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TC74HC221AP Arkusz danych(PDF) 1 Page - Toshiba Semiconductor

Numer części TC74HC221AP
Szczegółowy opis  Dual Monostable Multivibrator
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Producent  TOSHIBA [Toshiba Semiconductor]
Strona internetowa  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TC74HC221AP Arkusz danych(HTML) 1 Page - Toshiba Semiconductor

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TC74HC221AP/AF/AFN
2007-10-01
1
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HC221AP,TC74HC221AF,TC74HC221AFN
Dual Monostable Multivibrator
The TC74HC221A is a high speed CMOS MONOSTABLE
MULTIVIBRATOR fabricated with silicon gate C2MOS
technology.
It achieves the high speed operation similar to equivalent
LSTTL while maintaining the CMOS low power dissipation.
There are two trigger inputs,
A input (negative edge), and B
input (positive edge). These inputs are valid for a slow rise/fall
time signal (tr = tf = 1 s) as they are schmitt trigger inputs. This
device may also be triggered by using CLR input (positive
edge).
After triggering, the output stays in a MONOSTABLE state for
a time period determined by the external resistor and capacitor
(Rx, Cx ). A low level at the CLR input breaks this state.
Limits for Cx and Rx are:
External capacitor, Cx: No limit
External resistor, Rx: VCC = 2.0 V more than 5 kΩ
VCC ≥ 3.0 V more than 1 kΩ
All inputs are equipped with protection circuits against static
discharge or transient excess voltage.
Features (Note)
• High speed: tpd = 25 ns (typ.) at VCC = 5 V
• Low power dissipation
Standy by State: ICC = 4 μA (max) at Ta = 25°C
Active State: ICC = 700 μA (max) at Ta = 25°C
• High noise immunity: VNIH = VNIL = 28% VCC (min)
• Output drive capability: 10 LSTTL loads
• Symmetrical output impedance: |IOH| = IOL = 4 mA (min)
• Balanced propagation delays: tpLH ∼− tpHL
• Wide operating voltage range: VCC (opr) = 2 to 6 V
• Pin and function compatible with 74LS221
Note:
In the case of using only one circuit, CLR should be
tied to GND, Rx/Cx・Cx・Q・ Q should be tied to OPEN, the other inputs should be tied to VCC or GND.
Note: xxxFN (JEDEC SOP) is not available in
Japan.
TC74HC221AP
TC74HC221AF
TC74HC221AFN
Weight
DIP16-P-300-2.54A
: 1.00 g (typ.)
SOP16-P-300-1.27A
: 0.18 g (typ.)
SOL16-P-150-1.27
: 0.13 g (typ.)


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