Philips
Semiconductors
80C51/87C51/80C52/87C52
80C51 8-bit microcontroller family
4 K/8 K OTP/ROM low voltage (2.7 V5.5 V), low
power, high speed (33 MHz), 128/256 B RAM
Product specification
Replaces datasheet 80C51/87C51/80C31 of 2000 Jan 20
2000 Aug 07
INTEGRATED CIRCUITS
Philips Semiconductors
Product specification
80C51/87C51/80C52/87C52
80C51 8-bit microcontroller family
4 K/8 K OTP/ROM low voltage (2.7 V5.5 V),
low power, high speed (33 MHz), 128/256 B RAM
2
2000 Aug 07
8530169 24291
DESCRIPTION
The Philips 80C51/87C51/80C52/87C52 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 8xC51 and 8xC52 contain a 128
8 RAM and 256
8 RAM
respectively, 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.
SELECTION TABLE
For applications requiring more ROM and RAM, see the 8XC54/58
and 8XC51RA+/RB+/RC+/80C51RA+ data sheet.
Note: 80C31/80C32 is specified in separate data sheet.
ROM/EPROM
Memory Size
(X by 8)
RAM Size
(X by 8)
Programmable
Timer Counter
(PCA)
Hardware
Watch Dog
Timer
80C31*/80C51/87C51
0K/4K
128
No
No
80C32*/80C52/87C52
0K/8K/16K/32K
256
No
No
80C51RA+/8XC51RA+/RB+/RC+
0K/8K/16K/32K
512
Yes
Yes
8XC51RD+
64K
1024
Yes
Yes
FEATURES
8051 Central Processing Unit
4k
8 ROM (80C51)
8k
8 ROM (80C52)
128
8 RAM (80C51)
256
8 RAM (80C52)
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
Three package styles
Extended temperature ranges
Dual Data Pointers
Security bits:
ROM (2 bits)
OTP/EPROM (3 bits)
Encryption array 64 bytes
4 level priority interrupt
6 interrupt sources
Four 8-bit I/O ports
Fullduplex enhanced UART
Framing error detection
Automatic address recognition
Programmable clock out
Asynchronous port reset
Low EMI (inhibit ALE and slew rate controlled outputs)
Wake-up from Power Down by an external interrupt
Philips Semiconductors
Product specification
80C51/87C51/80C52/87C52
80C51 8-bit microcontroller family
4 K/8 K OTP/ROM low voltage (2.7 V5.5 V),
low power, high speed (33 MHz), 128/256 B RAM
2000 Aug 07
3
80C51/87C51 ORDERING INFORMATION
MEMORY SIZE
4K
8
TEMPERATURE RANGE
C
AND PACKAGE
VOLTAGE
RANGE
FREQ.
(MHz)
DWG. #
ROM
P80C51SBPN
0 to +70 Plastic Dual In line Package
2 7 V to 5 5 V
0 to 16
SOT129 1
OTP
P87C51SBPN
0 to +70, Plastic Dual In-line Package
2.7 V to 5.5 V
0 to 16
SOT129-1
ROM
P80C51SBAA
0 to +70 Plastic Leaded Chip Carrier
2 7 V to 5 5 V
0 to 16
SOT187 2
OTP
P87C51SBAA
0 to +70, Plastic Leaded Chip Carrier
2.7 V to 5.5 V
0 to 16
SOT187-2
ROM
P80C51SBBB
0 to +70 Plastic Quad Flat Pack
2 7 V to 5 5 V
0 to 16
SOT307 2
OTP
P87C51SBBB
0 to +70, Plastic Quad Flat Pack
2.7 V to 5.5 V
0 to 16
SOT307-2
ROM
P80C51SFP N
40 to +85 Plastic Dual In line Package
2 7 V to 5 5 V
0 to 16
SOT129 1
OTP
P87C51SFP N
40 to +85, Plastic Dual In-line Package
2.7 V to 5.5 V
0 to 16
SOT129-1
ROM
P80C51SFA A
40 to +85 Plastic Leaded Chip Carrier
2 7 V to 5 5 V
0 to 16
SOT187 2
OTP
P87C51SFA A
40 to +85, Plastic Leaded Chip Carrier
2.7 V to 5.5 V
0 to 16
SOT187-2
ROM
P80C51SFB B
40 to +85 Plastic Quad Flat Pack
2 7 V to 5 5 V
0 to 16
SOT307 2
OTP
P87C51SFB B
40 to +85, Plastic Quad Flat Pack
2.7 V to 5.5 V
0 to 16
SOT307-2
ROM
P80C51UBAA
0 to +70 Plastic Leaded Chip Carrier
5 V
0 to 33
SOT187 2
OTP
P87C51UBAA
0 to +70, Plastic Leaded Chip Carrier
5 V
0 to 33
SOT187-2
ROM
P80C51UBPN
0 to +70 Plastic Dual In line Package
5 V
0 to 33
SOT129 1
OTP
P87C51UBPN
0 to +70, Plastic Dual In-line Package
5 V
0 to 33
SOT129-1
ROM
P80C51UFA A
40 to +85 Plastic Leaded Chip Carrier
5 V
0 to 33
SOT187 2
OTP
P87C51UFA A
40 to +85, Plastic Leaded Chip Carrier
5 V
0 to 33
SOT187-2
PART NUMBER DERIVATION
DEVICE
NUMBER
DEVICE
NUMBER
OPERATING FREQUENCY, MAX (S)
TEMPERATURE RANGE (B)
PACKAGE (AA)
ROM
P80C51
S = 16 MHz
B = 0
_
to +70
_
C
AA = PLCC
ROM
P80C52
S = 16 MHz
B = 0
_
to +70
_
C
AA = PLCC
OTP
P87C51
U = 33 MHz
F = 40
_
C to +85
_
C
BB = PQFP
OTP
P87C52
U = 33 MHz
F = 40
_
C to +85
_
C
BB = PQFP
Philips Semiconductors
Product specification
80C51/87C51/80C52/87C52
80C51 8-bit microcontroller family
4 K/8 K OTP/ROM low voltage (2.7 V5.5 V),
low power, high speed (33 MHz), 128/256 B RAM
2000 Aug 07
4
80C52/87C52 ORDERING INFORMATION
MEMORY SIZE
8K
8
TEMPERATURE RANGE
C
AND PACKAGE
VOLTAGE
RANGE
FREQ.
(MHz)
DWG. #
ROM
P80C52SBPN
0 to +70 Plastic Dual In line Package
2 7 V to 5 5 V
0 to 16
SOT129 1
OTP
P87C52SBPN
0 to +70, Plastic Dual In-line Package
2.7 V to 5.5 V
0 to 16
SOT129-1
ROM
P80C52SBAA
0 to +70 Plastic Leaded Chip Carrier
2 7 V to 5 5 V
0 to 16
SOT187 2
OTP
P87C52SBAA
0 to +70, Plastic Leaded Chip Carrier
2.7 V to 5.5 V
0 to 16
SOT187-2
ROM
P80C52SBBB
0 to +70 Plastic Quad Flat Pack
2 7 V to 5 5 V
0 to 16
SOT307 2
OTP
P87C52SBBB
0 to +70, Plastic Quad Flat Pack
2.7 V to 5.5 V
0 to 16
SOT307-2
ROM
P80C52SFP N
40 to +85 Plastic Dual In line Package
2 7 V to 5 5 V
0 to 16
SOT129 1
OTP
P87C52SFP N
40 to +85, Plastic Dual In-line Package
2.7 V to 5.5 V
0 to 16
SOT129-1
ROM
P80C52SFA A
40 to +85 Plastic Leaded Chip Carrier
2 7 V to 5 5 V
0 to 16
SOT187 2
OTP
P87C52SFA A
40 to +85, Plastic Leaded Chip Carrier
2.7 V to 5.5 V
0 to 16
SOT187-2
ROM
P80C52SFB B
40 to +85 Plastic Quad Flat Pack
2 7 V to 5 5 V
0 to 16
SOT307 2
OTP
P87C52SFB B
40 to +85, Plastic Quad Flat Pack
2.7 V to 5.5 V
0 to 16
SOT307-2
ROM
P80C52UBAA
0 to +70 Plastic Leaded Chip Carrier
5 V
0 to 33
SOT187 2
OTP
P87C52UBAA
0 to +70, Plastic Leaded Chip Carrier
5 V
0 to 33
SOT187-2
ROM
P80C52UBPN
0 to +70 Plastic Dual In line Package
5 V
0 to 33
SOT129 1
OTP
P87C52UBPN
0 to +70, Plastic Dual In-line Package
5 V
0 to 33
SOT129-1
ROM
P80C52UFA A
40 to +85 Plastic Leaded Chip Carrier
5 V
0 to 33
SOT187 2
OTP
P87C52UFA A
40 to +85, Plastic Leaded Chip Carrier
5 V
0 to 33
SOT187-2
Philips Semiconductors
Product specification
80C51/87C51/80C52/87C52
80C51 8-bit microcontroller family
4 K/8 K OTP/ROM low voltage (2.7 V5.5 V),
low power, high speed (33 MHz), 128/256 B RAM
2000 Aug 07
5
BLOCK DIAGRAM
SU00845
PSEN
EAV
PP
ALE/PROG
RST
XTAL1
XTAL2
VCC
VSS
PORT 0
DRIVERS
PORT 2
DRIVERS
RAM ADDR
REGISTER
RAM
PORT 0
LATCH
PORT 2
LATCH
ROM/EPROM
REGISTER
B
ACC
STACK
POINTER
TMP2
TMP1
ALU
TIMING
AND
CONTROL
INSTRUCTION
REGISTER
PD
OSCILLATOR
PSW
PORT 1
LATCH
PORT 3
LATCH
PORT 1
DRIVERS
PORT 3
DRIVERS
PROGRAM
ADDRESS
REGISTER
BUFFER
PC
INCRE-
MENTER
PROGRAM
COUNTER
DPTR'S
MULTIPLE
P1.0P1.7
P3.0P3.7
P0.0P0.7
P2.0P2.7
SFRs
TIMERS
8
8
16
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