Datasheet MC14C88BD, MC14C88BP Datasheet (Motorola)

Device

Operating

Temperature Range

Package



SEMICONDUCTOR

TECHNICAL DATA

QUAD LOW POWER

LINE DRIVER

ORDERING INFORMATION

MC14C88BP
MC14C88BD

TA = – 40° to +85°C

Plastic DIP

SO–14

PIN CONNECTIONS

Order this document by MC14C88B/D

P SUFFIX

PLASTIC PACKAGE

CASE 646

D SUFFIX

PLASTIC PACKAGE

CASE 751A

(SO–14)

(Top View)

Output A

Input A

1

V

EE

2

3

Input B1

Input B2

Output B

Gnd

4

5

6

7

14

Input D1

Input D2

12

13

V

CC

Input C1

Output D

Input C2

Output C

8

9

11

10

1

MOTOROLA ANALOG IC DEVICE DATA

    

The MC14C88B is a low power monolithic quad line driver, using BiMOS
technology, which conforms to EIA–232–D, EIA–562, and CCITT V.28. The
inputs feature TTL and CMOS compatibility with minimal loading. The
outputs feature internally controlled slew rate limiting, eliminating the need
for external capacitors. Power off output impedance exceeds 300 W, and
current limiting protects the outputs in the event of short circuits.

Power supply current is less than 160 mA over the supply voltage range of
±4.5 to ±15 V. EIA–232–D performance is guaranteed with a minimum
supply voltage of ±6.5 V.

The MC14C88B is pin compatible with the MC1488, SN75188,
SN75C188, DS1488, and DS14C88. This device is available in 14 pin plastic
DIP, and surface mount packaging.

Features:

• BiMOS Technology for Low Power Operation (

t

5.0 mW)

• Meets Requirements of EIA–232–D, EIA–562, and CCITT V.28

• Quiescent Current Less Than 160

m

A

• TTL/CMOS Compatible Inputs

• Minimum 300

W

Output Impedance when Powered Off

• Supply Voltage Range: ±4.5 to ±15 V

• Pin Equivalent to MC1488

• Current Limited Output: 10 mA Minimum

• Operating Ambient Temperature: –40° to 85°C

Representative Block Diagram

(Each Driver)

V

EE

39 39

Switching

Control

Output250

V

CC

Slew Rate

Control

45

Input 2

Input 1

 Motorola, Inc. 1996 Rev 0

MC14C88B

2

MOTOROLA ANALOG IC DEVICE DATA

MAXIMUM RATINGS (T

A

= +25°C, unless otherwise noted.)

Rating Symbol Value Unit

Power Supply Voltage

V

CC(max)

V

EE(min)

(VCC – VEE)

max

V

CC

V

EE

VCC – V

EE

+17
–17

34

Vdc

Input Voltage (All Inputs) V

in

VEE–0.3, VEE+39 Vdc

Applied Output Voltage, when VCC=VEE0

0 V

Applied Output Voltage, when VCC=VEE=0 V

V

X

VEE–6.0 V , VCC+6.0 V

±15

Vdc

Output Current I

O

Self Limiting mA

Operating Junction Temperature T

J

– 65, + 150 °C

Devices should not be operated at these limits. The “Recommended Operating Conditions” table provides
for actual device operation.

RECOMMENDED OPERATING CONDITIONS

Characteristic Symbol Min Typ Max Unit

Power Supply Voltage V

CC

V

EE

+4.5

–15

–
–

+15

–4.5

Vdc

Input Voltage (All Inputs) V

in

0 – V

CC

Vdc

Applied Output Voltage (VCC=VEE=0 V) V

O

–2.0 0 +2.0 Vdc

Output DC Load R

L

3.0 – 7.0 kΩ

Operating Ambient Temperature Range T

A

–40 – +85 °C

All limits are not necessarily functional concurrently.

ELECTRICAL CHARACTERISTICS (–40°C

p

TA p+85°C, unless otherwise noted.)*

Characteristic Symbol Min Typ Max Unit

Supply Current (I

out

= 0, see Figure 2)

ICC @ 4.75 V p VCC, –VEE p 15 V

Outputs High
Outputs Low

I

EE

Outputs High
Outputs Low

ICC

(OH)

ICC

(OL)

IEE

(OH)

IEE

(OL)

–
–

–160
–160

–
–

–
–

160
160

–
–

µA

Output Voltage – High, Vin p0.8 V (RL = 3.0 kΩ , see Fi gure 3)

VCC = +4.75 V , VEE = –4.75 V
VCC = +5.0 V , VEE = –5.0 V
VCC = +6.5 V , VEE = –6.5 V
VCC = +12 V , VEE = –12 V
VCC = +13.2 V , VEE = –13.2 V (RL = ∞)

Output Voltage – Low, Vin q2.0 V

VCC = +4.75 V , VEE = –4.75 V
VCC = +5.0 V , VEE = –5.0 V
VCC = +6.5 V , VEE = –6.5 V
VCC = +12 V , VEE = –12 V
VCC = +13.2 V , VEE = –13.2 V (RL = ∞)

V

OH

V

OL

3.7

4.0

5.0
10

–

–
–
–
–

–13.2

3.8

4.3

6.1

10.5

13.2

–3.8
–4.2

–6.0
–10.5
–13.2

–
–
–
–

13.2

–3.7
–4.0
–5.0

–10

–

Vdc

Output Short Circuit Current** (see Figure 4) (VCC =VEE = 15 V )

Normally High Output, shorted to ground
Normally Low Output, shorted to ground

I

OS

–35
+10

–
–

–10
+35

mA

Output Source Resistance

(VCC = VEE = 0 V, –2.0 V p V

out

p+2.0 V)

R

O

300 – – Ω

Input Voltage

Low Level
High Level

V

IL

V

IH

0

2.0

–
–

0.8

V

CC

Vdc

* Typicals reflect performance @ TA = 25°C
** Only one output shorted at a time, for not more than 1 second.

MC14C88B

3

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS (continued) (–40°C

p

TA p +85°C, unless otherwise noted.)*

Characteristic Symbol Min Typ Max Unit

Input Current

Vin = 0 V, VCC = VEE = 4.75 V
Vin = 0 V, VCC = VEE = 15 V
Vin = 4.5 V , VCC = VEE = 4.75 V
Vin = 4.5 V , VCC = VEE = 15 V

I

in

–10
–10

0
0

–0.1

–0.1

+0.1

+0.1

0

0
+10
+10

µA

TIMING CHARACTERISTICS (–40°C

p

TA p +85°C, unless otherwise noted.)*

Characteristic

Symbol Min Typ Max Unit

Output Rise Time

VCC = 4.75 V , VEE = –4.75 V

–3.3 V pVO p 3.3 V

CL = 15 pF
CL = 1000 pF

–3.0 V pVO p 3.0 V

CL = 15 pF
CL = 1000 pF

VCC = 12.0 V , VEE = –12.0 V

–3.0 V pVO p 3.0 V

CL = 15 pF
CL = 2500 pF

10% pVO p 90%

CL = 15 pF

t

R1

t

R2

t

R3

0.22

0.22

0.20

0.20

0.20

0.20

0.53

0.66

1.52

0.51

1.16

0.62

0.82

1.41

2.1

2.1

1.5

1.5

1.5

1.5

3.2

µs

Output Fall Time

VCC = 4.75 V , VEE = –4.75 V

3.3 V pVO p –3.3 V
CL = 15 pF
CL = 1000 pF

3.0 V pVO p –3.0 V
CL = 15 pF
CL = 1000 pF

VCC = 12.0 V , VEE = –12.0 V

3.0 V pVO p –3.0 V
CL = 15 pF
CL = 2500 pF

90% pVO p 10%

CL = 15 pF

t

F1

t

F2

t

F3

0.22

0.22

0.20

0.20

0.20

0.20

0.53

0.93

1.28

0.72

1.01

0.70

0.94

1.71

2.1

2.1

1.5

1.5

1.5

1.5

3.2

µs

Output Slew Rate, 3.0 kΩ t RL t 7.0 kΩ , 15 pF t CL t 2500 pF S

R

4.0 – 30 V/µs

Propagation Delay A (CL = 15 pF, see Figure 1)

VCC = 12.0 V , VEE = –12.0 V

Input to Output – Low to High
Input to Output – High to Low

Propagation Delay B (CL = 15 pF, see Figure 1)

VCC = 4.75 V , VEE = –4.75 V

Input to Output – Low to High
Input to Output – High to Low

t

PLH

t

PHL

t

PLH

t

PHL

–
–

–
–

0.9

2.3

0.4

1.5

3.0

3.5

2.0

2.5

µs

* Typicals reflect performance @ TA = 25°C

MC14C88B

4

MOTOROLA ANALOG IC DEVICE DATA

Figure 1. Timing Diagram

t

R3

V

OH

t

F3

t

F1

t

F2

t

PHL

1.5 V

0 V

S.G.

3.0 V

V

OUT

C

L

3.0 k

V

CC

V

EE

S.G.

–3.3 V

t

PLH

90%

3.3 V

3.0 V

–3.0 V

10%

t

R2

t

R1

0 V

V

OL

NOTES: S.G. set to: f = 20 kHz for Propogation Delay A

and f = 64 kHz for Propagation Delay B; Duty
Cycle = 50%; tR, tFp

5.0 ns

V

out

STANDARDS COMPLIANCE

The MC14C88 is designed to comply with EIA–232–D
(formerly RS–232), the newer EIA–562 (which is a higher
speed version of the EIA–232), and CCITT’s V.28. EIA–562
was written around modern integrated circuit technology,
whereas EIA–232 retains many of the specs written around

the electro–mechanical circuitry in use at the time of its
creation. Yet the user will find enough similarities to allow a
certain amount of compatibility among equipment built to the
two standards. Following is a summary of the key
specifications relating to the systems and the drivers.

Parameter EIA–232–D EIA–562

Maximum Data Rate 20 kbaud 38.4 kbaud Asynchronous

64 kbaud Synchronous
Maximum Cable Length 50 feet Based on cable capacitance/data rate
Maximum Slew Rate

p

30 V/µs anywhere on the waveform

p

30 V/µs anywhere on the waveform

q

4.0 V/µs between +3.0 and –3.0 V
Transition Region –3.0 to +3.0 V –3.3 to +3.3 V
Transition Time For UI q 25 ms, tR p1.0 ms

For 25 ms > UI > 125 µs, tR

p

4% UI

For UI t 125 µs, tR

p

5.0 µs

For UI q 50 µs, 220 ns t tR p 3.1 µs
For UI t 50 µs, 220 ns t tR p 2.1 µs
(within the transition region)

MARK (one, off) More negative than –3.0 V More negative than –3.3 V
Space (zero, on) More positive than +3.0 V More positive than +3.3 V
Short Circuit Proof ? Yes, to any system voltage Yes, to ground
Short Circuit Current

p

500 mA to any system voltage

p

60 mA to ground
Open Circuit Voltage VOC p25 V VOC t 13.2 V
Loaded Output Voltage 5.0 V p VO p15 V for loads between

3.0 kΩ and 7.0 kΩ

VO q3.7 V for a load of 3.0 kΩ

Power Off Input Source Impedance

q

300 Ω for  VO p2.0 V

q

300 Ω for  VO p2.0 V

NOTE: UI = Unit Interval, or bit time.

V.28 standard has the same specifications as EIA–232, with the exception of transition time which is listed as “less than 1.0 ms, or 3% of the UI,
whichever is less”.

MC14C88B

5

MOTOROLA ANALOG IC DEVICE DATA

Figure 2. Typical Supply Current

versus Supply Voltage

Figure 3. Typical Output Voltage

versus Supply Voltage

Figure 4. Typical Short Circuit Current

versus Supply Voltage

Figure 5. Typical Output Voltage

versus Temperature

OUTPUT VOLTAGE (V)

–4.0

ISC Normally High Output

1

2

3

1

2

3

1–RL = 3.0 k

Ω

2–RL = 7.0 k

Ω

3–RL =

∞

1–RL =

∞

2–RL = 7.0 k

Ω

3–RL = 3.0 k

Ω

16

85

–15

–40

TA, AMBIENT TEMPERATURE (°C)

22

VCC AND –VEE, (V)

161412106.0 8.04.0

–30

I

EE(OH)

VOH @ VCC = –VEE = 12 V

I

SC

ISC Normally Low Output

V

in

(0.8 or 2.0 V)

V

in

(0.8 or 2.0 V)

V

OL

V

out

V

CC

V

EE

R

L

V

OH

8.0

–16

VCC AND –VEE, (V)

4.0 6.0 8.0 10 12 14

–12

–10

12

4.0

16

–8.0

I

CC(OH)

30

I

EE(OL)

VOL @ VCC = –VEE = 4.5 V

VOH @ VCC = –VEE = 4.5 V

–10

5.0

10

–5.0

15

VOL @ VCC = –VEE = 12 V

0

I

CC(OL)

–55

0

55

4.0

–110

8.06.0 10 12 14 16
VCC AND –VEE, (V)

20

V

EE

0

10

V

CC

–20

0

RL = 3.0 k

Ω

110

I

SC

, SHORT CIRCUIT CURRENT (mA)

, I

EE

, SHORT CIRCUIT CURRENT ( A)I

CC

OUTPUT VOLTAGE (V)

µ

MC14C88B

6

MOTOROLA ANALOG IC DEVICE DATA

APPLICATIONS INFORMATION

Description

The MC14C88 was designed to be a direct replacement
for the MC1488 in that it meets all EIA–232 specifications.
However, use is extended as the MC14C88 also meets the
faster EIA–562 and CCITT V.28 specifications. Slew rate
limited outputs conform to the mentioned specifications and
eliminate the need for external output capacitors. Low
power consumption is made possible by BiMOS technology .
Power supply current is limited to less than 160 mA, plus
load currents over the supply voltage range of ±4.5 V to
±15 V (see Figure 2).

Outputs

The output low or high voltage depends on the state of the
inputs, the load current, and the supply voltage (see Table 1
and Figure 3). The graphs apply to each driver regardless of
how many other drivers within the package are supplying
load current.

Table 1. Function Tables

Driver 1

Input A Output A

H
L

L

H

Drivers 2 through 4

Input *1 Input *2 Output*

H

L
X

H
X

L

L
H
H

H = High level, L = Low level, X = Don’t care.

Driver Inputs

The driver inputs determine the state of the outputs in
accordance with Table 1. The nominal threshold voltage for
the inputs is 1.4 Vdc, and for proper operation, the input
voltages should be restricted to the range Gnd to VCC.
Should the input voltage drop below VEE by more than 0.3 V

or rise above VEE by more than 39 V , excessive currents will
flow at the input pin. Open input pins are equivalent to logic
high, but good design practices dictate that inputs should
never be left open.

Operating Temperature Range

The ambient operating temperature range is listed at –40°
to +85°C and meets EIA–232–D, EIA–562 and CCITT V.28
specifications over this temperature range. The maximum
ambient temperature is listed as +85°C. However, a lower
ambient may be required depending on system use, i.e.
specifically how many drivers within a package are used, and
at what current levels they are operating. The maximum
power which may be dissipated within the package is
determined by:

P

Dmax

+

T

Jmax–TA

R

q

JA

where: R

θJA

= the package thermal resistance (typically,

where: 100°C/W for the DIP package, 125°C/W for the
where: SOIC package);
where: T

Jmax

= the maximum operating junction

where: temperature (150°C); and
where: TA = the ambient temperature.

PD = { [ (VCC – VOH) IOH ] or [ (VOL – VEE)

PD = IOL ]}

each driver

+ (VCC ICC) + (VEE IEE)

where: VCC and VEE are the positive and negative

where: supply voltages;
where: VOH and VOL are measured or estimated from
where: Figure 3;
where: ICC and IEE are the quiescent supply currents
where: measured or estimated from Figure 2.

As indicated, the first term (in brackets) must be calculated
and summed for each of the four drivers, while the last terms
are common to the entire package.

MC14C88B

7

MOTOROLA ANALOG IC DEVICE DATA

OUTLINE DIMENSIONS

NOTES:

1. LEADS WITHIN 0.13 (0.005) RADIUS OF TRUE
POSITION AT SEATING PLANE AT MAXIMUM
MATERIAL CONDITION.

2. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.

3. DIMENSION B DOES NOT INCLUDE MOLD
FLASH.

4. ROUNDED CORNERS OPTIONAL.

17

14 8

B

A

F

HG D

K

C

N

L

J

M

SEATING
PLANE

DIM MIN MAX MIN MAX

MILLIMETERSINCHES

A 0.715 0.770 18.16 19.56
B 0.240 0.260 6.10 6.60
C 0.145 0.185 3.69 4.69
D 0.015 0.021 0.38 0.53
F 0.040 0.070 1.02 1.78
G 0.100 BSC 2.54 BSC
H 0.052 0.095 1.32 2.41
J 0.008 0.015 0.20 0.38
K 0.115 0.135 2.92 3.43
L 0.300 BSC 7.62 BSC
M 0 10 0 10
N 0.015 0.039 0.39 1.01

____

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.

5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.

–A–

–B–

G

P

7 PL

14 8

71

M

0.25 (0.010) B

M

S

B

M

0.25 (0.010) A

S

T

–T–

F

R

X 45

SEATING
PLANE

D 14 PL

K

C

J

M

_

DIM MIN MAX MIN MAX

INCHESMILLIMETERS

A 8.55 8.75 0.337 0.344
B 3.80 4.00 0.150 0.157
C 1.35 1.75 0.054 0.068
D 0.35 0.49 0.014 0.019
F 0.40 1.25 0.016 0.049
G 1.27 BSC 0.050 BSC
J 0.19 0.25 0.008 0.009
K 0.10 0.25 0.004 0.009
M 0 7 0 7
P 5.80 6.20 0.228 0.244
R 0.25 0.50 0.010 0.019

____

P SUFFIX

PLASTIC PACKAGE

CASE 646–06

ISSUE L

D SUFFIX

PLASTIC PACKAGE

CASE 751A–03

(SO–14)
ISSUE F

MC14C88B

8

MOTOROLA ANALOG IC DEVICE DATA

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the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
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MC14C88B/D

*MC14C88B/D*

◊