74AHCT123APW データシートの表示（PDF） - NXP Semiconductors.
部品番号
コンポーネント説明
メーカー
74AHCT123APW Datasheet PDF : 21 Pages
| |||
NXP Semiconductors
74AHC123A; 74AHCT123A
Dual retriggerable monostable multivibrator with reset
Table 7. Dynamic characteristics …continued
GND = 0 V; For test circuit see Figure 12.
Symbol Parameter Conditions
25 °C
−40 °C to +85 °C −40 °C to +125 °C Unit
Min Typ[1] Max Min
Max
Min
Max
trtrig
retrigger
nA to nB; CEXT = 100 pF;
time
REXT = 1 kΩ; CL = 50 pF;
see Figure 8 and Figure 10
VCC = 4.5 V to 5.5 V
- 60 -
-
-
-
-
ns
nA to nB; CEXT = 0.01 µF;
REXT = 1 kΩ; CL = 50 pF;
see Figure 8 and Figure 10
VCC = 4.5 V to 5.5 V
- 1.5 -
-
-
-
-
µs
CPD
power
CL = 50 pF; fi = 1 MHz;
[4] -
58 -
-
-
-
-
pF
dissipation VI = GND to VCC
capacitance
External components
REXT
CEXT
external
resistance
external
capacitance
VCC = 2.0 V
VCC > 3.0 V
VCC = 2.0 V
VCC > 3.0 V
5
-
-
-
-
-
-
kΩ
1
-
-
-
-
-
-
kΩ
[5] -
-
-
-
-
-
-
pF
[5] -
-
-
-
-
-
-
pF
[1] Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC = 5.0 V).
[2] tpd is the same as tPLH and tPHL; CEXT = 0 pF; REXT = 5 kΩ.
[3] For CEXT ≥ 10 nF the typical value of the pulse width tW (µs) = CEXT (nF) × REXT (kΩ).
[4] CPD is used to determine the dynamic power dissipation PD (µW).
PD = CPD × VCC2 × fi + ∑ (CL × VCC2 × fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in V.
[5] CEXT has no limits.
74AHC_AHCT123A_2
Product data sheet
Rev. 02 — 18 January 2008
© NXP B.V. 2008. All rights reserved.
12 of 21
Share Link: 