TC74HC191AP TOSHIBA [Toshiba Semiconductor], TC74HC191AP Datasheet

TC74HC191AP

Manufacturer Part Number

TC74HC191AP

Description

4-Bit Binary Up/Down Counter

Manufacturer

TOSHIBA [Toshiba Semiconductor]

Datasheet

1.TC74HC191AP.pdf (12 pages)

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4-Bit Binary Up/Down Counter

COUNTERs fabricated with silicon gate C2MOS technology.

LSTTL while maintaining the CMOS low power dissipation.

low.

DOWN/UP. When D/U is low, the counter counts up; when D/U is

high, it counts down. Counting occurs on the positive going

transition of the clock input.

CLOCK OUT, MAX/MIN) are provided to permit easy cascading

of the counters, which facilitates easy implementation of N-bit

counters without using external gates.

discharge or transient excess voltage.

Features

•

Pin Assignment

The TC74HC191A are high speed CMOS 4-BIT UP/DOWN

It achieves the high speed operation similar to equivalent

The TC74HC191A is 4-bit binary up/down counter.

They have an asynchronous load input (LOAD) which is active

The direction of counting is determined by the level of

Enable input (ENABLE) and two carry inputs (RIPPLE

All inputs are equipped with protection circuits against static

High speed: fmax = 48 MHz (typ.) at V

Low power dissipation: I

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 74LS191

TC74HC191AP,TC74HC191AF

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

NIH

= 4 μA (max) at Ta = 25°C

= V

pLH

NIL

∼ − t

(opr) = 2~6 V

= 28% V

| = I

pHL

= 5 V

= 4 mA (min)

(min)

Weight

DIP16-P-300-2.54A

SOP16-P-300-1.27A

TC74HC191AP

TC74HC191AF

TC74HC191AP/AF

: 1.00 g (typ.)

: 0.18 g (typ.)

2007-10-01

Related parts for TC74HC191AP

TC74HC191AP Summary of contents

Page 1

... Wide operating voltage range: V • Pin and function compatible with 74LS191 Pin Assignment = 28% V (min) NIL (min ∼ − t pLH pHL (opr TC74HC191AP/AF TC74HC191AP TC74HC191AF Weight DIP16-P-300-2.54A : 1.00 g (typ.) SOP16-P-300-1.27A : 0.18 g (typ.) 2007-10-01 ...

Page 2

... IEC Logic Symbol Truth Table Inputs LOAD ENABLE Don’t care a~d: Inputs level of A~D Outputs Function Preset Data Up Count Up Count Down Count Down Count No Change No Count No Change No Count 2 TC74HC191AP/AF 2007-10-01 ...

Page 3

... Timing Chart TC74HC191AP/AF 3 2007-10-01 ...

Page 4

... System Diagram TC74HC191AP/AF 4 2007-10-01 ...

Page 5

... I OUT ± 500 (DIP) (Note 2)/180 (SOP) D − 65~150 T stg Symbol Rating 0~V OUT CC − 40~85 T opr = 2.0 V) 0~1000 ( 4 0~500 ( 6.0 V) 0~400 ( TC74HC191AP/AF Unit °C Unit °C ns 2007-10-01 ...

Page 6

... GND 6 GND 6 TC74HC191AP/ 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

... Test Condition t W (H) ⎯ (L) ⎯ (L) ⎯ ⎯ ⎯ ⎯ ⎯ t rem ⎯ TC74HC191AP/ − 25°C Unit ~85°C V (V) Typ. Limit Limit CC ⎯ 2.0 100 125 ⎯ 4 ⎯ 6 ⎯ 2 ⎯ ...

Page 8

... TC74HC191AP/ ns) f Min Typ. Max ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ...

Page 9

... TC74HC191AP/ 25° − 40~85°C Typ. Max Min Max ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 88 180 225 ⎯ ⎯ ⎯ ⎯ ⎯ ...

Page 10

... Package Dimensions Weight: 1.00 g (typ.) TC74HC191AP/AF 10 2007-10-01 ...

Page 11

... Package Dimensions Weight: 0.18 g (typ.) TC74HC191AP/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. TC74HC191AP/AF 12 20070701-EN GENERAL 2007-10-01 ...

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