MC54-74HC390

Manufacturer Part NumberMC54-74HC390
Description
ManufacturerONSEMI [ON Semiconductor]
MC54-74HC390 datasheet
 


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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Dual 4-Stage Binary
Ripple Counter with
2 and
5 Sections
High–Performance Silicon–Gate CMOS
The MC54/74HC390 is identical in pinout to the LS390. The device inputs
are compatible with standard CMOS outputs; with pullup resistors, they are
compatible with LSTTL outputs.
This device consists of two independent 4–bit counters, each composed
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
2 and/or
Flip–flops internal to the counters are triggered by high–to–low transitions
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 HC390.
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
LOGIC DIAGRAM
2
1, 15
CLOCK A
COUNTER
5
4, 12
CLOCK B
COUNTER
2, 14
RESET
PIN 16 = V CC
PIN 8 = GND
10/95
Motorola, Inc. 1995
MC54/74HC390
16
16
5 up to a
100 counter.
16
CLOCK A a
CLOCK B a
3, 13
Q A
5, 11
Q B
6, 10
Q C
7, 9
Q D
1
REV 6
J SUFFIX
CERAMIC PACKAGE
CASE 620–10
1
N SUFFIX
PLASTIC PACKAGE
CASE 648–08
1
D SUFFIX
SOIC PACKAGE
CASE 751B–05
1
ORDERING INFORMATION
MC54HCXXXJ
Ceramic
MC74HCXXXN
Plastic
MC74HCXXXD
SOIC
PIN ASSIGNMENT
1
16
V CC
CLOCK A b
RESET a
2
15
Q Aa
3
14
RESET b
4
13
Q Ab
Q Ba
5
12
CLOCK B b
Q Ca
6
11
Q Bb
Q Da
7
10
Q Cb
GND
8
9
Q Db
FUNCTION TABLE
Clock
A
B
Reset
Action
X
X
H
Reset
2 and
5
X
L
Increment
2
X
L
Increment
5

MC54-74HC390 Summary of contents

  • Page 1

    ... Ripple Counter with 2 and 5 Sections High–Performance Silicon–Gate CMOS The MC54/74HC390 is identical in pinout to the LS390. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. This device consists of two independent 4–bit counters, each composed of a divide– ...

  • Page 2

    ... MC54/74HC390 Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...

  • Page 3

    ... MC54/74HC390 Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...

  • Page 4

    ... MC54/74HC390 INPUTS Clock A (Pins 1, 15) and Clock B (Pins 4, 15) Clock A is the clock input to the 2 counter; Clock B is the clock input to the 5 counter. The internal flip–flops are toggled by high–to–low transitions of the clock input. CONTROL INPUTS Reset (Pins 2, 14) Asynchronous reset. A high at the Reset input prevents counting, resets the internal flip– ...

  • Page 5

    ... High–Speed CMOS Logic Data DL129 — Rev 6 EXPANDED LOGIC DIAGRAM TIMING DIAGRAM (Q A Connected to Clock MC54/74HC390 MOTOROLA ...

  • Page 6

    ... MC54/74HC390 Each half of the MC54/74HC390 has independent 5 sections (except for the Reset function). The counters can be connected to give BCD or bi–quinary (2–5) count sequences. If Output connected to the Clock B input (Figure 4), a decade divider with BCD output is obtained. The function table for the BCD count sequence is given in Table 1 ...

  • Page 7

    ... MC54/74HC390 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 4. DIM F MAY NARROW TO 0.76 (0.030) WHERE THE LEAD ENTERS THE CERAMIC BODY. INCHES MILLIMETERS DIM MIN ...

  • Page 8

    ... JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315 HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 *MC54/74HC390/D* 8 MC54/74HC390/D High–Speed CMOS Logic Data DL129 — Rev 6 ...