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MK3233

Handheld System Clock Synthesizer

Integrated Circuit Systems 

MK3233

I C R O C LOC K Handheld System Clock Synthesizer

Electrical Specifications

Parameter

Conditions

ABSOLUTE MAXIMUM RATINGS (note 1)

Minimum Typical Maximum Units

Supply Voltage, VDD

Referenced to GND

7

V

Inputs and Clock Outputs

Referenced to GND

-0.5

VDD+0.5

V

Ambient Operating Temperature

-20

70

°C

Soldering Temperature

Max of 10 seconds

260

°C

Storage Temperature

-65

DC CHARACTERISTICS (at 5.0 V unless otherwise noted)

150

°C

Operating Voltage, VDD

3.0

5.5

V

Operating Voltage, VDD32

2.0

5.5

V

Input High Voltage, VIH

VDD=5 V

2.0

V

Input Low Voltage, VIL

VDD=5 V

0.8

V

Output High Voltage, VOH

VDD=5 V, IOH=-25mA 2.4

V

Output Low Voltage, VOL

VDD=5 V, IOL=25mA

0.4

V

Input High Voltage, VIH

VDD=3.3 V

1.9

V

Input Low Voltage, VIL

VDD=3.3 V

0.4

V

Output High Voltage, VOH

VDD=3.3 V, IOH=-8mA 2.4

V

Output Low Voltage, VOL

VDD=3.3 V, IOL=8mA

0.4

V

IDD Operating Supply Current, 5 V

No Load, 50MHz

11

mA

IDD32 with only 32 kHz running, 5 V

No Load

3.5

µA

IDD Operating Supply Current, 3.3 V

No Load, 50MHz

6.5

mA

IDD32 with only 32 kHz output running, 3.3 V No Load

2.5

µA

IDD32, only 32 kHz osc. running, 3.3 V, note 2 32kHz output off. PD=0

1

µA

Short Circuit Current, 5 V

32 kHz output

±30

mA

Short Circuit Current, 5 V

CPU output

±100

mA

Input Capacitance

7

pF

AC CHARACTERISTICS (at 5.0 V unless otherwise noted)

Input Frequency

32.768

kHz

Output Clock Rise and Fall Time, 0.2 to 0.8VDD

2

ns

Output Clock Duty Cycle, all MHz clocks

At VDD/2

45

49 to 51

55

%

32.768 kHz Clock Duty Cycle

At VDD32/2

57

%

Absolute Clock Period Jitter, CPU clock

20 to 50 MHz

-500

500

ps

Power up time, CPU off to 50 MHz, 32k running VDD=3.3 or 5 V

9

ms

Transition time, 8 MHz to 50 MHz

VDD=3.3 or 5 V

4

ms

Transition time, 50 MHz to 8 MHz

VDD=3.3 or 5 V

2.5

Power on time,VDD32=0 V to all clocks stable 32.768kHz crystal with ESR ≤25kΩ

500

ms

1000

ms

Power on time, all power down pins taken high 32.768kHz oscillator running

15

ms

Note 1: Stresses beyond those listed under Absolute Maximum Ratings could cause permanent damage to the device. Prolonged

exposure to levels above the operating limits but below the Absolute Maximums may affect device reliability.

Note 2: When PD=0 (low) and VDD32 is greater than 2.0V, then the 32kHz oscillator will continue to run on the chip, but the

output is turned off. This allows for a quick power-up (<20ms), while the chip is only consuming approximately 1µA.

MDS 3233 F

3

Revision 11070

Printed 11/16/00

Integrated Circuit Systems, Inc.• 525 Race Street• San Jose • CA • 95126• (408) 295-9800 tel • www.icst.com

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