M66014FP Datasheet, PDF (1/2 Pages) Mitsubishi Electric Semiconductor – 16-BIT SERIAL BUS CONTROLLER

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MITMSITUSBUISBHISI H〈DI I〈GDIITGAITLAALSASSPS〉 P〉
M660M16640F14PFP
16-1B6IT-BSITESREIARLIABLUBSUCSOCNOTNRTORLOLELRLER
DESCRIPTION
M66014 Semiconductor Integrated Circuit is a serial bus con-
troller. It converts 2-byte parallel data that arrives from micro-
computer into serial and outputs it to serial bus. It also
converts serial data input from serial bus into parallel and out-
puts it to microcomputer.
The M66014 is used for the extension of microcomputer I/O
ports and two-way communication with peripheral equipment
connected with serial buses.
FEATURES
• Compatible with general-purpose 8-bit microprocessor bus-
ses
• TTL level input (one microcomputer side)
• Interrupt output
• Schmitt input (RESET, CS, SIN)
• Pin arrangement is fully compatible with M66011FP
• Low power dissipation
• Wide operating temperature range (Ta = –20 to 75˚C)
APPLICATION
Microcomputer I/O port extension, etc.
PIN CONFIGURATION (TOP VIEW)
RESET INPUT RESET 1
WRITE INPUT WR 2
CHIP SELECT
INPUT
CS 3
D0 4
D1 5
D2 6
DATA BUS
D3 7
D4 8
D5 9
D6 10
D7 11
GND 12
24 VCC
23 RD READ INPUT
22 A0
21 A1
ADDRESS INPUT
20 SCLK SHIFT CLOCK OUTPUT
19 SOUT SERIAL DATA OUTPUT
18 SIN SERIAL DATA INPUT
17 OE OUTPUT ENABLE OUTPUT
16 INT INTERRUPT OUTPUT
15 Xin CLOCK INPUT
14 Xout CLOCK OUTPUT
13 VCC
Outline 24P2N-B
BLOCK DIAGRAM
A1 A0
21 22
RESET INPUT RESET 1
CHIP SELECT INPUT CS 3
WRITE INPUT WR 2
READ INPUT RD 23
CLOCK INPUT
Xin
15
CLOCK OUTPUT
14
Xout
Timing
control
circuit
Oscillation
circuit
CLK, LOAD
Shift register for lower
byte serial output (8 bits)
SRL
CLK, LOAD
Shift register for upper
byte serial output (8 bits)
SRU
SHIFT CLOCK OUTPUT
20 SCLK
16 INT INTERRUPT OUTPUT
17 OE
OUTPUT ENABLE OUTPUT
19 SOUT
SERIAL DATA OUTPUT
DATA BUS
D0 4
D1 5
D2 6
D3 7
D4 8
D5 9
D6 10
D7 11
8
8
8
X8
Read
register
CLK
Shift register for serial
input (16 bit)
18 SIN
SERIAL DATA INPUT
8
1