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PDF HD74LV163A Data sheet ( Hoja de datos )
| Número de pieza | HD74LV163A | |
| Descripción | Synchronous 4-bit Binary Counter (Synchronous Clear) | |
| Fabricantes | Hitachi Semiconductor | |
| Logotipo |  |
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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)
1 page  
Logic Diagram
CLK
CLR
LOAD
Enable
P
T
A
B
Data
Inputs
C
D
HD74LV163A
Output
DQ
QA
CK
Q
Output
DQ
QB
CK
Q
Output
DQ
QC
CK
Q
Output
DQ
QD
CK
Q
Carry
Output
5
5 Page 
Operating Characteristics
• CL = 50 pF
Item
Power
dissipation
capacitance
Symbol
CPD
VCC (V)
3.3
5.0
Ta = 25°C
Min Typ
— 17.3
— 20.6
Max
—
—
HD74LV163A
Unit Test Conditions
pF f = 10 MHz
Noise Characteristics
• CL = 50 pF
Item
Quiet output,
maximum
dynamic VOL
Quiet output,
minimum
dynamic VOL
Quiet output,
minimum
dynamic VOH
High-level
dynamic
input voltage
Low-level
dynamic
input voltage
Symbol
VOL (P)
VOL (V)
VOH (V)
VIH (D)
VIL (D)
VCC (V)
3.3
3.3
3.3
3.3
3.3
Ta = 25°C
Min Typ
— 0.3
— –0.3
— 3.0
2.31 —
——
Max
0.8
–0.8
—
—
0.99
Unit Test Conditions
V
V
11
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet HD74LV163A.PDF ] | |
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