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PDF HD74HCT533 Data sheet ( Hoja de datos )
| Número de pieza | HD74HCT533 | |
| Descripción | Octal D-type Transparent Latches(with inverted 3-state outputs) | |
| Fabricantes | Hitachi Semiconductor | |
| Logotipo |  |
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HD74HCT373/HD74HCT533
Octal D-type Transparent Latches (with 3-state outputs)/
Octal D-type Transparent Latches (with inverted 3-state outputs)
Description
When the latch enable input is high, the Q outputs of HD74HCT373 will follow the D inputs and the Q
outputs of HD74HCT533 will follow the inversion of the D inputs. When the latch enable goes low, data at
the D inputs will be retained at the outputs until latch enable returns high again. When a high logic level is
applied to the output control input, all outputs go to a high impedance state, regardless of what signals
present at the other inputs and the state of the storage elements.
Features
• LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility
• High Speed Operation: tpd (Data to Q) = 14 ns typ (CL = 50 pF)
• High Output Current: Fanout of 15 LSTTL Loads
• Wide Operating Voltage: VCC = 4.5 to 5.5 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
Function Table
Output Control
Enable
G
D
LH
H
LH
L
LL
X
HX
X
X : Irrelevant
Z : Off (high-impedance) state of a 3-state output.
HD74HCT373
Q
H
L
No change
Z
HD74HCT533
Q
L
H
No change
Z
1 page  
HD74HCT373/HD74HCT533
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Item
Symbol
Propagation delay tPLH
time
t PHL
t PLH
t PHL
Output enable
t ZL
time
t ZH
Output disable
t LZ
time
t HZ
Setup time
t su
Hold time
th
Pulse width
tw
Output rise/fall
time
t TLH
t THL
Input capacitance Cin
Ta = 25°C
Ta = –40 to
+85°C
Min Typ Max Min Max
— 13 30 — 38
— 16 30 — 38
— 14 25 — 31
— 12 25 — 31
— 16 30 — 38
— 15 30 — 38
— 14 30 — 38
— 16 30 — 38
20 — — 25 —
10 — — 13 —
16 — — 20 —
— 4 12 — 15
— 5 10 — 10
Unit
ns
ns
ns
ns
ns
ns
ns
ns
pF
Test Conditions
VCC (V)
4.5 Latch control to Q
4.5
4.5 Data to Q
4.5
4.5
4.5
4.5
4.5
4.5 Data to latch control
4.5 Latch control to data
4.5 Latch control, output control
4.5
—
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet HD74HCT533.PDF ] | |
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