4

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ACE1502 Product Family Rev. 1.7

All measurements are valid for ambient operating temperature unless otherwise stated.

5. The maximum permissible frequency is guaranteed by design but is not 100% tested

6. The parameter is characterized but is not 100% tested, contact Fairchild for additional characterization data.

ACE1502 Electrical Characteristics for programming

All data valid at ambient temperature between 3.0V and 3.6V. The following characteristics are guaranteed

by design but are not 100% tested. See “EEPROM write time” in the AC Electrical Characteristics for

definition of the programming ready time.

Parameter

Conditions

MIN

TYP

MAX

Units

Instruction cycle time from internal clock -

setpoint

3.3V at +25°C

0.98

1.0

1.02

µs

Internal clock frequency variation

1.8V to 3.6V at constant temperature

1.2

%

1.8V to 3.6V at full temperature range (Note 6)

6

%

Crystal oscillator frequency

(Note 5)

25

MHz

External clock frequency

(Note 5)

8

MHz

EEPROM write time

5.5

10

ms

Internal clock start up time

(Note 6)

2

ms

Oscillator start up time

(Note 6)

2400

cycles

Parameter

Description

MIN

MAX

Units

CLOCK high time

500

DC

ns

CLOCK low time

500

DC

ns

SHIFT_IN setup time

100

ns

SHIFT_IN hold time

100

ns

SHIFT_OUT setup time

100

ns

SHIFT_OUT hold time

900

ns

Power On Reset time

3.2

4.5

ms

LOAD timing

5

µs

Parameter

Conditions

MIN

TYP

MAX

Units

LBD voltage threshold variation

-40°C to +85°C

-5

+5

%

Parameter

Conditions

MIN

TYP

MAX

Units

BOR voltage threshold variation

-40°C to +85°C

1.72

1.83

1.92

V