MOTOROLA CMOS LOGIC DATA
107
MC14027B
"
The MC14027B dual J–K flip–flop has independent J, K, Clock (C), Set (S)
and Reset ( R) inputs for each f lip–flop. These d evices may be used in
control, register, or toggle functions.
• Diode Protection on All Inputs
• Supply Voltage Range = 3.0 Vdc to 18 Vdc
• Logic Swing Independent of Fanout
• Logic Edge–Clocked Flip–Flop Design —
Logic state is retained indefinitely with clock level either high or low;
information is transferred to the output only on the positive–going edge
of the clock pulse
• Capable of Driving Two Low–power TTL Loads or One Low–power
Schottky TTL Load Over the Rated Temperature Range
• Pin–for–Pin Replacement for CD4027B
MAXIMUM RATINGS* (Voltages Referenced to V
SS
)
Input or Output Voltage (DC or Transient)
Input or Output Current (DC or Transient),
per Pin
Power Dissipation, per Package†
Lead Temperature (8–Second Soldering)
_
C
*Maximum Ratings are those values beyond which damage to the device may occur.
†Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_C
Ceramic “L” Packages: – 12 mW/_C From 100_C To 125_C
TRUTH TABLE
Inputs Outputs*
C
†
J K S R Q
n
‡
Q
n+1
Q
n+1
1 X 0 0 0 1 0
X 0 0 0 1 1 0
0 X 0 0 0 0 1
X 1 0 0 1 0 1
1 1 0 0 Qo Qo Qo
X X 0 0 X Q
n
Q
n
X X X 1 0 X 1 0
X X X 0 1 X 0 1
X X X 1 1 X 1 1
X = Don’t Care
‡
= Present State
†
= Level Change * = Next State
This device contains protection circuitry to guard against damage
due to high static voltages or electric fields. However, precautions must
be taken to avoid applications of any voltage higher than maximum rated
voltages to this high-impedance circuit. For proper operation, Vin and
V
out
should be constrained to the range VSS ≤ (Vin or V
out
) ≤ VDD.
Unused inputs must always be tied to an appropriate logic voltage
level (e.g., either VSS or VDD). Unused outputs must be left open.
No
Change
SEMICONDUCTOR TECHNICAL DATA
Motorola, Inc. 1995
REV 3
1/94
!
!
L SUFFIX
CERAMIC
CASE 620
ORDERING INFORMATION
MC14XXXBCP Plastic
MC14XXXBCL Ceramic
MC14XXXBD SOIC
TA = – 55° to 125°C for all packages.
P SUFFIX
PLASTIC
CASE 648
D SUFFIX
SOIC
CASE 751B
BLOCK DIAGRAM
12
11
13
10
9
4
5
3
6
7
14
15
2
1
S
S
R
R
K
C
J
K
C
J Q
Q
Q
Q
VDD = PIN 16
VSS = PIN 8
MOTOROLA CMOS LOGIC DATAMC14027B
108
ELECTRICAL CHARACTERISTICS (Voltages Referenced to V
SS
)
“0” Level
(VO = 4.5 or 0.5 Vdc)
(VO = 9.0 or 1.0 Vdc)
(VO = 13.5 or 1.5 Vdc)
“1” Level
(VO = 1.0 or 9.0 Vdc)
(VO = 1.5 or 13.5 Vdc)
Output Drive Current
(VOH = 2.5 Vdc) Source
(VOH = 4.6 Vdc)
(VOH = 9.5 Vdc)
(VOH = 13.5 Vdc)
– 4.2
– 0.88
– 2.25
– 8.8
(VOL = 0.4 Vdc) Sink
(VOL = 0.5 Vdc)
(VOL = 1.5 Vdc)
Input Capacitance
(Vin = 0)
Quiescent Current
(Per Package)
Total Supply Current**†
(Dynamic plus Quiescent,
Per Package)
(CL = 50 pF on all outputs, all
buffers switching)
IT = (0.8 µA/kHz) f + I
DD
IT = (1.6 µA/kHz) f + I
DD
IT = (2.4 µA/kHz) f + I
DD
µAdc
#Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
**The formulas given are for the typical characteristics only at 25_C.
†To calculate total supply current at loads other than 50 pF:
IT(CL) = IT(50 pF) + (CL – 50) Vfk
where: IT is in µA (per package), CL in pF, V = (VDD – VSS) in volts, f in kHz is input frequency, and k = 0.002.
13
14
15
16
9
10
11
125
4
3
2
1
8
7
6
R
B
C
B
Q
B
Q
B
V
DD
S
B
J
B
K
B
R
A
C
A
Q
A
Q
A
V
SS
S
A
J
A
K
A
PIN ASSIGNMENT