tc74vhc123af TOSHIBA Semiconductor CORPORATION, tc74vhc123af Datasheet

tc74vhc123af

Manufacturer Part Number

tc74vhc123af

Description

Dual Monostable Multivibrator

Manufacturer

TOSHIBA Semiconductor CORPORATION

Datasheet

1.TC74VHC123AF.pdf (16 pages)

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Download datasheet (407Kb)

Dual Monostable Multivibrator

MONOSTABLE MULTIVIBRATOR fabricated with silicon gate

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

time signal (t

device may also be triggered by using CLR input (positive

edge).

a time period determined by the external resistor and capacitor

applied to the input pins without regard to the supply voltage.

This device can be used to interface 5 V to 3 V systems and two

supply systems such as battery back up. This circuit prevents

device destruction due to mismatched supply and input voltages.

Features

•

The TC74VHC123A/221A are high speed CMOS

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

After triggering, the output stays in a MONOSTABLE state for

Limits for C

An input protection circuit ensures that 0 to 5.5 V can be

TC74VHC123AF,TC74VHC123AFN,TC74VHC123AFT,TC74VHC123AFK

TC74VHC221AF,TC74VHC221AFN,TC74VHC221AFT,TC74VHC221AFK

MOS technology.

High speed: t

Low power dissipation

Standby state: 4 µ A (max) at Ta = 25°C

Active state: 600 µ A (max) at Ta = 25°C

High noise immunity: V

Power down protection is equipped with all inputs.

Balanced propagation delays: t

Wide operating voltage range: V

Pin and function compatible with 74HC123A/221A

, C

TC74VHC123AF/AFN/AFT/AFK

TC74VHC221AF/AFN/AFT/AFK

External capacitor, C

External resistor, R

). A low level at the CLR input breaks this state.

= t

and R

= 1 s) as they are schmitt trigger inputs. This

= 8.1 ns (typ.) at V

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

are:

: V

Weight

SOP16-P-300-1.27A

SOP16-P-300-1.27

SOL16-P-150-1.27

TSSOP16-P-0044-0.65A : 0.06 g (typ.)

VSSOP16-P-0030-0.50

: No limit

NIH

= 2.0 V more than 5 k Ω

≥ 3.0 V more than 1 k Ω

= V

pLH

NIL

∼ − t

(opr) = 2 to 5.5 V

= 28% V

= 5 V

pHL

Non-Retriggerble

Retriggerble

(min)

: 0.18 g (typ.)

: 0.13 g (typ.)

: 0.02 g (typ.)

TC74VHC123,221AF/AFN/AFT/AFK

Note: xxxFN (JEDEC SOP) is not available in

TC74VHC123AF, TC74VHC221AF

TC74VHC123AFN, TC74VHC221AFN

TC74VHC123AFT, TC74VHC221AFT

TC74VHC123AFK, TC74VHC221AFK

Japan.

2006-06-01

Related parts for tc74vhc123af

tc74vhc123af Summary of contents

Page 1

... SOP16-P-300-1.27A SOP16-P-300-1.27 SOL16-P-150-1.27 TSSOP16-P-0044-0.65A : 0.06 g (typ.) VSSOP16-P-0030-0.50 TC74VHC123,221AF/AFN/AFT/AFK Retriggerble Note: xxxFN (JEDEC SOP) is not available in Non-Retriggerble TC74VHC123AF, TC74VHC221AF TC74VHC123AFN, TC74VHC221AFN = TC74VHC123AFT, TC74VHC221AFT = 28% V (min) CC ∼ − t pHL (opr 5.5 V TC74VHC123AFK, TC74VHC221AFK : 0.18 g (typ.) : 0.18 g (typ.) : 0.13 g (typ.) : 0.02 g (typ.) 1 Japan ...

Page 2

Pin Assignment CLR GND 8 9 (top view) IEC Logic Symbol TC74VHC123A (1) ...

Page 3

Block Diagram (Note 1) (Note CLR Note are external Capacitor, resistor, ...

Page 4

System Diagram TC74VHC123A CLR Timing Chart TC74VHC123A A B CLR wOUT TC74VHC123,221AF/AFN/AFT/AFK V ref ...

Page 5

System Diagram TC74VHC221A CLR Timing Chart TC74VHC221A A B CLR wOUT TC74VHC123,221AF/AFN/AFT/AFK V ref ...

Page 6

Functional Description (1) Standby state The external capacitor (C triggering, the Q and Q P comparators that relate to the timing of the output pulse, and two reference voltage supplies turn off. The total supply current is only leakage current. ...

Page 7

Absolute Maximum Ratings (Note) Characteristics Supply voltage range DC input voltage DC output voltage Input diode current Output diode current DC output current DC V /ground current CC Power dissipation Storage temperature Note: Exceeding any of the absolute maximum ratings, ...

Page 8

Electrical Characteristics DC Characteristics Characteristics Symbol High-level input V IH voltage Low-level input V IL voltage High-level output voltage Low-level output voltage Input leakage ...

Page 9

Timing Requirements (input Characteristics Symbol t w (L) Minimum pulse width t w (H) Minimum clear width t w (L) ( CLR ) Minimum retrigger time t rr (Note) Note: For TC74VHC123A only = t AC Characteristics (input: ...

Page 10

C Characteristics (typ.) wOUT 4 MΩ 100 kΩ kΩ ...

Page 11

Package Dimensions Weight: 0.18 g (typ.) TC74VHC123,221AF/AFN/AFT/AFK 11 2006-06-01 ...

Page 12

Package Dimensions Weight: 0.18 g (typ.) TC74VHC123,221AF/AFN/AFT/AFK 12 2006-06-01 ...

Page 13

Package Dimensions (Note) Note: This package is not available in Japan. Weight: 0.13 g (typ.) TC74VHC123,221AF/AFN/AFT/AFK 13 2006-06-01 ...

Page 14

Package Dimensions Weight: 0.06 g (typ.) TC74VHC123,221AF/AFN/AFT/AFK 14 2006-06-01 ...

Page 15

Package Dimensions Weight: 0.02 g (typ.) TC74VHC123,221AF/AFN/AFT/AFK 15 2006-06-01 ...

Page 16

Note: Lead (Pb)-Free Packages SOP16-P-300-1.27A SOL16-P-150-1.27 TSSOP16-P-0044-0.65A VSSOP16-P-0030-0.50 RESTRICTIONS ON PRODUCT USE • The information contained herein is subject to change without notice. • TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices ...

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