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Hitachi Power Semiconductor Device Electronic Components Datasheet

HD74LV163A Datasheet

Synchronous 4-bit Binary Counter (Synchronous Clear)

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HD74LV163A pdf
HD74LV163A
Synchronous 4-bit Binary Counter (Synchronous Clear)
ADE-205-265B (Z)
3rd Edition
April 2000
Description
The HD74LV163A is 4-bit binary counters. All flip flops are clocked simultaneously on the low to high to
transition (positive edge) of the clock input waceform. These counters may be preset using the load input.
Presetting of all four flip flops is synchronous to the rising edge of clock. When load is held low counting
is disabled and the data on the A, B, C and D inputs is loaded into the counter on the rising edge clock. If
the load input is taken high before the positive edge of clock the count operation will be unaffected.
Low-voltage and high-speed operation is suitable for the battery-powered products (e.g., notebook
computers), and the low-power consumption extends the battery life.
Features
VCC = 2.0 V to 5.5 V operation
All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V)
All outputs VO (Max.) = 5.5 V (@VCC = 0 V)
Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
Typical VOH undershoot > 2.3 V (@VCC = 3.3 V, Ta = 25°C)
Output current ±6 mA (@VCC = 3.0 V to 3.6 V), ±12 mA (@VCC = 4.5 V to 5.5 V)


Hitachi Power Semiconductor Device Electronic Components Datasheet

HD74LV163A Datasheet

Synchronous 4-bit Binary Counter (Synchronous Clear)

No Preview Available !

HD74LV163A pdf
HD74LV163A
Function Table
Inputs
Outputs
CLR
LOAD
ENP
ENT
CLK
QA
QB
QC
QD
L XX XL L L L
HL X XABC D
H H X L No change
HHL
X No change
H H H H Count up
X X X X No change
Note:
H: High level
L: Low level
X: Immaterial
: Low to high transition
: High to low transition
A, B, C, D: Data input
Carry = ENT • QA • QB • QC • QD
Pin Arrangement
CLR 1
CK 2
A3
B4
C5
D6
ENP 7
GND 8
16 VCC
15
CARRY
OUTPUT
14 QA
13 QB
12 QC
11 QD
10 ENT
9 LOAD
(Top view)
2


Part Number HD74LV163A
Description Synchronous 4-bit Binary Counter (Synchronous Clear)
Maker Hitachi Semiconductor
Total Page 19 Pages
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