit I2C and SMBus I/O port with interrupt
2002 Jul 26
5
SIMPLIFIED SCHEMATIC OF I/O0 TO I/O7
WRITE PULSE
DATA FROM
SHIFT REGISTER
VDD
I/O0 TO I/O7
VSS
WRITE
CONFIGURATION
PULSE
D
CK
FF
Q
D
CK
Q
FF
D
CK
Q
FF
D
CK
Q
FF
INPUT PORT
REGISTER
POLARITY
INVERSION
REGISTER
OUTPUT
PORT
REGISTER
DATA FROM
SHIFT REGISTER
DATA FROM
SHIFT REGISTER
WRITE
POLARITY
PULSE
CONFIGURATION
REGISTER
OUTPUT PORT
REGISTER DATA
INPUT PORT
REGISTER DATA
POLARITY
REGISTER DATA
READ PULSE
SU01472
Q
TO INT
100 k
Q1
Q2
NOTE:
At Power-on Reset, all registers return to default values.
Figure 4. Simplified schematic of I/O0 to I/O7
I/O port
When an I/O is configured as an input, FETs Q1 and Q2 are off,
creating a high impedance input with a weak pull-up (100 k
typ.) to
VDD. The input voltage may be raised above VDD to a maximum of
5.5 V.
If the I/O is configured as an output, then either Q1 or Q2 is enabled,
depending on the state of the output port register. Care should be
exercised if an external voltage is applied to an I/O configured as an
output because of the low impedance paths that exist between the
pin and either VDD or VSS.
相关PDF资料 |
PDF描述 |
|---|---|
| 935269202118 | 8 I/O, PIA-GENERAL PURPOSE, PDSO16 |
| 935269201112 | 8 I/O, PIA-GENERAL PURPOSE, PDSO16 |
| 0803-6500-04 | Slim Line Hybrid for IDT |
| 935269256557 | 1 CHANNEL(S), SERIAL COMM CONTROLLER, PQFP80 |
| 935264570557 | 1 CHANNEL(S), SERIAL COMM CONTROLLER, PQFP80 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 935269304128 | 制造商:ST-Ericsson 功能描述:IC AUDIO CODEC W/TCH SCRN 48LQFP |
| 935269544557 | 制造商:NXP Semiconductors 功能描述:SUB ONLY TDA9587-2US1-V1.3 |
| 935269987557 | 制造商:NXP Semiconductors 功能描述:SUB ONLY TDA9587-1US1-V1.8 SUBBED TO 935269987557 |
| 935270713557 | 制造商:NXP Semiconductors 功能描述:SUB ONLY IC CHP |
| 935270792551 | 制造商:NXP Semiconductors 功能描述:IC BUFF DVR TRI-ST 16BIT 56VFBGA |
发布紧急采购，3分钟左右您将得到回复。