MC14526BCL Motorola, MC14526BCL Datasheet

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MC14526BCL

Manufacturer Part Number
MC14526BCL
Description
Presettable 4-bit down counter
Manufacturer
Motorola
Datasheet

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Part Number:
MC14526BCL
Manufacturer:
MOTOROLA
Quantity:
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Presettable 4-Bit Down Counters
constructed with MOS P–channel and N–channel enhancement mode
devices in a monolithic structure.
with a decoded “0” state output for divide–by–N applications. In single stage
applications the “0” output is applied to the Preset Enable input. The
Cascade Feedback input allows cascade divide–by–N operation with no
additional gates required. The Inhibit input allows disabling of the pulse
counting function. Inhibit may also be used as a negative edge clock.
ers, phase–locked loops, and other frequency division applications requiring
low power dissipation and/or high noise immunity.
* Maximum Ratings are those values beyond which damage to the device may occur.
†Temperature Derating:
X = Don’t Care
NOTES:
REV 3
1/94
MAXIMUM RATINGS*
V in , V out
Clock Reset
** Output “0” is high when reset is low, only if CF is high and count is 0000.
Symbol
MOTOROLA CMOS LOGIC DATA
I in , I out
* Output “0” is low when reset goes high only it PE and CF are low.
The MC14522B BCD counter and the MC14526B binary counter are
These devices are presettable, cascadable, synchronous down counters
These complementary MOS counters can be used in frequency synthesiz-
Motorola, Inc. 1995
V DD
Supply Voltage Range = 3.0 Vdc to 18 Vdc
Logic Edge–Clocked Design — Incremented on Positive Transition of
Clock or Negative Transition of Inhibit
Asynchronous Preset Enable
Capable of Driving Two Low–power TTL Loads or One Low–power
Schottky TTL Load Over the Rated Temperature Range
X
X
X
X
X
X
X
X
H
H
H
H
H
T stg
L
L
P D
T L
Plastic “P and D/DW” Packages: – 7.0 mW/ _ C From 65 _ C To 125 _ C
Ceramic “L” Packages: – 12 mW/ _ C From 100 _ C To 125 _ C
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
DC Supply Voltage
Input or Output Voltage (DC or Transient)
Input or Output Current (DC or Transient),
per Pin
Power Dissipation, per Package†
Storage Temperature
Lead Temperature (8–Second Soldering)
Inhibit
X
X
X
X
X
X
X
X
H
L
L
L
L
Inputs
(Voltages Referenced to V SS )
Enable
Preset
Parameter
H
H
X
X
X
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
FUNCTION TABLE
Feedback
Cascade
H
H
H
X
X
X
X
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
Output
“0”
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
– 0.5 to V DD + 0.5
– 0.5 to + 18.0
Asynchronous reset*
Asynchronous reset*
Asynchronous reset
Asynchronous reset
Asynchronous reset
Asynchronous reset
Asynchronous reset
Asynchronous preset
Decrement inhibited
Decrement inhibited
Decrement inhibited
No change** (inactive edge)
No change** (inactive edge)
No change** (inactive edge)
No change** (inactive edge)
Decrement**
Decrement**
Decrement**
Decrement**
Decrement**
Decrement**
Decrement**
– 65 to + 150
Value
500
260
10
Resulting
Resulting
Function
Function
Unit
mW
mA
_ C
_ C
V
V
guard against damage due to high static
voltages or electric fields. However, pre-
cautions must be taken to avoid applications of
any voltage higher than maximum rated volt-
ages to this high–impedance circuit. For proper
operation, V in and V out should be constrained
to the range V SS
appropriate logic voltage level (e.g., either V SS
or V DD ). Unused outputs must be left open.
This device contains protection circuitry to
Unused inputs must always be tied to an
T A = – 55 to 125 C for all packages.
INHIBIT
CLOCK
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBDW
MC14522B
MC14526B
V SS
Q3
PE
Q0
P3
P0
PIN ASSIGNMENT
1
2
3
4
5
6
7
8
v
MC14522B MC14526B
(V in or V out )
16
15
14
13
12
10
11
9
DW SUFFIX
CASE 751G
CERAMIC
CASE 620
CASE 648
L SUFFIX
P SUFFIX
Q2
V DD
P2
CF
“0”
P1
RESET
Q1
PLASTIC
Plastic
Ceramic
SOIC
SOIC
v
V DD .
1

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MC14526BCL Summary of contents

Page 1

... X = Don’t Care NOTES: * Output “0” is low when reset goes high only it PE and CF are low. ** Output “0” is high when reset is low, only high and count is 0000. REV 3 1/94 MOTOROLA CMOS LOGIC DATA Motorola, Inc. 1995 Value Unit – 0 18.0 V – ...

Page 2

... Adc 5.0 7.5 — — pF 0.005 5.0 — 150 Adc 0.010 10 — 300 0.015 20 — 600 Adc MOTOROLA CMOS LOGIC DATA ...

Page 3

... Preset Enable Pulse Width Reset Pulse Width Reset Removal Time * The formulas given are for the typical characteristics only #Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance. MOTOROLA CMOS LOGIC DATA ( pF Symbol TLH , t THL 5 ...

Page 4

... Figure 3. Power Dissipation MC14522B MC14526B RESET Q3 INHIBIT CLOCK “0” EXTERNAL V SS POWER SUPPLY Figure 2. Typical Output Sink Characteristics Test Circuit TEST POINT Q or “0” DEVICE UNDER TEST * Includes all probe and jig capacitance. Figure 4. Test Circuit MOTOROLA CMOS LOGIC DATA ...

Page 5

... TLH t THL Figure 90% ANY P 50% 10% t PLH t PHL ANY Q 50% Figure 90% PRESET 50% ENABLE 10% t PHL “0” 50% Figure 9. MOTOROLA CMOS LOGIC DATA SWITCHING WAVEFORMS 90% 50% INHIBIT 10 90% ANY Q 50% OR “0” 10% RESET V DD ANY CLOCK ANY P 50% GND t PLH PRESET ...

Page 6

... Q0, Q1, Q2, Q3 (Pins 7, 9, 15, 1) — These are the syn- chronous counter outputs the LSB (Pin 8) — The most negative power supply potential. This pin is usually ground (Pin 16) — The most positive power supply potential may range from with respect STATE DIAGRAMS MC14526B MOTOROLA CMOS LOGIC DATA ...

Page 7

... MC14522B LOGIC DIAGRAM (BCD Down Counter INHIBIT CLOCK 6 10 RESET MC14526B LOGIC DIAGRAM (Binary Down Counter INHIBIT CLOCK 6 10 RESET MOTOROLA CMOS LOGIC DATA “0” “0” MC14522B MC14526B 7 ...

Page 8

... N while the Clock is high and the cycle is renewed BUFFER “0” RESET INHIBIT V SS CLOCK PE Figure 11. N Counter CLOCK CF INHIBIT V SS RESET “0” PE Figure 12. 3 Stages Cascaded MSB N8 N9 N10 N11 CLOCK CF INHIBIT V SS RESET “0” PE BUFFER f in MOTOROLA CMOS LOGIC DATA N ...

Page 9

... N SEATING PLANE 0.25 (0.010 –A– 0.25 (0.010) M MOTOROLA CMOS LOGIC DATA OUTLINE DIMENSIONS L SUFFIX CERAMIC DIP PACKAGE CASE 620–10 ISSUE V –B– 0.25 (0.010 SUFFIX PLASTIC DIP PACKAGE CASE 648–08 ISSUE R L SEATING –T– PLANE ...

Page 10

... Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur ...

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