DS2250 View Datasheet(PDF) - Dallas Semiconductor -> Maxim Integrated

Part Name

Description

Manufacturer

DS2250

Soft Microcontroller Module

Dallas Semiconductor -> Maxim Integrated 

DS2250(T) TYPICAL ICC VS. FREQUENCY

DS2250(T)

FREQUENCY OF OPERATION (MHz)

(VCC=+5V, tA=25°C)

Normal operation is measured using:

1) External crystals on XTAL1 and 2

2) All port pins disconnected

3) RST=0 volts and EA=VCC

4) Part performing endless loop writing to internal memory

Idle mode operation is measured using:

1) External clock source at XTAL1; XTAL2 floating

2) All port pins disconnected

3) RST=0 volts and EA=VCC

4) Part set in IDLE mode by software

NOTES:

1. All voltages are referenced to ground.

2. Maximum operating ICC is measured with all output pins disconnected; XTAL1 driven with tCLKR,

tCLKF = 10 ns, VIL = 0.5V; XTAL2 disconnected; EA = RST = PORT0 = VCC.

3. Idle mode ICC is measured with all output pins disconnected; XTAL1 driven at 8 MHz with tCLKR,

tCLKF = 10 ns, VIL = 0.5V; XTAL2 disconnected; EA = PORT0 = VCC, RST = VSS.

4. Stop mode ICC is measured with all output pins disconnected; EA = PORT0 = VCC; XTAL2 not

connected; RST = VSS.

5. Crystal start-up time is the time required to get the mass of the crystal into vibrational motion from

the time that power is first applied to the circuit until the first clock pulse is produced by the on-chip

oscillator. The user should check with the crystal vendor for the worst case spec on this time.

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