
Philips Semiconductors
Product specification
80C550/83C550/87C550
80C51 8-bit microcontroller family
4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer
1998 May 01
21
V
CC
P0
EA
RST
XTAL1
XTAL2
V
SS
V
CC
V
CC
V
CC
I
CC
(NC)
CLOCK SIGNAL
P1
SU00202
Figure 13. I
CC
Test Condition, Active Mode
All other pins are disconnected
V
CC
P0
EA
RST
XTAL1
XTAL2
V
SS
V
CC
V
CC
I
CC
(NC)
CLOCK SIGNAL
P1
SU00203
Figure 14. I
CC
Test Condition, Idle Mode
All other pins are disconnected
V
CC
–0.5
0.45V
0.7V
CC
0.2V
CC
–0.1
t
CHCL
t
CLCL
t
CLCH
t
CLCX
t
CHCX
SU00009
Figure 15. Clock Signal Waveform for I
CC
Tests in Active and Idle Modes
t
CLCH
= t
CHCL
= 5ns
V
CC
P0
EA
RST
XTAL1
XTAL2
V
SS
V
CC
V
CC
I
CC
(NC)
P1
SU00204
Figure 16. I
CC
Test Condition, Power Down Mode
All other pins are disconnected.
V
CC
= 2V to 5.5V.