The 74LVC169 is a high-performance, low-power, low-voltage,
Si-gate CMOS device and superior to most advanced CMOS
compatible TTL families.
74L VC169
The 74LVC169 is a synchronous presettable binary counter which
features an internal lookahead carry and can be used for high-speed
counting. Synchronous operation is provided by having all flip-flops
clocked simultaneously on the positive-going edge of the clock (CP).
The outputs (Q
LOW level. A LOW level at the parallel enable input (PE) disables
the counting action and causes the data at the data inputs
(D
to D3) to be loaded into the counter on the positive-going edge
0
of the clock (provided that the set-up and hold time requirements for
PE are met). Preset takes place regardless of the levels at count
enable inputs (CEP and CET). A low level at the master reset input
(MR) sets all four outputs of the flip-flops (Q
after the next positive-going transition on the clock (CP) input
(provided that the set-up and hold time requirements for PE are
met).
This action occurs regardless of the levels at CP, PE
inputs This synchronous reset feature enables the designer to
modify the maximum count with only one external NAND gate.
The lookahead carry simplifies serial cascading of the counters.
Both count enable inputs (CEP and CET) must be HIGH to count.
The CET input is fed forward to enable the terminal count output
(TC). The TC output thus enabled will produce a HIGH output pulse
of a duration approximately equal to a HIGH level output of Q
pulse can be used to enable the next cascaded stage. The
maximum clock frequency for the cascaded counters is determined
by the CP to TC propagation delay and CEP to CP set-up time,
according to the following formula:
to Q3) of the counters may be preset to a HIGH or
0
to Q3) to LOW level
0
, CET and CEP
. This
0
_______________________________
f
=
max
tp
(CP to TC) + tSU (CEP to CP)
(max)
1
QUICK REFERENCE DATA
GND = 0V; T
SYMBOL
t
PHL/tPLH
f
MAX
C
I
C
PD
NOTES:
1. C
is used to determine the dynamic power dissipation (PD in µW)
PD
= CPD x V
P
D
f
= input frequency in MHz; CL = output load capacity in pF;
i
= output frequency in MHz; VCC = supply voltage in V;
f
o
Σ (C
L
2. The condition is V
= 25°C; TR = TF 2.5ns
amb
Propagation delay
CP to Q
CP to TC
CET to TC
maximum clock frequency200MHz
input capacitance5.0pF
power dissipation capacitance per gatenotes 1 and 242pF
2
x fi +Σ (CL x V
CC
2
x V
x f
CC
= sum of the outputs
o )
= GND to V
1
PARAMETERCONDITIONSTYPICALUNIT
CL = 50 pF
n
2
x f
CC
CC
where:
o )
VCC = 3.3V5.0
6.5
5.3
ORDERING INFORMATION
PACKAGESTEMPERATURE RANGE OUTSIDE NORTH AMERICANORTH AMERICADWG NUMBER
16-Pin Plastic SO–40°C to +85°C74LVC169 D74LVC169 DSOT109-1
16-Pin Plastic SSOP Type II–40°C to +85°C74LVC169 DB74LVC169 DBSOT338-1
16-Pin Plastic TSSOP Type I–40°C to +85°C74LVC169 PW74LVC169PW DHSOT403-1
DC supply voltage (for max. speed performance)2.73.6
DC supply voltage (for low-voltage applications)1.23.6
DC input voltage range05.5V
I
DC output voltage range0V
O
Operating free-air temperature range–40+85°C
Input rise and fall times
f
T
CC
V
V
amb
tr, t
D
0D1D2D3
PE
U/D
CP
CEP
CET
Q0Q1Q2Q
Synchronous multistage counting scheme
74LVC169
D
0D1D2D3
PE
U/D
TC
3
CP
CEP
CET
Q0Q1Q2Q
TC
3
MINMAX
VCC = 1.2 to 2.7V
VCC = 2.7 to 3.6V
0
0
PE
U/D
CP
CEP
CET
LIMITS
D
0D1D2D3
Q0Q1Q2Q
MOST SIGNIFICANT
4-BIT COUNTER
CC
20
10
TC
3
SF00790
V
ns/V
ABSOLUTE MAXIMUM RATINGS
1
In accordance with the Absolute Maximum Rating System (IEC 134)
Voltages are referenced to GND (ground = 0V)
SYMBOL
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
, I
GND
CC
T
stg
DC supply voltage–0.5 to +6.5V
DC input diode currentVI 0–50mA
DC input voltageNote 2–0.5 to +5.5V
DC output diode currentV
DC output voltageNote 2–0.5 to VCC +0.5V
DC output source or sink currentVO = 0 to V
DC VCC or GND current100mA
Storage temperature range–65 to +150°C
PARAMETERCONDITIONSRATINGUNIT
VCC or VO 050mA
O
CC
50mA
Power dissipation per package
– plastic mini-pack (SO)above +70°C derate linearly with 8 mW/K500
– plastic shrink mini-pack (SSOP and
TSSOP)
above +60°C derate linearly with 5.5 mW/K500
mW
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability .
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
Over recommended operating conditions voltages are referenced to GND (ground = 0V)
SYMBOLPARAMETERTEST CONDITIONSTemp = -40°C to +85°CUNIT
MINTYP1MAX
V
LOW level output voltage
OL
p
I
CC
∆I
Quiescent supply currentVCC = 3.6V; VI = VCC or GND; IO = 00.110µA
Additional quiescent supply current per
CC
input pin
NOTES:
1. All typical values are at V
p
p
p
= 3.3V and T
CC
amb
= 25°C.
VCC = 1.2VV
VCC = 2.7 to 3.6V2.0
VCC = 1.2VGND
VCC = 2.7 to 3.6V0.8
VCC = 2.7V; VI = VIH or VIL; IO = –12mAVCC0.5
VCC = 3.0V; VI = VIH or VIL; IO = –100µAVCC0.2V
VCC = 3.0V; VI = VIH or V
VCC = 3.0V; VI = VIH or V
IO = –12mAVCC0.6
IL;
IO = –24mAVCC1.0
IL;
VCC = 2.7V; VI = VIH or VIL; IO = 12mA0.40
VCC = 3.0V; VI = VIH or VIL; IO = 100µAGND0.20
VCC = 3.0V; VI = VIH or V
Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products,
including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright,
or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes
only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing
or modification.
Formative or in Design
Preproduction Product
Full Production
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips
Semiconductors reserves the right to make changes at any time without notice in order to improve design
and supply the best possible product.
This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes
at any time without notice, in order to improve design and supply the best possible product.
74LVC169
LIFE SUPPORT APPLICA TIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected
to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips
Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully
indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Philips Semiconductors and Philips Electronics North America Corporation
register eligible circuits under the Semiconductor Chip Protection Act.
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
print codeDate of release: 05-96
Document order number:9397-750-04498
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