MITSUBISHI 〈DIGITAL ASSP〉
MITSUBISHI 〈DIGITAL ASSP〉
M66009FP
M66009FP
8BIT I/O EXPANDER WITH 5BIT ADDRESS
8-BIT I/O EXPANDER WITH 5-BIT ADDRESS
DESCRIPTION
M66009 silicon gate CMOS (complementary metal oxide
semiconductor) integrated circuit converts 8-bit data from serial to parallel and vice versa.
This IC has 5 address setting bits, which enable users to set
a distinctive address.
This IC offers a wide range of applications, such as for microcomputer input/output port extension.
PIN CONFIGURATION (TOP VIEW)
FEATURES
• Has 5 bits for address setting
• Connected to microcomputer via 4 pins (EN,CLK, DI and
DO)
• Input/output setting possible by the bit
• Schmitt input (RESET, EN and CLK)
• Wide operating temperature range (Ta = –20˚C to 75˚C)
1
2
3
4
5
6
7
8
9
10
M66009FP
CLOCK INPUT CLK
SERIAL DATA INPUT DI
SERIAL DATA OUTPUT DO
DATA ENABLE INPUT EN
A0
A1
ADDRESS SETTING
A2
INPUT
A3
A4
GND
20
19
18
17
16
15
14
13
12
11
VCC
RESET RESET INPUT
D7
D6
D5
D4 PARALLEL DATA
D3 I/O
D2
D1
D0
Outline 20P2N-A
APPLICATION
Microcomputer I/O port extension, etc.
BLOCK DIAGRAM
ADDRESS SETTING INPUT
A0
5
DATA ENABLE INPUT
EN 4
CLK 1
CLOCK INPUT
A1
6
A2
7
A3
8
A4
9
Address coincidence
detection circuit
5
Clock control
circuit
Address check
circuit
ACK
generation
circuit
11 D0
5
DI 2
SERIAL DATA INPUT
12 D1
Shift register for serial input
(8 bits)
13 D2
14 D3
8
15 D4
PARALLEL DATA
INPUT / OUTPUT
16 D5
Output latch (8 bits)
RESET 19
RESET INPUT
DO 3
SERIAL DATA OUTPUT
8
17 D6
8
18 D7
Shift register for serial output
(9 bits)
1
