tc74hc423ap TOSHIBA Semiconductor CORPORATION, tc74hc423ap Datasheet

tc74hc423ap

Manufacturer Part Number

tc74hc423ap

Description

Dual Retriggerable Monostable Multivibrator

Manufacturer

TOSHIBA Semiconductor CORPORATION

Datasheet

1.TC74HC423AP.pdf (12 pages)

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Dual Retriggerable Monostable Multivibrator

MULTIVIBRATOR fabricated with silicon gate C

technology.

LSTTL while maintaining the CMOS low power dissipation.

input (positive edge). These inputs are valid for a slow rise/fall

time signal (tr = tf = 1 s) as they are schmitt trigger inputs.

a time period determined by the external resistor and capacitor

(Rx, Cx ). A low level at the CLR input breaks this state. In the

MONOSTABLE state, if a new trigger is applied, it extends the

MONOSTABLE period (retrigger mode).

discharge or transient excess voltage.

Features (Note)

•

The TC74HC423A is a high speed CMOS MONOSTABLE

It achieves the high speed operation similar to equivalent

There are two trigger inputs, A input (negative edge), and B

After triggering, the output stays in a MONOSTABLE state for

Limitations for Cx and Rx are:

All inputs are equipped with protection circuits against static

High speed: t

Low power dissipation

High noise immunity: V

Output drive capability: 10 LSTTL loads

Symmetrical output impedance: |I

Balanced propagation delays: t

Wide operating voltage range: V

Pin and function compatible with 74LS423

Note:

External capacitor, Cx: No limit

External resistor, Rx: V

Standby state: I

Active state: I

TC74HC423AP,TC74HC423AF

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

= 25 ns (typ.) at V

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

NIH

= 700 μ A (max) at V

= 4 μ A (max) at Ta = 25°C

= 2.0 V more than 5 k Ω

≥ 3.0 V more than 1 k Ω

= V

pLH

NIL

∼ − t

(opr) = 2~6 V

= 28% V

= 5 V

| = I

pHL

= 4 mA (min)

MOS

= 5 V

(min)

or GND.

Weight

DIP16-P-300-2.54A

SOP16-P-300-1.27A

TC74HC423AP

TC74HC423AF

TC74HC423AP/AF

: 1.00 g (typ.)

: 0.18 g (typ.)

2007-10-01

Related parts for tc74hc423ap

tc74hc423ap Summary of contents

Page 1

... 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 MOS 28% V (min) NIL (min ∼ − t pLH pHL (opr GND TC74HC423AP/AF TC74HC423AP TC74HC423AF Weight DIP16-P-300-2.54A : 1.00 g (typ.) SOP16-P-300-1.27A : 0.18 g (typ.) 2007-10-01 ...

Page 2

... In the event a system does not satisfy the above condition, an external clamping diode (Dx) is needed to protect the IC from in rush current. level in the wait state, i.e. when no trigger is applied. CC drops rapidly, there will be some possibility of damaging the IC through in rush CC 2 TC74HC423AP/AF drops slowly, the 2007-10-01 ...

Page 3

... Don’t care System Diagram CLR Note Output Enable Inhibit Inhibit Output Enable Reset V ref F TC74HC423AP/AF V ref 2007-10-01 ...

Page 4

... That means, before CC transistors which are connected to the Rx/Cx node are in the off state. Two N . The voltage level of the Rx/Cx node drops. If the Rx/Cx N turns off. At that moment C1 stops but C2 continues operating. 4 TC74HC423AP/AF is turned on. The N and Cx. CC turns on and Cx is charged rapidly to P 2007-10-01 ...

Page 5

... Rating 0~V OUT CC − 40~85 T opr = 2.0 V) 0~1000 ( 4 0~500 ( 6.0 V) 0~400 ( limitation ≥ 2.0 V) (Note ≥ ≥ 3.0 V) (Note TC74HC423AP/AF Unit °C Unit °C ns (Note 2) F Ω 2007-10-01 ...

Page 6

... I 6 GND 6 GND 6 GND 6 2 GND IN CC 4.5 Rx/ 6.0 6 TC74HC423AP/ 25° − 40~85°C Min Typ. Max Min Max ⎯ ⎯ ⎯ 1.50 1.50 ⎯ ⎯ ⎯ 3.15 3.15 ⎯ ⎯ ⎯ 4.20 4.20 ⎯ ⎯ ⎯ 0.50 0.50 ⎯ ⎯ ⎯ 1.35 1.35 ⎯ ...

Page 7

... Ω 100 Ω 0.01 μ 25°C, input Symbol Test Condition t TLH ⎯ t THL t pLH ⎯ t pHL t pLH ⎯ t pHL 7 TC74HC423AP/ − 25°C ~85°C V (V) Typ. Limit Limit CC ⎯ 2 ⎯ 4 ⎯ 6 ⎯ 2 ⎯ ...

Page 8

... 6.0 CC 2.0 4.5 6.0 2.0 4.5 6.0 ⎯ ⎯ ⎯ ⎯ ’･duty/100 + I /2 (per circuit TC74HC423AP/ 25° − 40~85°C Typ. Max Min Max ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 102 210 265 ⎯ ⎯ ⎯ ...

Page 9

... Output Pulse Width Constant K – Supply Voltage (typical) t – Cx Characteristics (typ.) WOUT TC74HC423AP/AF t – V Characteristics (typ 2007-10-01 ...

Page 10

... Package Dimensions Weight: 1.00 g (typ.) TC74HC423AP/AF 10 2007-10-01 ...

Page 11

... Package Dimensions Weight: 0.18 g (typ.) TC74HC423AP/AF 11 2007-10-01 ...

Page 12

... Please contact your sales representative for product-by-product details in this document regarding RoHS compatibility. Please use these products in this document in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances. Toshiba assumes no liability for damage or losses occurring as a result of noncompliance with applicable laws and regulations. TC74HC423AP/AF 12 20070701-EN GENERAL 2007-10-01 ...

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