M62320P Datasheet, PDF (1/9 Pages) Mitsubishi Electric Semiconductor – 8-BIT I/O EXPANDER for I2C BUS

GENERAL DESCRIPTION
The M62320P/FP is a CMOS 8-bit I/O expander which has
serial to parallel and parallel to serial data converting
functions.
It can communicate with a microcontroller via few wiring
thanks to the adoption of the two-line I² C BUS.
Parallel data I/O terminal can be set to input or output
mode alternatively in individual bits.
Maximum 8 ICs can be connected to a bus by using three
chip-select pins, so that it is possible to handle up to 64 bits
data.
FEATURES
• Simple two-line (SCL and SDA) communication with a
microcontroller.
• 8-bit data conversion between serial and parallel by
I²C BUS.
• Built-in power-on reset.
APPLICATION
I/O port expansion for a microcontroller.
Data conversion between serial and parallel in
microcontroller peripherals.
BLOCK DIAGRAM
CS0 CS1 CS2
16 15 14
CHIP-SELECT
MITSUBISHI < STD. LINEAR ICs >
M62320P,FP
8-BIT I/O EXPANDER for I² C BUS
PIN CONFIGURATION(TOP VIEW)
SO ₁
SCL ₂
SDA ₃
D0 ₄
D1 5
D2 6
D3 7
GND 8
16 ^CS0
15 ^CS1
14 ^CS2
13 ^VDD
12 D7
11 D6
10 D5
9 D4
Outline 16P4(P)
16P2N(FP)
SCL 2
SDA 3
VDD ¹³ _POWER-ON
GND 8 ^RESET
I²C BUS
TRANSCEIVER
SHIFT
REGISTER
Output Data Input/Output
8
8
8
OUTPUT DATA
LATCH
I/O SETTING
DATA LATCH
INPUT DATA
LATCH
8
8
ÅI@/O _PORT
8
Input Data
1 SO
12 11 10 9
7
6
5
4
D7 D6 D5 D4 D3 D2 D1 D0
MITSUBISHI ELECTRIC
2/20,1998(rev) ( 1 / 9 )