DS5000(T)

021998 15/19

AC CHARACTERISTICS (cont’d)

PARALLEL PROGRAM LOAD TIMING

#

PARAMETER

SYMBOL

MIN

MAX

UNITS

40

Oscillator Frequency

1.0

12.0

MHz

41

Address Setup to PROG Low

0

42

Address Hold after PROG High

0

43

Data Setup to PROG Low

0

44

Data Hold after PROG High

0

45

0

46

0

47

0

48

PROG Width Low

2400

49

Data Output from Address Valid

48

1800*

50

Data Output from P2.7 Low

48

1800*

51

Data Float after P2.7 High

0

48

1800*

52

Delay to Reset/PSEN Active after

Power–On

21504

53

Reset/PSEN Active (or Verify Inactive) to

1200

54

1200

55

Verify Active Time

48

2400*

* Second set of numbers refers to expanded memory programming up to 32K bytes.