ma009a Megawin Technology, ma009a Datasheet - Page 2

• Manufacturer Part Number: ma009a
• Description: 24-bit I/o Extender With Interrupt Function
• Manufacturer: Megawin Technology

General Description
The MA009 is high-speed Si-gate CMOS devices
that provide a general purpose I/O peripheral. The
MA009 provides microcontroller eight input pins
plus eight I/O pins and eight output pins. Each
input pin can be configured as interrupt source and
output pin can be configured as CMOS/NMOS
Pad Description
2
12, 30, 40, 41
11, 21, 39
Pad No.
20 to 13
29 to 22
38 to 31
1, 8, 9
2, 3, 4
10
5
6
7
Pad Name
A0, A1, A2
P
P
P
20
10
00
C/DB
SCLK
INTB
GND
V
NC
Sin
to P
to P
to P
CC
27
17
07
I/O
MA009A Technical Summary
O
O
O
O
P
P
I
I
I
I
I
No connection
Chip Address bit0, bit1, bit2
Serial interface, command/data selector
Serial interface, serial clock
Serial interface, serial command/data input
Input port interrupt event indicator
Output Port 2
Input/Output Port 1
Input Port 0
Positive supply voltage
Power ground (0 V)
output. The MA009 is controlled through a 3-wire
serial interface, and can be set as one of eight chip
addresses by pin option.
for use in many commercial and industrial
applications where high density, low pin count,
low voltage, and low power are essential.
Description
The device is optimized
MEGAWIN