87C654 Philips Semiconductors, 87C654 Datasheet - Page 19

• Manufacturer Part Number: 87C654
• Description: 80C51 8-bit microcontroller 8K/16K/ 256 OTP/ I2C
• Manufacturer: Philips Semiconductors

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Philips Semiconductors
NOTE:
1996 Aug 16
CMOS single-chip 8-bit microcontroller
Ports 1.6 and 1.7 should be connected to V
exceed the I
OL1
specification.
Figure 10. Clock Signal Waveform for I
CLOCK SIGNAL
V
CC
0.45V
Figure 11. I
All other pins are disconnected. V
–0.5
(NC)
CC
(NC)
through resistors of sufficiently high value such that the sink current into these pins does not
Figure 9. I
All other pins are disconnected
0.2V
t
CC
CHCL
0.7V
RST
EA
XTAL2
XTAL1
V
RST
XTAL2
XTAL1
V
EA
t
SS
CC
Test Condition, Power Down Mode
SS
CLCH
CC
CC
–0.1
Test Condition, Idle Mode
= t
87C654
87C654
CHCL
19
t
CLCX
CC
= 10ns
V
P1.6
P1.7
Tests in Active and Idle Modes
V
P1.6
P1.7
CC
t
CLCL
P0
CC
P0
CC
t
CHCX
I
= 2V to 5.5V
CC
t
I
CLCH
CC
V
V
V
V
CC
CC
CC
CC
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Product specification
87C654
SU00273
SU00274
SU00009