Document
INTEGRATED CIRCUITS
80C51/87C51/80C52/87C52
80C51 8-bit microcontroller family
4 K/8 K OTP/ROM low voltage (2.7 V–5.5 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
Philips Semiconductors
Philips Semiconductors
80C51 8-bit microcontroller family
4 K/8 K OTP/ROM low voltage (2.7 V–5.5 V), low power, high speed (33 MHz), 128/256 B RAM
Product specification
80C51/87C51/80C52/87C52
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)
80C31*/80C51/87C51
0K/4K
128
No
80C32*/80C52/87C52
0K/8K/16K/32K
256
No
80C51RA+/8XC51RA+/RB+/RC+
0K/8K/16K/32K
512
Yes
8XC51RD+
64K
1024
Yes
Hardware Watch Dog
Timer
No
No
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 VCC = 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 • Full–duplex 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
2000 Aug 07
2
853–0169 24291
Philips Semiconductors
80C51 8-bit microcontroller family
4 K/8 K OTP/ROM low voltage (2.7 V–5.5 V), low power, high speed (33 MHz), 128/256 B RAM
Product specification
80C51/87C51/80C52/87C52
80C51/87C51 ORDERING INFORMATION
MEMORY SIZE 4K × 8
TEMPERATURE RANGE °C AND PACKAGE
ROM OTP
P80C51SBP N P87C51SBP N
0 to +70, Plastic Dual In-line Package
ROM OTP
P80C51SBA A P87C51SBA A
0 to +70, Plastic Leaded Chip Carrier
ROM OTP
P80C51SBB B P87C51SBB B
0 to +70, Plastic Quad Flat Pack
ROM OTP
P80C51SFP N P87C51SFP N
–40 to +85, Plastic Dual In-line Package
ROM OTP
P80C51SFA A P87C51SFA A
–40 to +85, Plastic Leaded Chip Carrier
ROM OTP
P80C51SFB B P87C51SFB B
–40 to +85, Plastic Quad Flat Pack
ROM OTP
P80C51UBAA P87C51UBAA
0 to +70, Plastic Leaded Chip Carrier
ROM OTP
P80C51UBPN P87C51UBPN
0 to +70, Plastic Dual In-line Package
ROM OTP
P80C51UFA A P87C51UFA A
–40 to +85, Plastic Leaded Chip Carrier
VOLTAGE RANGE
2.7 V to 5.5 V
FREQ. (MHz)
0 to 16
DWG. # SOT129-1
2.7 V to 5.5 V
0 to 16
SOT187-2
2.7 V to 5.5 V
0 to 16
SOT307-2
2.7 V to 5.5 V
0 to 16
SOT129-1
2.7 V to 5.5 V
0 to 16
SOT187-2
2.7 V to 5.5 V
0 to 16
SOT307-2
5V
0 to 33
SOT187-2
5V
0 to 33
SOT129-1
5V
0 to 33
SOT187-2
PART NUMBER DERIVATION
DEVICE NUMBER
DEVICE NUMBER
OPERATING FREQUENCY, MAX (S)
ROM
P80C51
S = 16 MHz
ROM
P80C52
S = 16 MHz
OTP
P87C51
U = 33 MHz
OTP
P87C52
U = 33 MHz
TEMPERATURE RANGE (B)
B = 0_ to +70_C B = 0_ to +70_C F = –40_C to +85_C F = –40_C to +85_C
PACKAGE (AA)
AA = PLCC AA = PLCC BB = PQFP BB = PQFP
2000 Aug 07
3
Philips Semiconductors
80C51 8-bit microcontroller family
4 K/8 K OTP/ROM low voltage (2.7 V–5.5 V), low power, high speed (33 MHz), 128/256 B RAM
Product specification
80C51/87C51/80C52/87C52
80C52/87C52 ORDERING INFORMATION
MEMORY SIZE 8K × 8
TEMPERATURE RANGE °C AN.