SEMICONDUCTOR TECHNICAL DATA
1REV 1
Motorola, Inc. 1996
11/96
!
"
The MC74LCX74 is a high performance, dual D–type flip–flop with
asynchronous clear and set inputs and complementary (O, O) outputs. It
operates from a 2.7 to 3.6V supply. High impedance TTL compatible
inputs significantly reduce current loading to input drivers while TTL
compatible outputs offer improved switching noise performance. A VI
specification of 5.5V allows MC74LCX74 inputs to be safely driven from
5V devices.
The MC74LCX74 consists of 2 edge–triggered flip–flops with
individual D–type inputs. The flip–flop will store the state of individual D
inputs, that meet the setup and hold time requirements, on the
LOW–to–HIGH Clock (CP) transition.
•Designed for 2.7 to 3.6V VCC Operation
•5V Tolerant Inputs — Interface Capability With 5V TTL Logic
•LVTTL Compatible
•LVCMOS Compatible
•24mA Balanced Output Sink and Source Capability
•Near Zero Static Supply Current in All Three Logic States (10µA)
Substantially Reduces System Power Requirements
•Latchup Performance Exceeds 500mA
•ESD Performance: Human Body Model >2000V; Machine Model >200V
Pinout: 14–Lead (Top View)
1314 12 11 10 9 8
21 34567
V
CC CD2 D2 CP2 SD2O2 O2
CD1 D1 CP1 SD1O1 O1 GND
DT SUFFIX
PLASTIC TSSOP
CASE 948G–01
14
1
SD SUFFIX
PLASTIC SSOP
CASE 940A–03
14
1
M SUFFIX
PLASTIC SOIC EIAJ
CASE 965–01
14
1
D SUFFIX
PLASTIC SOIC
CASE 751A–03
14
1
PIN NAMES
Function
Clock Pulse Inputs
Data Inputs
Direct Clear Inputs
Direct Set Inputs
Outputs
Pins
CP1, CP2
D1, D2
CD1, CD2
SD1, SD2
On, On
LOW–VOLTAGE CMOS
DUAL D–TYPE FLIP–FLOP
MC74LCX74
MOTOROLA LCX DATA
BR1339 — REV 3
2
LOGIC DIAGRAM
O1
SD1
Q
4
5
D1 D
2
CP1 CP
3
CD1 1
O1
Q6
SD
CD
O2
SD2
Q
10
9
D2 D
12
CP2 CP
11
CD2 13
O2
Q8
SD
CD
INPUTS OUTPUTS
SDn CDn CPn Dn On On OPERATING MODE
L
HH
LX
XX
XH
LL
HAsynchronous Set
Asynchronous Clear
L L X X H H Undetermined
H
HH
H↑
↑h
lH
LL
HLoad and Read Register
H H ↑X NC NC Hold
H = High V oltage Level; h = High V oltage Level One Setup T ime Prior to the Low–to–High Clock Transition; L = Low Voltage Level; l = Low
V oltage Level One Setup T ime Prior to the Low–to–High Clock T ransition; NC = No Change; X = High or Low V oltage Level or T ransitions
are Acceptable; ↑= Low–to–High T ransition; ↑= Not a Low–to–High Transition; For ICC Reasons DO NOT FLOAT Inputs
MC74LCX74
LCX DATA
BR1339 — REV 3 3 MOTOROLA
ABSOLUTE MAXIMUM RATINGS*
Symbol Parameter Value Condition Unit
VCC DC Supply Voltage –0.5 to +7.0 V
VIDC Input Voltage –0.5 ≤ VI ≤ +7.0 V
VODC Output Voltage –0.5 ≤ VO ≤ VCC + 0.5 Note 1. V
IIK DC Input Diode Current –50 VI < GND mA
IOK DC Output Diode Current –50 VO < GND mA
+50 VO > VCC mA
IODC Output Source/Sink Current ±50 mA
ICC DC Supply Current Per Supply Pin ±100 mA
IGND DC Ground Current Per Ground Pin ±100 mA
TSTG Storage Temperature Range –65 to +150 °C
* Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or
conditions beyond those indicated may adversely affect device reliability. Functional operation under absolute–maximum–rated conditions is
not implied.
1. Output in HIGH or LOW State. IO absolute maximum rating must be observed.
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Typ Max Unit
VCC Supply Voltage Operating
Data Retention Only 2.0
1.5 3.3
3.3 3.6
3.6 V
VIInput Voltage 0 5.5 V
VOOutput Voltage (HIGH or LOW State) 0 VCC V
IOH HIGH Level Output Current, VCC = 3.0V – 3.6V –24 mA
IOL LOW Level Output Current, VCC = 3.0V – 3.6V 24 mA
IOH HIGH Level Output Current, VCC = 2.7V – 3.0V –12 mA
IOL LOW Level Output Current, VCC = 2.7V – 3.0V 12 mA
TAOperating Free–Air Temperature –40 +85 °C
∆t/∆VInput Transition Rise or Fall Rate, VIN from 0.8V to 2.0V,
VCC = 3.0V 0 10 ns/V
DC ELECTRICAL CHARACTERISTICS
TA = –40°C to +85°C
Symbol Characteristic Condition Min Max Unit
VIH HIGH Level Input Voltage (Note 2.) 2.7V ≤ VCC ≤ 3.6V 2.0 V
VIL LOW Level Input Voltage (Note 2.) 2.7V ≤ VCC ≤ 3.6V 0.8 V
VOH HIGH Level Output Voltage 2.7V ≤ VCC ≤ 3.6V; IOH = –100µA VCC – 0.2 V
VCC = 2.7V ; IOH = –12mA 2.2
VCC = 3.0V ; IOH = –18mA 2.4
VCC = 3.0V ; IOH = –24mA 2.2
VOL LOW Level Output Voltage 2.7V ≤ VCC ≤ 3.6V; IOL = 100µA 0.2 V
VCC = 2.7V ; IOL= 12mA 0.4
VCC = 3.0V ; IOL = 16mA 0.4
VCC = 3.0V ; IOL = 24mA 0.55
2. These values of VI are used to test DC electrical characteristics only.
MC74LCX74
MOTOROLA LCX DATA
BR1339 — REV 3
4
DC ELECTRICAL CHARACTERISTICS (continued)
TA = –40°C to +85°C
Symbol Characteristic Condition Min Max Unit
IIInput Leakage Current 2.7V ≤ VCC ≤ 3.6V ; 0V ≤ VI ≤ 5.5V ±5.0 µA
ICC Quiescent Supply Current 2.7 ≤ VCC ≤ 3.6V ; VI = GND or VCC 10 µA
2.7 ≤ VCC ≤ 3.6V; 3.6 ≤ VI ≤ 5.5V ±10 µA
∆ICC Increase in ICC per Input 2.7 ≤ VCC ≤ 3.6V ; VIH = VCC – 0.6V 500 µA
AC CHARACTERISTICS (tR = tF = 2.5ns; CL = 50pF; RL = 500Ω)
Limits
TA = –40°C to +85°C
VCC = 3.0V to 3.6V VCC = 2.7V
Symbol Parameter Waveform Min Max Min Max Unit
fmax Clock Pulse Frequency 1 150 MHz
tPLH
tPHL Propagation Delay
CPn to On or On1 1.5
1.5 7.0
7.0 8.0
8.0 ns
tPLH
tPHL Propagation Delay
SDn or CDn to On or On 2 1.5
1.5 7.0
7.0 8.0
8.0 ns
tsSetup TIme, HIGH or LOW Dn to CPn 1 2.5 2.5 ns
thHold TIme, HIGH or LOW Dn to CPn 1 1.5 1.5 ns
twCPn Pulse Width, HIGH or LOW 1 3.3 3.3 ns
SDn or CDn Pulse Width, LOW 3 3.3 3.6 ns
trec Recovery TIme SDn or CDn to CPn 1 2.5 3.0 ns
tOSHL
tOSLH Output–to–Output Skew
(Note 3.) 1.0
1.0 ns
3. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.
The specification applies to any outputs switching in the same direction, either HIGH–to–LOW (tOSHL) or LOW–to–HIGH (tOSLH); parameter
guaranteed by design.
DYNAMIC SWITCHING CHARACTERISTICS
TA = +25°C
Symbol Characteristic Condition Min Typ Max Unit
VOLP Dynamic LOW Peak Voltage (Note 4.) VCC = 3.3V, CL = 50pF, VIH = 3.3V, VIL = 0V 0.8 V
VOLV Dynamic LOW Valley V oltage (Note 4.) VCC = 3.3V, CL = 50pF, VIH = 3.3V, VIL = 0V 0.8 V
4. Number of outputs defined as “n”. Measured with “n–1” outputs switching from HIGH–to–LOW or LOW–to–HIGH. The remaining output is
measured in the LOW state.
CAPACITIVE CHARACTERISTICS
Symbol Parameter Condition Typical Unit
CIN Input Capacitance VCC = 3.3V, VI = 0V or VCC 7pF
COUT Output Capacitance VCC = 3.3V, VI = 0V or VCC 8pF
CPD Power Dissipation Capacitance 10MHz, VCC = 3.3V, VI = 0V or VCC 25 pF
MC74LCX74
LCX DATA
BR1339 — REV 3 5 MOTOROLA
trec
WAVEFORM 3 – RECOVERY TIME
tR = tF = 2.5ns from 10% to 90%; f = 1MHz; tw = 500ns
2.7V
0V
2.7V
0V
1.5V
1.5V
Figure 1. AC Waveforms
WAVEFORM 2 – PROPAGATION DELAYS
tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns
SDn, CDn
CPn
2.7V
0V
SDn
CDn1.5V
On
2.7V
0V
VOH
1.5V
On
VOL
1.5V
1.5V
1.5V
tPLH tPHL
tPHL
tPLH
WAVEFORM 1 – PROPAGATION DELAYS, SETUP AND HOLD TIMES
tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns
2.7V
0V
Dn
CPn
1.5V
On,
On
2.7V
0V
VOH
VOL
tPLH, tPHL
th
ts
1.5V
1.5V
fmax
tw
tw
MC74LCX74
MOTOROLA LCX DATA
BR1339 — REV 3
6
WAVEFORM 4 – PULSE WIDTH
tR = tF = 2.5ns (or fast as required) from 10% to 90%;
Output requirements: VOL
≤
0.8V, VOH
≥
2.0V
2.7V
0V
2.7V
0V
1.5V
1.5V
Figure 1. AC Waveforms (continued)
tw
1.5V
1.5V tw
CPn
SDn, CDn, CPn
PULSE
GENERATOR
RT
DUT
VCC
RL
CL
CL = 50pF or equivalent (Includes jig and probe capacitance)
RL = R1 = 500Ω or equivalent
RT = ZOUT of pulse generator (typically 50Ω)
Figure 2. Test Circuit
MC74LCX74
LCX DATA
BR1339 — REV 3 7 MOTOROLA
OUTLINE DIMENSIONS
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751A–03
ISSUE F
MIN MINMAX MAX
MILLIMETERS INCHES
DIM
A
B
C
D
F
G
J
K
M
P
R
8.55
3.80
1.35
0.35
0.40
0.19
0.10
0
°
5.80
0.25
8.75
4.00
1.75
0.49
1.25
0.25
0.25
7
°
6.20
0.50
0.337
0.150
0.054
0.014
0.016
0.008
0.004
0
°
0.228
0.010
0.344
0.157
0.068
0.019
0.049
0.009
0.009
7
°
0.244
0.019
1.27 BSC 0.050 BSC
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
–P 7 PL
GC
K
SEATING
PLANE
D 14 PL MJ
R X 45°
17
814
0.25 (0.010) T B A
MS S
B0.25 (0.010) M M
F
M SUFFIX
PLASTIC SOIC EIAJ PACKAGE
CASE 965–01
ISSUE O
ZD
HE
E
1
14 8
7
bA1
A
e
L
DIM MIN MAX MIN MAX
INCHES
--- 2.05 --- 0.081
MILLIMETERS
0.05 0.20 0.002 0.008
0.35 0.50 0.014 0.020
0.18 0.27 0.007 0.011
9.90 10.50 0.390 0.413
5.10 5.45 0.201 0.215
1.27 BSC 0.050 BSC
7.40 8.20 0.291 0.323
0.50 0.85 0.020 0.033
1.10 1.50 0.043 0.059
0
0.70 0.90 0.028 0.035
--- 1.42 --- 0.056
A1
A
b
c
D
E
e
L
M
Z
HE
Q1
LE
_
10
_
0
_
10
_
LEQ1
c
M
_
VIEW P
DETAIL P
NOTES:
1 DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2 CONTROLLING DIMENSION: MILLIMETER.
3 DIMENSIONS D AND E DO NOT INCLUDE MOLD
FLASH OR PROTRUSIONS AND ARE MEASURED
AT THE PARTING LINE. MOLD FLASH OR
PROTRUSIONS SHALL NOT EXCEED 0.15 (0.006)
PER SIDE.
4 TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
5 THE LEAD WIDTH DIMENSION (b) DOES NOT
INCLUDE DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.08 (0.003)
TOTAL IN EXCESS OF THE LEAD WIDTH
DIMENSION AT MAXIMUM MATERIAL CONDITION.
DAMBAR CANNOT BE LOCATED ON THE LOWER
RADIUS OR THE FOOT. MINIMUM SPACE
BETWEEN PROTRUSIONS AND ADJACENT LEAD
TO BE 0.46 ( 0.018).
0.13 (0.005) M0.10 (0.004)
MC74LCX74
MOTOROLA LCX DATA
BR1339 — REV 3
8
OUTLINE DIMENSIONS
DIM
AMIN MAX MIN MAX
INCHES
6.07 6.33 0.238 0.249
MILLIMETERS
B5.20 5.38 0.205 0.212
C1.73 1.99 0.068 0.078
D0.05 0.21 0.002 0.008
F0.63 0.95 0.024 0.037
G0.65 BSC 0.026 BSC
H1.08 1.22 0.042 0.048
J0.09 0.20 0.003 0.008
J1 0.09 0.16 0.003 0.006
K0.25 0.38 0.010 0.015
K1 0.25 0.33 0.010 0.013
____
NOTES:
6 DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
7 CONTROLLING DIMENSION: MILLIMETER.
8 DIMENSION A DOES NOT INCLUDE MOLD FLASH,
PROTRUSIONS OR GATE BURRS. MOLD FLASH
OR GATE BURRS SHALL NOT EXCEED 0.15
(0.006) PER SIDE.
9 DIMENSION B DOES NOT INCLUDE INTERLEAD
FLASH OR PROTRUSION. INTERLEAD FLASH OR
PROTRUSION SHALL NOT EXCEED 0.15 (0.006)
PER SIDE.
10 DIMENSION K DOES NOT INCLUDE DAMBAR
PROTRUSION/INTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN
EXCESS OF K DIMENSION AT MAXIMUM
MATERIAL CONDITION. DAMBAR INTRUSION
SHALL NOT REDUCE DIMENSION K BY MORE
THAN 0.07 (0.002) AT LEAST MATERIAL
CONDITION.
11 TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
12 DIMENSION A AND B ARE TO BE DETERMINED
AT DATUM PLANE –W–.
H
A
B
14 8
71
F
M
K14X REF
S
U
M
0.12 (0.005) V S
T
L
L/2
PIN 1
IDENT
S
U
M
0.20 (0.008) T
–V– –U–
D
C
0.076 (0.003)
G
–T–
SEATING
PLANE
DETAIL E
DETAIL E
–W–
N
N
0.25 (0.010)
ÇÇÇÇ
ÇÇÇÇ
ÉÉÉÉ
ÉÉÉÉ
K
JJ1
K1
SECTION N–N
L7.65 7.90 0.301 0.311
M0 8 0 8
DT SUFFIX
PLASTIC TSSOP PACKAGE
CASE 948G–01
ISSUE O
DIM MIN MAX MIN MAX
INCHESMILLIMETERS
A4.90 5.10 0.193 0.200
B4.30 4.50 0.169 0.177
C––– 1.20 ––– 0.047
D0.05 0.15 0.002 0.006
F0.50 0.75 0.020 0.030
G0.65 BSC 0.026 BSC
H0.50 0.60 0.020 0.024
J0.09 0.20 0.004 0.008
J1 0.09 0.16 0.004 0.006
K0.19 0.30 0.007 0.012
K1 0.19 0.25 0.007 0.010
L6.40 BSC 0.252 BSC
M0 8 0 8
NOTES:
1 DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2 CONTROLLING DIMENSION: MILLIMETER.
3 DIMENSION A DOES NOT INCLUDE MOLD FLASH,
PROTRUSIONS OR GATE BURRS. MOLD FLASH
OR GATE BURRS SHALL NOT EXCEED 0.15
(0.006) PER SIDE.
4 DIMENSION B DOES NOT INCLUDE INTERLEAD
FLASH OR PROTRUSION. INTERLEAD FLASH OR
PROTRUSION SHALL NOT EXCEED
0.25 (0.010) PER SIDE.
5 DIMENSION K DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN
EXCESS OF THE K DIMENSION AT MAXIMUM
MATERIAL CONDITION.
6 TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
7 DIMENSION A AND B ARE TO BE DETERMINED
AT DATUM PLANE –W–.
____
S
U0.15 (0.006) T
2X L/2
S
U
M
0.10 (0.004) V S
T
L–U–
SEATING
PLANE
0.10 (0.004)
–T–
ÇÇÇ
ÇÇÇ
SECTION N–N
DETAIL E
JJ1
K
K1
ÉÉÉ
ÉÉÉ
DETAIL E
F
M
–W–
0.25 (0.010)
8
14
7
1
PIN 1
IDENT.
H
G
A
D
C
B
S
U0.15 (0.006) T
–V–
14X REFK
N
N
SD SUFFIX
PLASTIC SSOP PACKAGE
CASE 940A–03
ISSUE B
MC74LCX74
LCX DATA
BR1339 — REV 3 9 MOTOROLA
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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. “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”
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MC74LCX74/D
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