參數(shù)資料
型號(hào): 935270674118
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8 I/O, PIA-GENERAL PURPOSE, PDSO16
封裝: 3.90 MM, PLASTIC, MS-012, SOT-109-1, SO-16
文件頁數(shù): 17/20頁
文件大?。?/td> 153K
代理商: 935270674118
Philips Semiconductors
Product data
PCA9557
8-bit I2C and SMBus I/0 port with reset
2002 Dec 13
6
SIMPLIFIED SCHEMATIC OF I/O1 TO I/O7
WRITE PULSE
DATA FROM
SHIFT REGISTER
VDD
I/O0 TO I/O15
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
ESD PROTECTION DIODE
SW00796
Q
NOTE:
On power-up or reset, all registers return to default values.
Figure 6. Simplified schematic of I/O1 to I/O7
相關(guān)PDF資料
PDF描述
935270674112 8 I/O, PIA-GENERAL PURPOSE, PDSO16
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