MC14569B Datasheet, PDF (1/12 Pages) ON Semiconductor – Programmable Divide-By-N Dual 4-Bit Binary/BCD Down Counter

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
MC14569B
Programmable Divide-By-N
Dual 4-Bit Binary/BCD
Down Counter
The MC14569B is a programmable divide–by–N dual 4–bit binary or BCD
down counter constructed with MOS P–channel and N–channel enhance-
ment mode devices (complementary MOS) in a monolithic structure.
This device has been designed for use with the MC14568B phase
comparator/counter in frequency synthesizers, phase–locked loops, and
other frequency division applications requiring low power dissipation and/or
high noise immunity.
• Speed–up Circuitry for Zero Detection
• Each 4–Bit Counter Can Divide Independently in BCD or Binary Mode
• Can be Cascaded With MC14568B, MC14522B or MC14526B for
Frequency Synthesizer Applications
• All Outputs are Buffered
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{• Schmitt Triggered Clock Conditioning}
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{MAXIMUM RATINGS* (Voltages Referenced to VSS)}
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ^Symbol
Parameter
Value
Unit
VDD DC Supply Voltage
– 0.5 to + 18.0
V
Vin, Vout Input or Output Voltage (DC or Transient) – 0.5 to VDD + 0.5 V
Iin, Iout Input or Output Current (DC or Transient),
± 10
mA
per Pin
PD Power Dissipation, per Package†
500
mW
Tstg Storage Temperature
– 65 to + 150
_C
TL
Lead Temperature (8–Second Soldering)
260
_C
* Maximum Ratings are those values beyond which damage to the device may occur.
†Temperature Derating:
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
BLOCK DIAGRAM
L SUFFIX
CERAMIC
CASE 620
P SUFFIX
PLASTIC
CASE 648
DW SUFFIX
SOIC
CASE 751G
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBDW
Plastic
Ceramic
SOIC
TA = – 55° to 125°C for all packages.
CTL = Low for Binary Count
CTL = High for BCD Count
P0 P1 P2 P3
345 6
CTL1 CTL2
2 10
P4 P5 P6 P7
11 12 13 14
VDD = PIN 16
VSS = PIN 8
9
BINARY/BCD
CLOCK
BINARY/BCD
15
CLOCK
COUNTER #1
LOAD
COUNTER #2
Q
CASCADE 7
FEEDBACK
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©MMOotoTrOolaR, IOncL. A199C5MOS LOGIC DATA
ZERO DETECT ENCODER
1 _ZERO
DETECT
MC14569B
1