MC74HC390A Motorola, MC74HC390A Datasheet

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MC74HC390A

Manufacturer Part Number
MC74HC390A
Description
Dual 4-Stage Binary Ripple Counter
Manufacturer
Motorola
Datasheet

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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Product Preview
Dual 4-Stage Binary
Ripple Counter with
High–Performance Silicon–Gate CMOS
inputs are compatible with standard CMOS outputs; with pullup resistors,
they are compatible with LSTTL outputs.
of a divide–by–two and a divide–by–five section. The divide–by–two and
divide–by–five counters have separate clock inputs, and can be cascaded to
implement various combinations of
of the clock input. A separate, asynchronous reset is provided for each 4–bit
counter. State changes of the Q outputs do not occur simultaneously
because of internal ripple delays. Therefore, decoded output signals are
subject to decoding spikes and should not be used as clocks or strobes
except when gated with the Clock of the HC390A.
This document contains information on a product under development. Motorola reserves the right
to change or discontinue this product without notice.
10/95
Motorola, Inc. 1995
The MC54/74HC390A is identical in pinout to the LS390. The device
This device consists of two independent 4–bit counters, each composed
Flip–flops internal to the counters are triggered by high–to–low transitions
Output Drive Capability: 10 LSTTL Loads
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2 to 6 V
Low Input Current: 1 A
High Noise Immunity Characteristic of CMOS Devices
In Compliance with the Requirements Defined by JEDEC Standard
No 7A
Chip Complexity: 244 FETs or 61 Equivalent Gates
2 and
CLOCK A
CLOCK B
RESET
1, 15
4, 12
2, 14
LOGIC DIAGRAM
5 Sections
PIN 16 = V CC
PIN 8 = GND
COUNTER
COUNTER
2 and/or
2
5
3, 13
5, 11
6, 10
7, 9
5 up to a
Q A
Q B
Q C
Q D
100 counter.
1
REV 0
MC54/74HC390A
16
16
16
16
CLOCK A a
CLOCK B a
1
A
X
X
1
RESET a
Clock
MC54HCXXXAJ
MC74HCXXXAN
MC74HCXXXAD
MC74HCXXXADT
ORDERING INFORMATION
1
1
GND
Q Ca
Q Da
Q Aa
Q Ba
PIN ASSIGNMENT
FUNCTION TABLE
B
X
X
1
2
3
4
5
6
7
8
Reset
H
L
L
CERAMIC PACKAGE
PLASTIC PACKAGE
TSSOP PACKAGE
SOIC PACKAGE
CASE 751B–05
CASE 948F–01
CASE 620–10
CASE 648–08
16
15
14
13
12
10
11
DT SUFFIX
9
N SUFFIX
D SUFFIX
J SUFFIX
Ceramic
Plastic
SOIC
TSSOP
Increment
Increment
2 and
Action
Reset
V CC
CLOCK A b
RESET b
Q Ab
CLOCK B b
Q Bb
Q Cb
Q Db
2
5
5

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MC74HC390A Summary of contents

Page 1

... CLOCK A COUNTER CLOCK B COUNTER 2, 14 RESET PIN PIN 8 = GND This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice. 10/95 Motorola, Inc. 1995 MC54/74HC390A 100 counter CLOCK A a ...

Page 2

... For high frequency or heavy load considerations, see Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D). Î Î Î Î Î Î Î Î ...

Page 3

... NOTE: Information on typical parametric values can be found in Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D). Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...

Page 4

... NOTES: 1. For propagation delays with loads other than 50 pF, see Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D). 2. Information on typical parametric values can be found in Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D). ...

Page 5

... Figure 5. SWITCHING WAVEFORMS V CC RESET GND t PHL Q CLOCK TEST CIRCUIT TEST POINT OUTPUT DEVICE UNDER TEST * Includes all probe and jig capacitance Figure 3. 5 MC54/74HC390A 50% GND 50% t rec V CC 50% GND Figure 2. MOTOROLA ...

Page 6

... MC54/74HC390A CLOCK A CLOCK B RESET CLOCK A RESET MOTOROLA EXPANDED LOGIC DIAGRAM TIMING DIAGRAM (Q A Connected to Clock ...

Page 7

... COUNTER COUNTER Figure 5. Bi-Quinary Count MOTOROLA ...

Page 8

... 0.25 (0.010) –A – –T – SEATING PLANE 0.25 (0.010 MOTOROLA OUTLINE DIMENSIONS J SUFFIX CERAMIC PACKAGE CASE 620–10 ISSUE V –B – 0.25 (0.010 SUFFIX PLASTIC PACKAGE CASE 648–08 ...

Page 9

... Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications. All operating parameters, including “ ...

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