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PDF HD74HC592 Data sheet ( Hoja de datos )
| Número de pieza | HD74HC592 | |
| Descripción | 8-bit Register/Binary Counter | |
| Fabricantes | Hitachi Semiconductor | |
| Logotipo |  |
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HD74HC592
8-bit Register/Binary Counter
Description
The HD74HC592 consists of a parallel input, 8-bit storage register feeding an 8-bit binary counter. Both
the register and the counter have individual positive edge-triggered clocks. In addition, the counter has
direct load and clear functions. Expansion is easily accomplished by connecting RCO of the first stage to
the count enable of the second stage, etc.
Features
• High Speed Operation: tpd (CCK to RCO) = 24 ns typ (CL = 50 pF)
• 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
Inputs
RCK
X
X
X
X
X
CLoad
L
H
H
H
H
H
H
CCLR
H
L
H
H
H
H
H
CCKEN
X
X
X
X
L
L
H
CCK
X
X
X
X
X
Function
Regiater data loaded into counter
Counter clear
Input data A to H stored into register
No change in register
Count up
No count
No cont
RCO = QA’•QB’•QC’•QD’•QE’•QF’•QG’•QH’• (CCKEN) (QA’ to QH’: Output of Internal Counter)
1 page  
HD74HC592
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25°C
Ta = –40 to
+85°C
Item
Maximum clock
frequency
Symbol
f max
VCC (V)
2.0
4.5
Min Typ Max Min
——5 —
— — 25 —
Max Unit Test Conditions
4 MHz
20
6.0 — — 29 — 24
Propagation delay tPLH
time
t PHL
2.0 — — 200 — 250 ns CCK to RCO
4.5 — 24 40 — 50
6.0 — — 34 — 43
tPLH 2.0 — — 200 — 250 ns C Load to RCO
tPHL 4.5 — 27 40 — 50
6.0 — — 34 — 43
tPLH 2.0 — — 200 — 250 ns CCLR to RCO
4.5 — 26 40 — 50
6.0 — — 34 — 43
tPLH 2.0 — — 300 — 375 ns RCK to RCO
tPHL 4.5 — 29 60 — 75
6.0 — — 51 — 64
Pulse width tw 2.0 80 — — 100 — ns
4.5 16 8 – 20 —
6.0 14 — — 17 —
Removal time
t rem
2.0 100 — — 125 — ns CCLR to CCK
4.5 20 12 — 25 —
6.0 17 — — 21 —
Setup time
tsu 2.0 100 — — 125 — ns CCKEN to CCK
4.5 20 0 — 25 —
6.0 17 — — 21 —
2.0 200 — — 250 — ns CCK to RCK
4.5 40 14 — 50 —
6.0 34 — — 43 —
Output rise/fall
time
t TLH
t THL
2.0 — — 75 — 95 ns
4.5 — 5 15 — 19
6.0 — — 13 — 16
Input capacitance Cin — — 5 10 — 10 pF
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet HD74HC592.PDF ] | |
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