MOTOROLA CMOS LOGIC DATAMC14194B
284
The MC14194B is a 4–bit static shift register capable of operating in the
parallel l oad, serial shift left, serial s hift right, or hold mode. The
asynchronous Reset input, when at a low level, overrides all other inputs,
resets all stages, and forces all outputs low. When Reset
is at a logic 1 level,
the two mode control inputs, S0 and S1, control the operating mode as
shown in the truth table. Both serial and parallel operation are triggered on
the positive–going transition of the Clock input. The Parallel Data, Data Shift,
and mode control inputs must be stable for the specified setup and hold
times before and after the positive–going Clock transition.
• Synchronous Right/Left Serial Operation
• Synchronous Parallel Load
• Asynchronous Hold (Do Nothing) Mode
• Functional Pin for Pin Equivalent of LS194
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
Q
LOGIC DIAGRAM
RESET
CLOCK
DSR
S0
S1
1
11
2
9
10
5
643
D
P1
D
P0
D
P2
D
P3
7
DSL
Q0 Q1 Q2 Q3
15 14 13 12
D
R
D Q D Q D Q
C C C C
R R R
VDD = PIN 16
VSS = PIN 8
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
MOTOROLA CMOS LOGIC DATA
285
MC14194B
ELECTRICAL CHARACTERISTICS (Voltages Referenced to V
SS
)
“1” Level
Vin = 0 or V
DD
“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 = 0.5 or 4.5 Vdc)
(VO = 1.0 or 9.0 Vdc)
(VO = 1.5 or 13.5 Vdc)
– 4.2
– 0.88
– 2.25
– 8.8
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 = (0.95 µA/kHz) f + I
DD
IT = (1.90 µA/kHz) f + I
DD
IT = (2.90 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.
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.
PIN ASSIGNMENT
13
14
15
16
9
10
11
125
4
3
2
1
8
7
6
Q3
Q2
Q1
V
DD
S0
S1
C
D
P1
D
P0
DSR
R
V
SS
DSL
D
P3
D
P2
Q0
Output Voltage
Input Voltage
Output Drive Current
(VOH = 2.5 Vdc) Source
(VOH = 4.6 Vdc)
(VOH = 9.5 Vdc)
(VOH = 13.5 Vdc)
(VOL = 0.4 Vdc) Sink
(VOL = 0.5 Vdc)
(VOL = 1.5 Vdc)