p89c538nbb NXP Semiconductors, p89c538nbb Datasheet - Page 20

• Manufacturer Part Number: p89c538nbb
• Description: Cmos Single-chip 8-bit Microcontrollers With Flash Program Memory
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1998 Apr 24
NOTE:
AC inputs during testing are driven at V
Timing measurements are made at V
80C51 8-bit microcontroller family
16K/64K/512 FLASH
V
CC
0.45V
–0.5
Figure 14.
Figure 16.
0.2V
0.2V
AC Testing Input/Output
IH
CC
CC
CC
min for a logic ‘1’ and V
+0.9
–0.1
–0.5 for a logic ‘1’ and 0.45V for a logic ‘0’.
I
CC
90.00
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
vs. FREQ Valid only within frequency specifications of the device under test
0
IL
4
max for a logic ‘0’.
8
SU00717
12
FREQ AT XTAL1 (MHz)
MAX ACTIVE MODE
16
20
TYP ACTIVE MODE
20
NOTE:
For timing purposes, a port is no longer floating when a 100mV change from
load voltage occurs, and begins to float when a 100mV change from the loaded
V
MAX IDLE MODE
V
OH
LOAD
24
TYP IDLE MODE
/V
OL
level occurs. I
28
V
V
LOAD
LOAD
32
–0.1V
+0.1V
SU00886
Figure 15.
OH
/I
36
OL
20mA.
Float Waveform
REFERENCE
89C536/89C538
TIMING
POINTS
Preliminary specification
V
V
OH
OL
SU00718
+0.1V
–0.1V