Philips Semiconductors

Product specification

80C528/83C528

CMOS single-chip 8-bit microcontrollers

1995 Feb 02

14

16MHz CLOCK

VARIABLE CLOCK

SYMBOL

FIGURE

PARAMETER

MIN

MAX

MIN

MAX

UNIT

1

Oscillator frequency

1.2

16

MHz

1

ALE pulse width

85

ns

1

Address valid to ALE low

8

ns

1

Address hold after ALE low

28

ns

1

ALE low to valid instruction in

150

ns

1

ALE low to PSEN low

23

ns

1

PSEN pulse width

143

ns

1

PSEN low to valid instruction in

83

ns

1

Input instruction hold after PSEN

0

0

ns

1

Input instruction float after PSEN

38

ns

1

Address to valid instruction in

208

ns

1

PSEN low to address float

10

10

ns

Data Memory

2, 3

RD pulse width

275

ns

2, 3

WR pulse width

275

ns

2, 3

RD low to valid data in

148

ns

2, 3

Data hold after RD

0

0

ns

2, 3

Data float after RD

55

ns

2, 3

ALE low to valid data in

350

ns

2, 3

Address to valid data in

398

ns

2, 3

ALE low to RD or WR low

138

238

ns

2, 3

Address valid to WR low or RD low

120

ns

2, 3

Data valid to WR transition

3

ns

2, 3

Data hold after WR

13

ns

2, 3

RD low to address float

0

0

ns

2, 3

RD or WR high to ALE high

23

103

ns

External Clock

6

High time

20

20

ns

6

Low time

20

20

ns

6

Rise time

20

20

ns

6

Fall time

20

20

ns

Shift Register

4

Serial port clock cycle time

750

ns

4

Output data setup to clock rising edge

492

ns

4

Output data hold after clock rising edge

8

ns

4

Input data hold after clock rising edge

0

0

ns

4

Clock rising edge to input data valid

492

ns

NOTES:

1. Parameters are valid over operating temperature range unless otherwise specified.

2. Load capacitance for port 0, ALE, and PSEN = 100pF, load capacitance for all other outputs = 80pF.