INTEGRATED CIRCUITS
P87C554
80C51 8-bit microcontroller – 12 clock operation
16K/512 OTP/RAM 8 channel 10-bit A/D, I
2
C, PWM,
capture/compare, high I/O
Product data
Supersedes data of 1998 Aug 14
2002 Mar 25
Philips
Semiconductors
Philips Semiconductors
Product data
80C51 8-bit microcontroller – 12 clock operation
16K/512 OTP/RAM, 8 channel 10-bit A/D, I
2
C, PWM,
capture/compare, high I/O
P87C554
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ORDERING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PART NUMBER DERIVATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PINNING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Plastic Leaded Chip Carrier pin functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LOGIC SYMBOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PIN DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL FUNCTION REGISTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OSCILLATOR CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LOW POWER MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stop Clock Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Idle Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power-Down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
POWER OFF FLAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Design Consideration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ONCEE Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reduced EMI Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expanded Data RAM Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual DPTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DPTR Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enhanced UART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Address Recognition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timer T2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timer T3, The Watchdog Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Port 5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pulse Width Modulated Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog-to-Digital Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Reduction Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DEVICE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EXPLANATION OF THE AC SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EPROM CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Program Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REVISION HISTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
1
2
2
2
3
3
3
4
6
8
8
8
8
8
8
9
9
9
9
10
11
11
13
13
15
20
21
21
21
21
26
28
61
61
62
65
67
72
72
72
74
2002 Mar 25
i
Philips Semiconductors
Product data
80C51 8-bit microcontroller – 12 clock operation
16K/512 OTP/RAM, 8 channel 10-bit A/D, I
2
C, PWM,
capture/compare, high I/O
P87C554
DESCRIPTION
The P87C554 Single-Chip 8-Bit Microcontroller is manufactured in
an advanced CMOS process and is a derivative of the 80C51
microcontroller family. The 87C554 has the same instruction set as
the 80C51.
The 87C554 contains a 16k
×
8 non-volatile EPROM, a 512
×
8
read/write data memory, five 8-bit I/O ports, one 8-bit input port, two
16-bit timer/event counters (identical to the timers of the 80C51), an
additional 16-bit timer coupled to capture and compare latches, a
15-source, four-priority-level, nested interrupt structure, an 8-input
ADC, a dual DAC pulse width modulated interface, two serial
interfaces (UART and I
2
C-bus), a “watchdog” timer and on-chip
oscillator and timing circuits. For systems that require extra
capability, the P87C554 can be expanded using standard TTL
compatible memories and logic.
In addition, the P87C554 has two software selectable modes of
power reduction—idle mode and power-down mode. The idle mode
freezes the CPU while allowing the RAM, timers, serial ports, and
interrupt system to continue functioning. Optionally, the ADC can be
operated in Idle mode. The power-down mode saves the RAM
contents but freezes the oscillator, causing all other chip functions to
be inoperative.
The device also functions as an arithmetic processor having
facilities for both binary and BCD arithmetic plus bit-handling
capabilities. The instruction set consists of over 100 instructions:
49 one-byte, 45 two-byte, and 17 three-byte. With a 16 MHz crystal,
58% of the instructions are executed in 0.75
µs
and 40% in 1.5
µs.
Multiply and divide instructions require 3
µs.
•
80C51 central processing unit
•
16k
×
8 EPROM expandable externally to 64k bytes
•
An additional 16-bit timer/counter coupled to four capture registers
and three compare registers
FEATURES
•
Two standard 16-bit timer/counters
•
512
×
8 RAM, expandable externally to 64k bytes
•
Capable of producing eight synchronized, timed outputs
•
A 10-bit ADC with eight multiplexed analog inputs
•
Fast 8-bit ADC option
•
Two 8-bit resolution, pulse width modulation outputs
•
Five 8-bit I/O ports plus one 8-bit input port shared with analog
inputs
•
I
2
C-bus serial I/O port with byte oriented master and slave
functions
•
On-chip watchdog timer
•
Extended temperature ranges
•
Full static operation – 0 to 16 MHz
•
Operating voltage range: 2.7 V to 5.5 V (0 to 16 MHz) and
4.5 V to 5.5 V (16 to 33 MHz)
•
Three security bits
•
Encryption array – 64 bytes
•
4 level priority interrupt
•
15 interrupt sources
•
Full-duplex enhanced UART
– Framing error detection
– Automatic address recognition
•
Power control modes
– Clock can be stopped and resumed
– Idle mode
– Power down mode
•
Second DPTR register
•
ALE inhibit for EMI reduction
•
Programmable I/O pins
•
Wake-up from power-down by external interrupts
•
Software reset
•
Power-on detect reset
•
ADC charge pump disable
•
ONCE mode
•
ADC active in Idle mode
2002 Mar 25
1
853-2324 27926
Philips Semiconductors
Product data
80C51 8-bit microcontroller – 12 clock operation
16K/512 OTP/RAM, 8 channel 10-bit A/D, I
2
C, PWM,
capture/compare, high I/O
P87C554
ORDERING INFORMATION
OTP/EPROM
P87C554SBAA
P87C554SFAA
TEMPERATURE
°C
AND PACKAGE
0 to +70, Plastic Leaded Chip Carrier
–40 to +85, Plastic Leaded Chip Carrier
FREQ.
(MHz)
16
16
DRAWING NUMBER
SOT188–3
SOT188–3
PART NUMBER DERIVATION
DEVICE NUMBER (P87C554)
P87C554 OTP
OPERATING FREQUENCY MAX (S)
S = 16 MHz
TEMPERATURE RANGE (B)
B= 0
_C
to 70
_C
F = –40
_C
to +85
_C
PACKAGE (AA)
AA = PLCC
BLOCK DIAGRAM
T0
3
T1
3
INT0
3
INT1
3
V
DD
V
SS
PWM0
PWM1
AV
SS
AV
DD
AV
REF
ADC0-7 SDA
SCL
1
1
– +
STADC
5
XTAL1
XTAL2
EA
ALE
PSEN
3
3
RD
0
AD0-7
2
A8-15
PARALLEL I/O
PORTS AND
EXTERNAL BUS
SERIAL
UART
PORT
8-BIT
PORT
FOUR
16-BIT
CAPTURE
LATCHES
16
WR
T0, T1
TWO 16-BIT
TIMER/EVENT
COUNTERS
PROGRAM
MEMORY
16k x 8
OTP/ROM
DATA
MEMORY
512 x 8 RAM
DUAL
PWM
ADC
SERIAL
I
2
C PORT
CPU
80C51 CORE
EXCLUDING
ROM/RAM
8-BIT INTERNAL BUS
T2
16-BIT
TIMER/
EVENT
COUNTERS
16
T2
16-BIT
COMPARA-
TORS
WITH
REGISTERS
COMPARA-
TOR
OUTPUT
SELECTION
T3
WATCHDOG
TIMER
3
P0
P1
P2
P3
TxD
3
RxD
P5
P4
CT0I-CT3I
1
1
T2
RT2
1
4
CMSR0-CMSR5
CMT0, CMT1
RST
EW
0
1
2
ALTERNATE FUNCTION OF PORT 0
ALTERNATE FUNCTION OF PORT 1
ALTERNATE FUNCTION OF PORT 2
3
4
5
ALTERNATE FUNCTION OF PORT 3
ALTERNATE FUNCTION OF PORT 4
ALTERNATE FUNCTION OF PORT 5
SU00951
2002 Mar 25
2
Philips Semiconductors
Product data
80C51 8-bit microcontroller – 12 clock operation
16K/512 OTP/RAM, 8 channel 10-bit A/D, I
2
C, PWM,
capture/compare, high I/O
P87C554
PINNING INFORMATION
Plastic Leaded Chip Carrier pin functions
9
10
PLASTIC
LEADED
CHIP CARRIER
1
61
60
LOGIC SYMBOL
V
SS
V
DD
XTAL1
XTAL2
EA/V
PP
ALE/PROG
PSEN
AV
SS
AV
DD
AVref+
AVref–
STADC
PWM0
PWM1
PORT 0
LOW ORDER
ADDRESS AND
DATA BUS
26
27
43
44
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Function
P5.0/ADC0
V
DD
STADC
PWM0
PWM1
EW
P4.0/CMSR0
P4.1/CMSR1
P4.2/CMSR2
P4.3/CMSR3
P4.4/CMSR4
P4.5/CMSR5
P4.6/CMT0
P4.7/CMT1
RST
P1.0/CT0I
P1.1/CT1I
P1.2/CT2I
P1.3/CT3I
P1.4/T2
P1.5/RT2
P1.6/SCL
P1.7/SDA
Pin
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
Function
P3.0/RxD
P3.1/TxD
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
P3.6/WR
P3.7/RD
NC
NC
XTAL2
XTAL1
V
SS
V
SS
NC
P2.0/A08
P2.1/A09
P2.2/A10
P2.3/A11
P2.4/A12
P2.5/A13
P2.6/A14
P2.7/A15
Pin
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
Function
PSEN
ALE/PROG
EA/V
PP
P0.7/AD7
P0.6/AD6
P0.5/AD5
P0.4/AD4
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
AVref–
AVref+
AV
SS
AV
DD
P5.7/ADC7
P5.6/ADC6
P5.5/ADC5
P5.4/ADC4
P5.3/ADC3
P5.2/ADC2
P5.1/ADC1
ADC0-7
PORT 5
CT0I
CT1I
CT2I
CT3I
T2
RT2
SCL
SDA
PORT 2
PORT 1
HIGH ORDER
ADDRESS AND
DATA BUS
CMSR0-5
PORT 4
RxD/DATA
TxD/CLOCK
INT0
INT1
T0
T1
WR
RD
CMT0
CMT1
RST
EW
PORT 3
SU00210
SU00208
2002 Mar 25
3
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