Datasheet > TC74HC221AP_07

TC74HC221AP_07

更新时间： 2024-11-02 05:04:11

品牌	Logo	应用领域
东芝 - TOSHIBA		振荡器
页数	文件大小	规格书
13页	479K
描述
Dual Monostable Multivibrator

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中文翻译

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数据手册

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TC74HC221AP_07 数据手册

TC74HC221AP/AF/AFN

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74HC221AP,TC74HC221AF,TC74HC221AFN

Dual Monostable Multivibrator

Note: xxxFN (JEDEC SOP) is not available in

Japan.

The TC74HC221A is a high speed CMOS MONOSTABLE

MULTIVIBRATOR fabricated with silicon gate C²MOS

TC74HC221AP

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

TC74HC221AF

(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: V

= 2.0 V more than 5 kΩ

≥ 3.0 V more than 1 kΩ

All inputs are equipped with protection circuits against static

discharge or transient excess voltage.

TC74HC221AFN

Features (Note)

•

High speed: t = 25 ns (typ.) at V

= 5 V

Low power dissipation

Standy by State: I

= 4 μA (max) at Ta = 25°C

Active State: I

= 700 μA (max) at Ta = 25°C

•

High noise immunity: V

= V

= 28% V

(min)

NIH

NIL

Output drive capability: 10 LSTTL loads

Symmetrical output impedance: |I | = I

= 4 mA (min)

Weight

∼

−

Balanced propagation delays: t

pHL

pLH

DIP16-P-300-2.54A

SOP16-P-300-1.27A

SOL16-P-150-1.27

: 1.00 g (typ.)

: 0.18 g (typ.)

: 0.13 g (typ.)

Wide operating voltage range: V

(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 V

or GND.

2007-10-01

12 3 4 5 6 7...13

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