MITSUBISHI <CONTROL / DRIVER IC>
M54610P
8-BIT PARALLEL DATA INTERFACE FOR PRINTER
DESCRIPTION
The M54610P is a semiconductor integrated circuit consisting of an
8-bit parallel data interface function.
FEATURES
●I/O electrical characteristics equivalent to LSTTL
●3-state 8-bit data output
●Strobe signal with polarity switching input
●Wide operating temperature range Ta = -20 – +75°C
APPLICATION
Printer
FUNCTION
The M54610P, when used in a printer, is capable of implementing
a standard 8-bit parallel data interface. As shown in the timing
diagram, printing data DIN 1 through 8 and strobe pulses STB are
input from a host computer. Data are exchanged by outputing the
BUSY and ACK (ACKNOWLEDGE) signals to the host computer.
Control signals EBSY, CS, WR, RD and ACKI are input from a
printer controller, and this IC outputs DOU 1 through 8, and BSYF.
PIN CONFIGURATION(TOP VIEW
Buffer 1 input
Buffer 2 output
Buffer 2 input
Buffer 5 output
Buffer 3 input
Buffer 4 output
Buffer 1 output
BUSY output
ACKNOWLEDGE
Strobe switch input
output
Data inputs
Strobe input
BI1
BO2
BI2
BO5
BI3
GND
BO4
BO1
BUSY
ACK
DIN8
DIN7
DIN6
DIN5
DIN4
DIN3
DIN2
DIN1
STB
PSW
GND
→
←
→
←
→
←
←
←
←
→
→
→
→
→
→
→
→
→
→
1
2
3
4
42
41
40
39
385
376
7
8
36
35
349
M54610P
3310
3211
3112
13
14
30
29
15 28
16
17
27
26
18 25
19
20
21
24
23
22
←
→
→
←
→
←
←
←
←
←
←
→
→
→
→
→
→
→
→
VCC
Buffer 5 input
BI5
Buffer 3 output
BO3
READY output
RDY
Buffer 4 input
BI4
BUSY flag output
BSYF
Ext. BUSY input
EBSY
GND
BUSY select input
BSSL
ACKNOWLEDGE
ACKI
input
Chip select input
CS
Write input
WR
Read input
RD
DOU8
DOU7
DOU6
DOU5
DOU4
DOU3
DOU2
DOU1
Data outputs
Outline 42P4B
BLOCK DIAGRAM
Buffer 1 input
Buffer 2 input
Buffer 3 input
BI1
BO2Buffer 2 output
BI2
BO5Buffer 5 output
BI3
GND
BO4Buffer 4 output
BO1Buffer 1 output
BUSYBUSY output
1
2
3
4
5
6
7
8
9
IA
OD
IR
OR
IR
OR
OR
OR
4.7k x 7
MITSUBISHI <CONTROL / DRIVER IC>
8-BIT PARALLEL DATA INTERFACE FOR PRINTER
“H” “H”
DQ
T
R
QDT
R
10k x 5
M54610P
42
VCC
IRR
41
BI5 Buffer 5 input
OA
40
BO3 Buffer 3 output
OA
39
RDY
IRR
38
BI4 Buffer 4 input
OA
37
BSYF BUSY flag output
IRR
36
EBSY Ext. BUSY input
35
GND
IRR
34
BSSL
READY output
BUSY select
input
ACKNOWLEDGE
output
Data
inputs
Strobe input
Strobe switch
input
ACK
DIN8
DIN7
DIN6
DIN5
DIN4
DIN3
DIN2
DIN1
STB
PSW
OR
10
4.7k x 8
IR
11
IR
12
IR
13
IR
14
IR
15
IR
16
IR
17
IR
18
IS
19
10k
20
IRR
21
GND
8D 8Q
7D 7Q
6D 6Q
5D 5Q
4D 4Q
3D 3Q
2D 2Q
1D 1Q
T
Note : IA, OD, and other marking at the I/O pins indicate the output circuit type.
IRR
IAA
OZ
OZ
OZ
OZ
OZ
OZ
OZ
OZ
33
32
IA
31
IA
30
29
28
27
26
25
24
23
22
ACKNOWLEDGE
ACKI
input
Chip select
CS
input
WR Write input
RD Read input
DOU8
DOU7
DOU6
DOU5
Data
outputs
DOU4
DOU3
DOU2
DOU1
I/O CIRCUIT DIAGRAM
MITSUBISHI <CONTROL / DRIVER IC>
M54610P
8-BIT PARALLEL DATA INTERFACE FOR PRINTER
1
Input circuit form: IA, IAA
Input
IAA only
FI : 2
3
Input circuit form: IS
Input
VCC
GND
VCC
2
Input circuit form: IR, IRR
Input
4
Output circuit form: OA
VCC
VCC
GND
Output
5
Output circuit form: OR, OD
CC
V
GND
Resistance
is infinite
for OD
circuit
Output
GND
GND
6
Output circuit form: OZ
VCC
GND
Output