參數(shù)資料
型號: PCA9554ADBRG4
廠商: TEXAS INSTRUMENTS INC
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: GREEN, PLASTIC, SSOP-16
文件頁數(shù): 23/39頁
文件大?。?/td> 985K
代理商: PCA9554ADBRG4
14
I/O
Port
Shift
Register
8 Bits
LP Filter
Interrupt
Logic
Input
Filter
15
Power-On
Reset
Read Pulse
Write Pulse
2
1
13
16
8
GND
VCC
SDA
SCL
A1
A0
INT
I2C Bus
Control
P7P0
3
A2
www.ti.com........................................................................................................................................... SCPS127D – SEPTEMBER 2006 – REVISED AUGUST 2008
TERMINAL FUNCTIONS
NO.
QSOP (DBQ)
SOIC (DW),
NAME
DESCRIPTION
QFN (RGT AND
SSOP (DB),
RGV)
TSSOP (PW), AND
TVSOP (DGV)
1
15
A0
Address input. Connect directly to VCC or ground.
2
16
A1
Address input. Connect directly to VCC or ground.
3
1
A2
Address input. Connect directly to VCC or ground.
4
2
P0
P-port input/output. Push-pull design structure.
5
3
P1
P-port input/output. Push-pull design structure.
6
4
P2
P-port input/output. Push-pull design structure.
7
5
P3
P-port input/output. Push-pull design structure.
8
6
GND
Ground
9
7
P4
P-port input/output. Push-pull design structure.
10
8
P5
P-port input/output. Push-pull design structure.
11
9
P6
P-port input/output. Push-pull design structure.
12
10
P7
P-port input/output. Push-pull design structure.
13
11
INT
Interrupt output. Connect to VCC through a pullup resistor.
14
12
SCL
Serial clock bus. Connect to VCC through a pullup resistor.
15
13
SDA
Serial data bus. Connect to VCC through a pullup resistor.
16
14
VCC
Supply voltage
FUNCTIONAL BLOCK DIAGRAM
A.
Pin numbers shown are for the DB, DBQ, DGV, DW, or PW package.
B.
All I/Os are set to inputs at reset.
Copyright 2006–2008, Texas Instruments Incorporated
3
Product Folder Link(s): PCA9554A
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