© Semiconductor Components Industries, LLC, 2014
July, 2014 − Rev. 9
1 Publication Order Number:
MC14517B/D
MC14517B
Dual 64-Bit Static Shift
Register
The MC14517B dual 64−bit static shift register consists of two
identical, independent, 64−bit registers. Each register has separate clock
and write enable inputs, as well as outputs at bits 16, 32, 48, and 64. Data
at the data input is entered by clocking, regardless of the state of the write
enable input. An output is disabled (open circuited) when the write enable
input is high. During this time, data appearing at the data input as well as
the 16−bit, 32−bit, and 48−bit taps may be entered into the device by
application of a clock pulse. This feature permits the register to be loaded
with 64 bits in 16 clock periods, and also permits bus logic to be used.
This device is useful in time delay circuits, temporary memory storage
circuits, and other serial shift register applications.
Features
• Diode Protection on All Inputs
• Fully Static Operation
• Output Transitions Occur on the Rising Edge of the Clock Pulse
• Exceedingly Slow Input Transition Rates May Be Applied to the
Clock Input
• 3−State Output at 64th−Bit Allows Use in Bus Logic Applications
• Shift Registers of any Length may be Fully Loaded with 16 Clock
Pulses
• Supply Voltage Range = 3.0 Vdc to 18 Vdc
• Capable of Driving Two Low−Power TTL Loads or One Low−Power
Schottky TTL Load Over the Rated Temperature Range
• NLV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• This Device is Pb−Free and is RoHS Compliant
MAXIMUM RATINGS (Voltages Referenced to V
SS
)
Parameter Symbol Value Unit
DC Supply Voltage Range V
DD
−0.5 to +18.0 V
Input or Output Voltage Range
(DC or Transient)
V
in
, V
out
−0.5 to V
DD
+ 0.5
V
Input or Output Current (DC or Transient)
per Pin
I
in
, I
out
±10 mA
Power Dissipation per Package (Note 1) P
D
500 mW
Operating Temperature Range T
A
−55 to +125 °C
Storage Temperature Range T
stg
−65 to +150 °C
Lead Temperature (8−Second Soldering) T
L
260 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the
device. If any of these limits are exceeded, device functionality should not be
assumed, damage may occur and reliability may be affected.
1. Temperature Derating: Plastic “D/DW” Package: –7.0 mW/_C From 65_C to
125_C
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, V
in
and V
out
should be constrained
to the range V
SS
≤ (V
in
or V
out
) ≤ V
DD
.
Unused inputs must always be tied to an appropriate logic voltage level
(e.g., either V
SS
or V
DD
). Unused outputs must be left open.
Device Package Shipping
†
ORDERING INFORMATION
http://onsemi.com
MC14517BDWR2G SOIC−16 WB
(Pb−Free)
1000 /
Tape & Reel
MC14517BDWG SOIC−16 WB
(Pb−Free)
47 Units/Rail
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G = Pb−Free Package
MARKING DIAGRAM
SOIC−16 WB
DW SUFFIX
CASE 751G
16
1
14517B
AWLYYWWG
1
PIN ASSIGNMENT
13
14
15
16
9
10
11
125
4
3
2
1
8
7
6
C
B
WE
B
Q48
B
Q16
B
V
DD
D
B
Q32
B
Q64
B
C
A
WE
A
Q48
A
Q16
A
V
SS
Q32
A
Q64
A
D
A
NLV14517BDWR2G SOIC−16 WB
(Pb−Free)
1000 /
Tape & Reel
