|
|
Número de pieza | HD74HC4518 | |
Descripción | Dual BCD Use Converters/Dual Binary Up Converters | |
Fabricantes | Hitachi Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de HD74HC4518 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
No Preview Available ! HD74HC4518/HD74HC4520
Dual BCD Use Converters/Dual Binary Up Converters
Description
The HD74HC4518 dual BCD counter and the HD74HC4520 dual binary counter consist of two identical,
independent, internally synchronous 4-stage counters. The counter stages are type D flip-flops, with
interchangeable Clock and Enable lines for incrementing on either the positive-going or negative-going
transition as required when cascading multiple stages. Each counter can be cleared by applying a high
level on the Reset line. In addition, the HD74HC4518 will count out of all undefined states within two
clock periods. These complementary MOS up counters find primary use in multi-stage synchronous or
ripple counting applications requiring low power dissipation and/or high noise immunity.
Features
• High Speed Operation
• High Output Current: Fanout of 10 LSTTL Loads
• Wide Operating Voltage: VCC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
Function Table
Clock
L
X
H
X
Enable
H
X
L
X
Reset
L
L
L
L
L
L
H
Operation
Increment counter
Increment counter
No change
No change
No change
No change
Q0 to Q3 = L
1 page HD74HC4518/HD74HC4520
DC Characteristics
Item
Input voltage
Output voltage
Input current
Quiescent supply
current
Ta = 25°C
Ta = –40 to
+85°C
Symbol
VIH
VCC (V) Min Typ Max Min
2.0 1.5 — — 1.5
4.5 3.15 — — 3.15
Max
—
—
Unit
V
6.0 4.2 — — 4.2 —
VIL 2.0 — — 0.5 — 0.5 V
4.5 — — 1.35 — 1.35
6.0 — — 1.8 — 1.8
VOH 2.0 1.9 2.0 — 1.9 — V
4.5 4.4 4.5 — 4.4 —
6.0 5.9 6.0 — 5.9 —
4.5 4.18 — — 4.13 —
6.0 5.68 — — 5.63 —
VOL 2.0 — 0.0 0.1 — 0.1 V
4.5 — 0.0 0.1 — 0.1
6.0 — 0.0 0.1 — 0.1
4.5 — — 0.26 — 0.33
6.0 — — 0.26 — 0.33
Iin 6.0 — — ±0.1 — ±1.0 µA
ICC 6.0 — — 4.0 — 40 µA
Test Conditions
Vin = VIH or VIL IOH = –20 µA
IOH = –4 mA
IOH = –5.2 mA
Vin = VIH or VIL IOL = 20 µA
IOL = 4 mA
IOL = 5.2 mA
Vin = VCC or GND
Vin = VCC or GND, Iout = 0 µA
5
5 Page |
Páginas | Total 10 Páginas | |
PDF Descargar | [ Datasheet HD74HC4518.PDF ] |
Número de pieza | Descripción | Fabricantes |
HD74HC4511 | BCD-to-Seven Segment Latch/Decoder/Driver | Hitachi Semiconductor |
HD74HC4514 | 4-bit Latch/4-to-16-line Decoder | Hitachi Semiconductor |
HD74HC4515 | 4-bit Latch/4-to-16-line Decoder | Hitachi Semiconductor |
HD74HC4518 | Dual BCD Use Converters/Dual Binary Up Converters | Hitachi Semiconductor |
Número de pieza | Descripción | Fabricantes |
SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |