P87C554 NXP Semiconductors, P87C554 Datasheet - Page 73

• Manufacturer Part Number: P87C554
• Description: The P87C554 Single-Chip 8-Bit Microcontroller is manufactured inan advanced CMOS process and is a derivative of the 80C51microcontroller family
• Manufacturer: NXP Semiconductors

2. Idle Mode:
3. Power Down Mode:
Philips Semiconductors
2002 Mar 25
80C51 8-bit microcontroller – 12 clock operation
16K/512 OTP/RAM, 8 channel 10-bit A/D, I
capture/compare, high I/O
a. The following pins must be forced to V
b. The following pins must be forced to V
c. Ports 1.6 and 1.7 should be connected to V
d. The following pins must be disconnected: XTAL2 and all pins not specified above.
a. The following pins must be forced to V
b. The following pins must be forced to V
c. Ports 1.6 and 1.7 should be connected to V
d. The following pins must be disconnected: XTAL2 and all pins not specified above.
cannot exceed the I
cannot exceed the I
OL1
OL1
spec of these pins. These pins must not have logic 0 written to them prior to this measurement.
spec of these pins. These pins must not have logic 0 written to them prior to this measurement.
Figure 60. Clock Signal Waveform for I
CLOCK SIGNAL
V
DD
0.5V
–0.5
All other pins are disconnected. V
DD
SS
DD
SS
Figure 61. I
V
: RST, STADC, AV
: RST, STADC, XTAL1, AV
: Port 0 and EW.
: Port 0 and EW.
V
DD
(NC)
DD
(NC)
DD
DD
Figure 59. I
through resistors of sufficiently high value such that the sink current into these pins
through resistors of sufficiently high value such that the sink current into these pins
All other pins are disconnected
0.2V
t
CHCL
0.7V
DD
DD
Test Condition, Power Down Mode
DD
t
2
–0.1
P1.6
P1.7
RST
XTAL2
XTAL1
V
CLCH
P1.6
P1.7
RST
STADC
XTAL2
XTAL1
V
STADC
DD
C, PWM,
SS
SS
Test Condition, Idle Mode
ss
= t
, AV
CHCL
71
t
CLCX
ref–
ss
DD
, and EA.
= 5ns
, AV
t
Tests in Active and Idle Modes
CLCL
AV
AV
AV
AV
ref–
V
V
DD
ref–
ref–
DD
DD
EW
EW
EA
SS
EA
SS
P0
P0
t
, and EA.
CHCX
= 2 V to 5.5 V
t
CLCH
2
I
I
DD
DD
V
V
V
V
SU00220
DD
DD
DD
DD
SU00221
SU00219
3
P87C554
Product data