INTEGRATED CIRCUITS
80C31/80C32
80C51 8-bit microcontroller family
128/256 byte RAM ROMless low voltage (2.7 V–5.5 V),
low power, high speed (33 MHz)
Product specification
IC28 Data Handbook
2000 Aug 07
Philips
Semiconductors
Philips Semiconductors
Product specification
80C51 8-bit microcontroller family
128/256 byte RAM ROMless low voltage (2.7V–5.5V),
low power, high speed (33 MHz)
80C31/80C32
DESCRIPTION
The Philips 80C31/32 is a high-performance static 80C51 design
fabricated with Philips high-density CMOS technology with operation
from 2.7 V to 5.5 V.
The 80C31/32 ROMless devices contain a 128
×
8 RAM/256
×
8
RAM, 32 I/O lines, three 16-bit counter/timers, a six-source,
four-priority level nested interrupt structure, a serial I/O port for
either multi-processor communications, I/O expansion or full duplex
UART, and on-chip oscillator and clock circuits.
In addition, the device is a low power static design which offers a
wide range of operating frequencies down to zero. Two software
selectable modes of power reduction—idle mode and power-down
mode are available. The idle mode freezes the CPU while allowing
the RAM, timers, serial port, and interrupt system to continue
functioning. The power-down mode saves the RAM contents but
freezes the oscillator, causing all other chip functions to be
inoperative. Since the design is static, the clock can be stopped
without loss of user data and then the execution resumed from the
point the clock was stopped.
FEATURES
•
8051 Central Processing Unit
–
128
×
8 RAM (80C31)
–
256
×
8 RAM (80C32)
–
Three 16-bit counter/timers
–
Boolean processor
–
Full static operation
–
Low voltage (2.7 V to 5.5 V@ 16 MHz) operation
•
Memory addressing capability
–
64k ROM and 64k RAM
•
Power control modes:
–
Clock can be stopped and resumed
–
Idle mode
–
Power-down mode
•
CMOS and TTL compatible
•
TWO speed ranges at V
CC
= 5 V
–
0 to 16 MHz
–
0 to 33 MHz
SELECTION TABLE
For applications requiring more ROM and RAM, see the 8XC54/58
and 8XC51RA+/RB+/RC+/80C51RA+ data sheet.
ROM/EPROM
Memory Size
(X by 8)
80C31/8XC51
0K/4K
80C32/8XC52/54/58
0K/8K/16K/32K
256
No
No
128
No
No
RAM Size
(X by 8)
Programmable
Timer Counter
(PCA)
Hardware
Watch Dog
Timer
•
Three package styles
•
Extended temperature ranges
•
Dual Data Pointers
•
4 level priority interrupt
•
6 interrupt sources
•
Four 8-bit I/O ports
•
Full–duplex enhanced UART
–
Framing error detection
–
Automatic address recognition
80C51RA+/8XC51RA+/RB+/RC+
0K/8K/16K/32K
8XC51RD+
64K
1024
Yes
Yes
512
Yes
Yes
•
Programmable clock out
•
Asynchronous port reset
•
Low EMI (inhibit ALE)
•
Wake-up from Power Down by an external interrupt
2000 Aug 07
2
853–2213 24293
Philips Semiconductors
Product specification
80C51 8-bit microcontroller family
128/256 byte RAM ROMless low voltage (2.7V–5.5V),
low power, high speed (33 MHz)
80C31/80C32
80C51/87C51 AND 80C31 ORDERING INFORMATION
ROMless
P80C31SBPN
P80C31SBAA
P80C31SBBB
P80C31SFP N
P80C31SFA A
P80C31SFB B
TEMPERATURE RANGE
°C
AND PACKAGE
0 to +70 Plastic Dual In line Package
+70,
In-line
0 to +70, Plastic Leaded Chip Carrier
+70
0 to +70 Plastic Quad Flat Pack
+70,
–40 to +85 Plastic Dual In line Package
40 +85,
In-line
–40 to +85, Plastic Leaded Chip Carrier
40 +85
–40 to +85 Plastic Quad Flat Pack
40 +85,
VOLTAGE
RANGE
2 7 V to 5.5 V
55
2.7
2 7 V to 5.5 V
55
2.7
2 7 V to 5.5 V
55
2.7
2.7
2 7 V to 5.5 V
55
2.7
2 7 V to 5.5 V
55
2.7
2 7 V to 5.5 V
55
FREQ.
(MHz)
0 to 16
0 to 16
0 to 16
0 to 16
0 to 16
0 to 16
DRAWING
NUMBER
SOT129 1
SOT129-1
SOT187 2
SOT187-2
SOT307 2
SOT307-2
SOT129-1
SOT129 1
SOT187-2
SOT187 2
SOT307-2
SOT307 2
PART NUMBER DERIVATION
DEVICE NUMBER
P80C31
P80C32
OPERATING FREQUENCY, MAX (S)
S = 16 MHz
U = 33 MHz
TEMPERATURE RANGE (B)
B = 0_ to +70_C
F = –40_C to +85_C
PACKAGE (AA)
AA = PLCC
BB = PQFP
PN = PDIP
80C32 ORDERING INFORMATION
ROMless
P80C32SBP N
P80C32SBA A
P80C32SBB B
P80C32SFP N
P80C32SFA A
P80C32SFB B
P80C32UBA A
P80C32UBP N
P80C32UBB B
P80C32UFA A
P80C32UFP N
P80C32UFB B
TEMPERATURE RANGE
°C
AND PACKAGE
0 to +70, Plastic Dual In-line Package
0 to +70, Plastic Leaded Chip Carrier
0 to +70, Plastic Quad Flat Pack
–40 to +85, Plastic Dual In-line Package
–40 to +85, Plastic Leaded Chip Carrier
–40 to +85, Plastic Quad Flat Pack
0 to +70, Plastic Leaded Chip Carrier
0 to +70, Plastic Dual In-line Package
0 to +70, Plastic Quad Flat Pack
–40 to +85, Plastic Leaded Chip Carrier
–40 to +85, Plastic Dual In-line Package
–40 to +85, Plastic Quad Flat Pack
FREQ
MHz
16
16
16
16
16
16
33
33
33
33
33
33
DRAWING
NUMBER
SOT129-1
SOT187-2
SOT307-2
SOT129-1
SOT187-2
SOT307-2
SOT187-2
SOT129-1
SOT307-2
SOT187-2
SOT129-1
SOT307-2
2000 Aug 07
3
Philips Semiconductors
Product specification
80C51 8-bit microcontroller family
128/256 byte RAM ROMless low voltage (2.7V–5.5V),
low power, high speed (33 MHz)
80C31/80C32
BLOCK DIAGRAM
P0.0–P0.7
P2.0–P2.7
PORT 0
DRIVERS
V
CC
V
SS
RAM ADDR
REGISTER
RAM
PORT 0
LATCH
PORT 2
DRIVERS
PORT 2
LATCH
ROM/EPROM
8
B
REGISTER
STACK
POINTER
ACC
TMP2
TMP1
PROGRAM
ADDRESS
REGISTER
ALU
SFRs
PSW
TIMERS
BUFFER
PC
INCRE-
MENTER
8
PROGRAM
COUNTER
16
PSEN
ALE/PROG
EAV
PP
RST
PD
TIMING
AND
CONTROL
INSTRUCTION
REGISTER
DPTR’S
MULTIPLE
PORT 1
LATCH
PORT 3
LATCH
OSCILLATOR
PORT 1
DRIVERS
XTAL1
XTAL2
P1.0–P1.7
PORT 3
DRIVERS
P3.0–P3.7
SU00845
2000 Aug 07
4
Philips Semiconductors
Product specification
80C51 8-bit microcontroller family
128/256 byte RAM ROMless low voltage (2.7V–5.5V),
low power, high speed (33 MHz)
80C31/80C32
LOGIC SYMBOL
V
CC
XTAL1
PORT 0
ADDRESS AND
DATA BUS
V
SS
PLASTIC LEADED CHIP CARRIER PIN FUNCTIONS
6
1
40
7
39
LCC
XTAL2
T2
T2EX
RST
EA/V
PP
PSEN
SECONDARY FUNCTIONS
ALE/PROG
RxD
TxD
INT0
INT1
T0
T1
WR
RD
PORT 1
17
29
18
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Function
NIC*
P1.0/T2
P1.1/T2EX
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RST
P3.0/RxD
NIC*
P3.1/TxD
P3.2/INT0
P3.3/INT1
Pin
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Function
P3.4/T0
P3.5/T1
P3.6/WR
P3.7/RD
XTAL2
XTAL1
V
SS
NIC*
P2.0/A8
P2.1/A9
P2.2/A10
P2.3/A11
P2.4/A12
P2.5/A13
P2.6/A14
28
Pin
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Function
P2.7/A15
PSEN
ALE
NIC*
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
V
CC
PORT 3
PORT 2
ADDRESS BUS
SU00830
PIN CONFIGURATIONS
T2/P1.0 1
T2EX/P1.1 2
P1.2 3
P1.3 4
P1.4 5
P1.5 6
P1.6 7
P1.7 8
RST 9
RxD/P3.0 10
TxD/P3.1 11
INT0/P3.2 12
INT1/P3.3 13
T0/P3.4 14
T1/P3.5 15
WR/P3.6 16
RD/P3.7 17
XTAL2 18
XTAL1 19
V
SS
20
DUAL
IN-LINE
PACKAGE
40 V
CC
39 P0.0/AD0
38 P0.1/AD1
* NO INTERNAL CONNECTION
SU01062
PLASTIC QUAD FLAT PACK
PIN FUNCTIONS
44
34
37 P0.2/AD2
36 P0.3/AD3
1
35 P0.4/AD4
34 P0.5/AD5
33 P0.6/AD6
32 P0.7/AD7
31 EA/V
PP
30 ALE
29 PSEN
28 P2.7/A15
27 P2.6/A14
26 P2.5/A13
25 P2.4/A12
24 P2.3/A11
23 P2.2/A10
22 P2.1/A9
21 P2.0/A8
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Function
P1.5
P1.6
P1.7
RST
P3.0/RxD
NIC*
P3.1/TxD
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
P3.6/WR
P3.7/RD
XTAL2
XTAL1
12
Pin
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Function
V
SS
NIC*
P2.0/A8
P2.1/A9
P2.2/A10
P2.3/A11
P2.4/A12
P2.5/A13
P2.6/A14
P2.7/A15
PSEN
ALE
NIC*
EA/V
PP
P0.7/AD7
22
Pin
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Function
P0.6/AD6
P0.5/AD5
P0.4/AD4
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
V
CC
NIC*
P1.0/T2
P1.1/T2EX
P1.2
P1.3
P1.4
11
23
PQFP
33
SU01063
* NO INTERNAL CONNECTION
SU01064
2000 Aug 07
5
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