File name 4568.pdfMOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Phase Comparator and Programmable Counters
The MC14568B consists of a phase comparator, a divideby4, 16, 64 or 100 counter and a programmable dividebyN 4bit binary counter (all positiveedge triggered) constructed with MOS Pchannel and Nchannel enhancement mode devices (complementary MOS) in a monolithic structure. The MC14568B has been designed for use in conjunction with a programmable dividebyN counter for frequency synthesizers and phase locked loop applications requiring low power dissipation and/or high noise immunity. This device can be used with both counters cascaded and the output of the second counter connected to the phase comparator (CTL high), or used independently of the programmable dividebyN counter, for example cascaded with a MC14569B, MC14522B or MC14526B (CTL low). · Supply Voltage Range = 3.0 to 18 V · Capable of Driving Two LowPower TTL Loads, One LowPower Schottky TTL Load or Two HTL Loads Over the Rated Temperature Range. · Chip Complexity: 549 FETs or 137 Equivalent Gates MAXIMUM RATINGS* (Voltages referenced to VSS)
Rating Symbol VDD Vin Iin PD TA Tstg DC Supply Voltage Value
MC14568B
L SUFFIX CERAMIC CASE 620
P SUFFIX PLASTIC CASE 648
D SUFFIX SOIC CASE 751B
ORDERING INFORMATION
MC14XXXBCP MC14XXXBCL MC14XXXBD Plastic Ceramic SOIC
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Unit Vdc Vdc 0.5 to + 18 ± 10 500 55 to + 125 65 to + 150 Input Voltage, All Inputs 0.5 to VDD + 0.5 DC Input Current, per Pin Power Dissipation, per Package Operating Temperature Range Storage Temperature Range mAdc mW
TA = 55° to 125°C for all packages.
TRUTH TABLE
F Pin 10 0 0 1 1 G Pin 11 0 1 0 1 Division Ratio of Counter D1 4 16 64 100
_C _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
The divide by zero state on the programmable dividebyN 4bit binary counter, D2, is illegal.
BLOCK DIAGRAM
PCin 14 (REF.) B TG TG C1 9 COUNTER D1 10 F CTL 15 TG "0" 3 PE 2 DP3 4BIT PROGRAMMABLE COUNTER D2 DP0 1 Q1/C2 D2 "0" VDD = PIN 16 VSS = PIN 8
REV 3 1/94
A
PHASE COMPARATOR
13 PCout 12 LD
CTL HIGH
11 G PCin P/C C1 D1 C1 PCout LD PCin
CTL LOW
PCout P/C LD D1
"0" Q1/C2
D2 Q1/C2
4
5 6 DP2 DP1
7
©MOTOROLA CMOS LOGIC DATA Motorola, Inc. 1995
MC14568B 1
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ELECTRICAL CHARACTERISTICS (Voltages Referenced to VSS)
Characteristic Symbol VOL VDD Vdc 5.0 10 15 5.0 10 15 5.0 10 15 VIH 5.0 10 15 IOH Source 5.0 5.0 10 15 IOL 5.0 10 15 15 -- 5.0 10 15 5.0 10 15 1.2 0.25 0.62 1.8 0.64 1.6 4.2 -- -- -- -- -- -- -- -- -- -- -- -- ± 0.1 -- 5.0 10 20 1.0 0.2 0.5 1.5 0.51 1.3 3.4 -- -- -- -- -- 1.7 0.36 0.9 3.5 0.88 2.25 8.8 ± 0.00001 5.0 0.00 |