Order this document by MC14C88B/D
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.
QUAD LOW POWER
LINE DRIVER
SEMICONDUCTOR
TECHNICAL DATA
Features:
• BiMOS Technology for Low Power Operation ( 5.0 mW)
•
•
•
•
•
•
•
•
t
Meets Requirements of EIA–232–D, EIA–562, and CCITT V.28
Quiescent Current Less Than 160 mA
P SUFFIX
PLASTIC PACKAGE
CASE 646
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
D SUFFIX
PLASTIC PACKAGE
CASE 751A
(SO–14)
Operating Ambient Temperature: –40° to 85°C
PIN CONNECTIONS
Representative Block Diagram
(Each Driver)
VCC
VEE
1
14
VCC
Input A
2
13
Input D1
Output A
3
12
Input D2
Input B1
4
11
Output D
Input B2
5
10
Input C1
Output B
6
9
Input C2
Gnd
7
8
Output C
(Top View)
45
Input 1
250
Output
Slew Rate
Control
ORDERING INFORMATION
Input 2
39
39
Switching
Control
Device
VEE
MC14C88BP
MC14C88BD
Operating
Temperature Range
TA = – 40° to +85°C
Motorola, Inc. 1996
MOTOROLA ANALOG IC DEVICE DATA
Package
Plastic DIP
SO–14
Rev 0
1
MC14C88B
MAXIMUM RATINGS (TA = +25°C, unless otherwise noted.)
Rating
Power Supply Voltage
VCC(max)
VEE(min)
(VCC – VEE)max
Symbol
Value
VCC
VEE
VCC – VEE
+17
–17
34
Unit
Vdc
Input Voltage (All Inputs)
Vin
0
VEE–0.3, VEE+39
Vdc
Applied Output Voltage, when VCC=VEE 0 V
Applied Output Voltage, when VCC=VEE = 0 V
VX
VEE–6.0 V, VCC+6.0 V Vdc
±15
Output Current
IO
Self Limiting
mA
Operating Junction Temperature
TJ
– 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
VCC
VEE
+4.5
–15
–
–
+15
–4.5
Vdc
Input Voltage (All Inputs)
Vin
0
–
VCC
Vdc
Applied Output Voltage (VCC=VEE=0 V)
VO
–2.0
0
+2.0
Vdc
Output DC Load
RL
3.0
–
7.0
kΩ
Operating Ambient Temperature Range
TA
–40
–
+85
°C
Typ
Max
Unit
Power Supply Voltage
All limits are not necessarily functional concurrently.
ELECTRICAL CHARACTERISTICS (–40°C
p TA p+85°C, unless otherwise noted.)*
Characteristic
Supply Current (Iout = 0, see Figure 2)
ICC @ 4.75 V
VCC, –VEE
15 V
Outputs High
Outputs Low
IEE
Outputs High
Outputs Low
p
p
p
Symbol
Min
µA
ICC (OH)
ICC (OL)
–
–
–
–
160
160
IEE (OH)
IEE (OL)
–160
–160
–
–
–
–
3.7
4.0
5.0
10
–
3.8
4.3
6.1
10.5
13.2
–
–
–
–
13.2
–
–
–
–
–13.2
–3.8
–4.2
–6.0
–10.5
–13.2
–3.7
–4.0
–5.0
–10
–
–35
+10
–
–
–10
+35
Output Voltage – High, Vin 0.8 V (RL = 3.0 kΩ , see Figure 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 2.0 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 = ∞)
VOH
Output Short Circuit Current** (see Figure 4) (VCC =VEE = 15 V )
Normally High Output, shorted to ground
Normally Low Output, shorted to ground
IOS
Output Source Resistance
(VCC = VEE = 0 V, –2.0 V
RO
300
–
–
Ω
VIL
VIH
0
2.0
–
–
0.8
VCC
Vdc
q
p Vout p+2.0 V)
Input Voltage
Low Level
High Level
Vdc
VOL
mA
* Typicals reflect performance @ TA = 25°C
** Only one output shorted at a time, for not more than 1 second.
2
MOTOROLA ANALOG IC DEVICE DATA
MC14C88B
ELECTRICAL CHARACTERISTICS (continued) (–40°C
p TA p +85°C, unless otherwise noted.)*
Characteristic
Symbol
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
TIMING CHARACTERISTICS (–40°C
Typ
Max
–10
–10
0
0
–0.1
–0.1
+0.1
+0.1
0
0
+10
+10
Min
Typ
Max
Unit
µA
Iin
p TA p +85°C, unless otherwise noted.)*
Characteristic
Output Rise Time
VCC = 4.75 V, VEE = –4.75 V
–3.3 V VO
3.3 V
CL = 15 pF
CL = 1000 pF
–3.0 V VO
3.0 V
CL = 15 pF
CL = 1000 pF
VCC = 12.0 V, VEE = –12.0 V
–3.0 V VO
3.0 V
CL = 15 pF
CL = 2500 pF
10% VO
90%
CL = 15 pF
Symbol
tR1
p p
tR2
p p
p p
Output Fall Time
VCC = 4.75 V, VEE = –4.75 V
3.3 V VO
–3.3 V
CL = 15 pF
CL = 1000 pF
3.0 V VO
–3.0 V
CL = 15 pF
CL = 1000 pF
VCC = 12.0 V, VEE = –12.0 V
3.0 V VO
–3.0 V
CL = 15 pF
CL = 2500 pF
90% VO
10%
CL = 15 pF
p p
tF2
p p
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
0.66
1.52
2.1
2.1
0.20
0.20
0.51
1.16
1.5
1.5
0.20
0.20
0.62
0.82
1.5
1.5
0.53
1.41
3.2
µs
tF1
t RL t 7.0 kΩ , 15 pF t CL t 2500 pF
0.22
0.22
tR3
p p
p p
Unit
µs
p p
Output Slew Rate, 3.0 kΩ
Min
0.22
0.22
0.93
1.28
2.1
2.1
0.20
0.20
0.72
1.01
1.5
1.5
0.20
0.20
0.70
0.94
1.5
1.5
0.53
1.71
3.2
4.0
–
30
tF3
SR
V/µs
µs
tPLH
tPHL
–
–
0.9
2.3
3.0
3.5
tPLH
tPHL
–
–
0.4
1.5
2.0
2.5
* Typicals reflect performance @ TA = 25°C
MOTOROLA ANALOG IC DEVICE DATA
3
MC14C88B
Figure 1. Timing Diagram
3.0 V
S.G.
VCC
1.5 V
0V
tPHL
S.G.
3.0 k
VEE
CL
tPLH
VOUT
3.3 V
3.0 V
NOTES: S.G. set to: f = 20 kHz for Propogation Delay A
and f = 64 kHz for Propagation Delay B; Duty
Cycle = 50%; tR, tF 5.0 ns
p
VOH
90%
Vout
0V
–3.0 V
–3.3 V
tF2
VOL
tF1
tR1
tF3
tR3
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
Parameter
tR2
10%
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.
EIA–232–D
EIA–562
Maximum Data Rate
20 kbaud
38.4 kbaud Asynchronous
64 kbaud Synchronous
Maximum Cable Length
50 feet
Maximum Slew Rate
p 30 V/µs anywhere on the waveform
Based on cable capacitance/data rate
Transition Region
–3.0 to +3.0 V
–3.3 to +3.3 V
Transition Time
For UI
25 ms, tR 1.0 ms
For 25 ms > UI > 125 µs, tR
4% UI
5.0 µs
For UI
125 µs, tR
For UI
50 µs, 220 ns
tR
For UI
50 µs, 220 ns
tR
(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
q
t
p
p
p
Short Circuit Current
p 500 mA to any system voltage
Open Circuit Voltage
VOC
Loaded Output Voltage
5.0 V
VO 15 V for loads between
3.0 kΩ and 7.0 kΩ
Power Off Input Source Impedance
NOTE:
4
p 25 V
p p
q 300 Ω for VO p 2.0 V
p 30 V/µs anywhere on the waveform
q 4.0 V/µs between +3.0 and –3.0 V
q
t
t p 3.1 µs
t p 2.1 µs
p 60 mA to ground
VOC t 13.2 V
VO q 3.7 V for a load of 3.0 kΩ
q 300 Ω for VO p 2.0 V
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”.
MOTOROLA ANALOG IC DEVICE DATA
MC14C88B
Figure 3. Typical Output Voltage
versus Supply Voltage
16
110
12
3
ICC(OL)
12
ICC(OH)
55
OUTPUT VOLTAGE (V)
I CC , I EE, SHORT CIRCUIT CURRENT ( µA)
Figure 2. Typical Supply Current
versus Supply Voltage
0
–55
IEE(OH)
4.0
Vin
(0.8 or 2.0 V)
0
VEE
–4.0
RL
Vout
1 – RL = 3.0 kΩ
2 – RL = 7.0 kΩ
3 – RL = ∞
–8.0
VOL
1
2
3
–16
6.0
8.0
10
12
14
4.0
16
6.0
8.0
10
12
14
16
VCC AND –VEE, (V)
VCC AND –VEE, (V)
Figure 4. Typical Short Circuit Current
versus Supply Voltage
Figure 5. Typical Output Voltage
versus Temperature
15
30
VOH @ VCC = –VEE = 12 V
ISC Normally Low Output
10
20
OUTPUT VOLTAGE (V)
I SC , SHORT CIRCUIT CURRENT (mA)
1 – RL = ∞
2 – RL = 7.0 kΩ
3 – RL = 3.0 kΩ
VCC
4.0
–12
IEE(OL)
–110
VOH
8.0
VCC
10
Vin
(0.8 or 2.0 V)
0
ISC
VEE
–10
–20
VOH @ VCC = –VEE = 4.5 V
5.0
0
VOL @ VCC = –VEE = 4.5 V
–5.0
VOL @ VCC = –VEE = 12 V
–10
RL = 3.0 kΩ
ISC Normally High Output
–30
4.0
6.0
8.0
10
12
VCC AND –VEE, (V)
MOTOROLA ANALOG IC DEVICE DATA
14
16
–15
–40
22
85
TA, AMBIENT TEMPERATURE (°C)
5
MC14C88B
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.
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
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
6
Dmax
– T
A
+ TJmax
R
q JA
where: RθJA = the package thermal resistance (typically,
where:
100°C/W for the DIP package, 125°C/W for the
where:
SOIC package);
where: TJmax = 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:
where:
where:
where:
where:
where:
VCC and VEE are the positive and negative
supply voltages;
VOH and VOL are measured or estimated from
Figure 3;
ICC and IEE are the quiescent supply currents
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.
MOTOROLA ANALOG IC DEVICE DATA
MC14C88B
OUTLINE DIMENSIONS
P SUFFIX
PLASTIC PACKAGE
CASE 646–06
ISSUE L
14
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.
8
B
1
7
A
F
DIM
A
B
C
D
F
G
H
J
K
L
M
N
L
C
J
N
H
G
D
SEATING
PLANE
K
M
D SUFFIX
PLASTIC PACKAGE
CASE 751A–03
(SO–14)
ISSUE F
–A–
14
1
P 7 PL
0.25 (0.010)
7
G
M
F
–T–
D 14 PL
0.25 (0.010)
M
K
M
T B
S
MOTOROLA ANALOG IC DEVICE DATA
M
R X 45 _
C
SEATING
PLANE
B
A
S
MILLIMETERS
MIN
MAX
18.16
19.56
6.10
6.60
3.69
4.69
0.38
0.53
1.02
1.78
2.54 BSC
1.32
2.41
0.20
0.38
2.92
3.43
7.62 BSC
0_
10_
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.
8
–B–
INCHES
MIN
MAX
0.715
0.770
0.240
0.260
0.145
0.185
0.015
0.021
0.040
0.070
0.100 BSC
0.052
0.095
0.008
0.015
0.115
0.135
0.300 BSC
0_
10_
0.015
0.039
J
DIM
A
B
C
D
F
G
J
K
M
P
R
MILLIMETERS
MIN
MAX
8.55
8.75
3.80
4.00
1.35
1.75
0.35
0.49
0.40
1.25
1.27 BSC
0.19
0.25
0.10
0.25
0_
7_
5.80
6.20
0.25
0.50
INCHES
MIN
MAX
0.337
0.344
0.150
0.157
0.054
0.068
0.014
0.019
0.016
0.049
0.050 BSC
0.008
0.009
0.004
0.009
0_
7_
0.228
0.244
0.010
0.019
7
MC14C88B
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
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. “Typical” 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
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
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and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
How to reach us:
USA / EUROPE / Locations Not Listed: Motorola Literature Distribution;
P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454
JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,
3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315
MFAX: [email protected] – TOUCHTONE 602–244–6609
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51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
8
◊
*MC14C88B/D*
MOTOROLA ANALOG IC DEVICE
DATA
MC14C88B/D