MC14534BCL Motorola, MC14534BCL Datasheet

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MC14534BCL

Manufacturer Part Number
MC14534BCL
Description
DIP24
Manufacturer
Motorola
Datasheets

Specifications of MC14534BCL

Date_code
02+
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
5 Cascaded BCD Counters
respective outputs multiplexed using an internal scanner. Outputs of each
counter are selected by the scanner and appear on four (BCD) pins.
Selection is indicated by a logic high on the appropriate digit select pin. Both
BCD and digit select outputs have three–state controls providing an
“open–circuit” when these controls are high and allowing multiplexing.
Cascading may be accomplished by using the carry–out pin. The counters
and scanner can be independently reset by applying a high to the counter
master reset (MR) and the scanner reset (SR). The MC14534B was
specifically designed for application in real time or event counters where
continual updating and multiplexed displays are used.
REV 3
1/94
MOTOROLA CMOS LOGIC DATA
The MC14534B is composed of five BCD ripple counters that have their
Motorola, Inc. 1995
Four Operating Modes (See truth table)
Input Error Detection Circuit
Clock Conditioning Circuits for Slow Transition Inputs
Counter Sequences on Positive Transition of Clock A
Supply Voltage Range = 3.0 Vdc to 18 Vdc
Capable of Driving Two Low–power TTL Loads or One Low–power
Schottky TTL Load Over the Rated Temperature Range
SCANNER
SCANNER
CLOCK B
CLOCK A
CLOCK
MASTER
RESET
MODE A
MODE B
RESET
23
10
4
2
5
6
9
NOTE:
C 10
Q0
CONTROL
OUTPUT
UNITS
MUX
SHAPER
PULSE
Q3
C n+4
=
3–STATE
OUTPUT BUFFER
CONTROL
CARRY
SCANNER
22
TO CAPACITORS
PULSE ERROR
R
DETECTOR
C 10
7
DS1
Q0
TENS
MUX
1
8
Q3
DS2
C n+4
BLOCK DIAGRAM
3
DIGIT SELECT
ERROR OUT
14
DS3
C 10
Q0
HUNDREDS
16
MUX
DS4
Q3
C n+4
11
DS5
CONTROL
TEST
15
C 10
3–STATE DIGIT
CONTROL
THOUSANDS
Q0
MUX
Q3
C n+4
T A = – 55 to 125 C for all packages.
ORDERING INFORMATION
3–State Control
MC14XXXBCP
MC14XXXBCL
MC14XXXBDW
MC14534B
C 10
THOUSANDS
Q0
0
1
MUX
TEN
V DD = PIN 24
V SS = PIN 12
Q3
C n+4
High Impedance
21
Q or DS
DW SUFFIX
CASE 751E
CERAMIC
CASE 623
CASE 709
L SUFFIX
P SUFFIX
PLASTIC
Plastic
Ceramic
SOIC
Out
3–STATE BCD
CONTROL
13
17
18
19
20
SOIC
MC14534B
CARRY OUT
Q3
Q2
Q1
Q0
BCD
OUT
1

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