Datasheet M54975P, M54975FP Datasheet (Mitsubishi)

MITSUBISHI <CONTROL / DRIVER IC>

M54975P/FP

Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER

DESCRIPTION

The M54975 is a semiconductor integrated circuit fabricated using
Bi-CMOS technology. It contains a serial input to serial/parallel
output 8-bit CMOS shift register and CMOS latch as well as bipolar
8-bit parallel-output driver.

FEATURES

● Serial input to serial/parallel output

● Cascade connections possible through serial output

● Latch circuit included for each stage

● Enable input for output control

● Low supply current .................................. ICC ≥ 10µA at standby

● Serial input/output level is compatible with standard CMOS

● Driver : Withstand voltage ...................................... BVCEO ≥ 30V

Large drive current ................................ (IO(max)=300mA)

● Wide operating temperature range ..................... Ta=-20 – +75°C

APPLICATION

Thermal printer head dot driver, Serial-to parallel conversion, Relay
and Solenoid driver

FUNCTION

The M54975 consists of an 8-bit D-type flip-flop, the output of
which is connected to 8 latches.
When data is applied to the serial data input (S-IN) and a clock
pulse is applied to clock input (T), an “L” to “H” change of the clock
will cause the data input signals to enter the internal shift registers
and the data in the shift registers will be shifted in order.

PIN CONFIGURATION (TOP VIEW)

S-IN

L-GND

V

S-OUT

LATCH

EN

P-GND

T

→

1

→

2
3

M54975P

CC

4

←

→

Outline

16P4(P)

O1

→

16

O2

→

15

O3

→

14

→

O4

13

→

125

→

116

→

107

→

98

Parallel outputs

O5
O6
O7
O8

16P2N-A(FP)

Clock

Serial input

Logic GND

Serial output

Latch input

Enable input

Driver GND

Using a number of M54975 units for bit expansion in series will
entail connecting serial output (S-OUT) to S-IN of the next-stage
M54975.
In parallel output, when the latch input is set to “H” and the output­control input (enable input EN) is “L”, a clock pulse changing from
“L” to “H” will cause the serial data input signal to appear at output
O1, and the data will be shifted in order at outputs O2 – O8.
The parallel output will yield a signal that is inverted with respect to
the serial data input.
Setting the LATCH input to “L” will prevent data from entering the
latch.
When the EN input is set to “H”, all outputs (O1 – O8) will be set to
OFF. Since the internal logic state of the IC is uncertain at power­on time, set the EN input to “H” (and outputs O1 – O8 will set to

BLOCK DIAGRAM

Power supply

CC

V

ENEnable input

LATCHLatch input

S-INSerial input

Parallel outputs

O1

O2

O3

O4

O5

O6

O7

O8

16

15 14 13 12 11 10 9

4

7

Q

Q

Q

Q

Q

Q

Q

Q

L D

L D

L D

L D

L D

L D

L D

L D

6

2

TClock

1

3

L-GND
Logic GND

QTD

QTD

QTD

QTD

QTD

QTD

QTD

QTD

8

5

Driver GNDP-GND

Serial outputS-OUT

MITSUBISHI <CONTROL / DRIVER IC>

M54975P/FP

Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER

OFF) until the input data is set and the internal logic state has been
determined.
L-GND is the ground of the CMOS logic circuit section and P-GND

TIMING CHART

S-IN

T

LATCH

EN

O1

O2

O3

O4

O5

O6

O7

O8

is the ground for the output driver section (O1 – O8), which is
made up of bipolar transistors that are capable of driving large
currents.

S-OUT

*

The state of the shaded part is unstable.

INPUT/OUTPUT CIRCUIT DIAGRAM

1

3 4

Inputs with pullup resistor
(EN, LATCH)

RIN

Serial output
(S-OUT)

VCC

VCC

L-GND

2

Inputs with pulldown resistor
(T, S-IN)

RIN

VCC

L-GND

Parallel outputs
(O1 – O8)

1.5kΩ

L-GND

P-GND

L-GND

Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER

ABSOLUTE MAXIMUM RATINGS (Ta=-20 to 75°C)

Symbol Ratings UnitParameter Conditions

MITSUBISHI <CONTROL / DRIVER IC>

M54975P/FP

VCC
VI

VO
IO
Pd
Topr

Tstg

Supply voltage
Input voltage

Output voltage
Output current
Power dissipation
Operating temperature

Storage temperature

S-OUT
O1 – O8 : OFF
O1 – O8 : ON

T

a=25°C

M54975P
M54975FP

RECOMMENDED OPERATING DONDITION

Symbol

VCC
VO

IO

Parameter

Supply voltage
Applied output voltage

Output current (per circuit)

O1 – O8 : OFF
M54975P

M54975FP

Conditions

ELECTRICAL CHARACTERISTICS (Ta=25°C, VCC=5V, unless otherwise noted)

Symbol

VIH
VIL

IN

R
VOH
VOL
IOH
IOL
VOL1
VOL2
VOL3
IOLK
ICC1
ICC2

High-level input voltage
Low-level input voltage
Input resistance
High-level output voltage
Low-level output voltage
High-level output current
Low-level output current

Low-level output voltage

Output leak current
Supply current

S-OUT
S-OUT
S-OUT
S-OUT

O1 – O8

O1 – O8

T

a=-20 – 75°C

|IO|≤1µA

OH=4.5V

V
VOL=0.4V

OL=100mA

I
I

OL=200mA
OL=300mA

I

O=30V

V
Input: open, All driver outputs: OFF
One driver output is ON.

Test conditions

-0.5 – +8

-0.5 – V

CC+0.5

-0.5 – V

CC+0.5

-0.5 – +30
350

1.25

0.8

-20 – 75

-55 – 125

Limits

Min. Typ. Max.

456

30
300
100

Limits

Min. Typ. Max.

0.7V

CC

0

50

4.9
—

-100
400

—
—
—
—
—
—

CC

V

0.3VCC
—
—

0.1
—
—

1.2

1.4

1.6

50
10

1.7

V
V

V

mA

W

°C
°C

Unit

V
V

mA

UnitParameter

V
V

kΩ

V
V

µA
µA

V
V
V

µA
µA

mA

TIMING REQUIREMENTS (Ta=-20 to 75°C, unless otherwise noted)

Symbol

f(T)
tw(T)
tw(L)
tsu
th
td(T-L)
tr(T)
tf(T)

Parameter

Clock frequency
Clock pulse width
Latch pulse width
Data setup time
Data hold time
Clock-latch time
Clock pulse rise time
Clock pulse fall time

Input duty: 40 – 60%

Test conditions

Limits

Min. Typ. Max.

2
200
200
100
100
400

500
500

Unit

MHz

ns
ns
ns
ns
ns
ns
ns

TIMING CHART

MITSUBISHI <CONTROL / DRIVER IC>

M54975P/FP

Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER

Serial input

Clock

Latch input

S-IN

LATCH

2.5V

tsu

T

t

h

2.5V 2.5V

t

w

(T) tr(T)

t

d

(T-L)

2.5V

2.5V 2.5V

t

w

(L)

10%

SWITCHING CHARACTERISTICS (Ta=25°C, VCC=5V, unless otherwise noted)

Symbol Test conditions

tPLH

tPHL

tPLH

tPHL

tPLH

tPHL

Low-to-high-level output propagation time
From input T to output S-OUT

High-to-low-level output propagation time
From input T to output S-OUT

Low-to-high-level output propagation time
From input T to output O

High-to-low-level output propagation time
From input T to output ON
Low-to-high-level output propagation time
From input EN to output ON
High-to-low-level output propagation time
From input EN to output ON

Parameter

N

VIH=5V
VIL=0V
RL(S-OUT)=∞
RL(ON)=100Ω

(N=1–8)

CL=15pF

90%

90%

t

f

10%

(T)

Limits

Min. Typ. Max.

0.3

0.3

10

2

10

2

Unit

µs

µs

µs

µs

µs

µs

TEST CIRCUIT

PG

TIMING CHART

Serial output

Enable input

Output

Clock

Input

50Ω

S-OUT

EN

ON

V

M54975P/FP

T

CC

The input waveform: tr ≤ 20ns, tf ≤ 20ns
The capacitance C

and probe input capacitance.

2.5V

tPHL

2.5V

2.5V

L includes the wiring stray capacitance

2.5V

2.5V

tPLHtPHL

2.5V

t

PHL

2.5V

2.5V

tPLH

RL

Output

CL

2.5V

t

PLH

2.5V

Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER

TYPICAL CHARACTERISTICS (VCC=5V, unless otherwise noted)

MITSUBISHI <CONTROL / DRIVER IC>

M54975P/FP

Thermal derating

(Absolute maximum rating)

1.5
M54975P

1.0
M54975FP

0.5

Power dissipation Pd (W)

0

0

25 50 75 100

Ambient temperature Ta (°C)

Duty cycle vs. allowable output current

(M54975P)

400

300

200

T

a = 25°C

Repetitive frequency >10H

100

Output current Io (mA)

Each figure in a circle shows
the number of output circuits which
operate simultaneously.
Current value : output current per circuit

0

0 20 40 60 80 100

Z

–

1 3

4

5
6

7
8

Driver output VOL vs. IOL

400

Ta = -20°C

OL (mA)

300

Ta = 25°C
Ta = 75°C

200

100

Low-level output current I

0

0 0.5 1.5

1.0

Low-level output voltage VOL (V)

Duty cycle vs. allowable output current

(M54975P)

400

300

200

T

a = 75°C

100

Output current Io (mA)

Repetitive frequency >10HZ
Each figure in a circle shows
the number of output circuits which
operate simultaneously.
Current value : output current per circuit

0

0 20 40 60 80 100

1

2

3
4

5
6

7

8

Duty cycle (%)

Duty cycle vs. allowable output current

(M54975FP)

200
180
160
140
120
100

80

Ta = 25°C
Repetitive frequency >10H

60

Output current Io (mA)

Each figure in a circle shows
the number of output circuits which

40

operate simultaneously.

20

Current value : output current per circuit

CC = 5.5V

V

0

0 20 40 60 80 100

Duty cycle (%)

Z

Duty cycle (%)

Duty cycle vs. allowable output current

(M54975FP)

200
180
160
140
120

– –

1 6
7
8

100

80

T

a = 75°C

Repetitive frequency >10H

60

Output current Io (mA)

Each figure in a circle shows
the number of output circuits which

40

operate simultaneously.

20

Current value : output current per circuit

CC = 5.5V

V

0

0 20 40 60 80 100

Z

Duty cycle (%)

1 4

5
6
7
8