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Information as of 2000-01-10
 Latest information online
80C51;87C51;80C31; 80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless low voltage (2.7V-5.5V), low power, high speed (33 MHz)
| Description |  |
|
The Philips 8XC51/31 is a high-performance static 80C51 design
fabricated with Philips high-density CMOS technology with operation
from 2.7V to 5.5V.
The 8XC51/31 contains a 4k × 8 ROM, a 128 × 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.
SELECTION TABLE
For applications requiring more ROM and RAM,
see the 8XC52/54/58/80C32, 8XC51FA/FB/FC/80C51FA,
and 8XC51RA+/RB+/RC+/80C51RA+ data sheet.
| ROM/EPROM
Memory Size
(X by 8) | RAM Size
(X by 8) | Programmable
Timer Counter
(PCA) | Hardware
Watch Dog
Timer |
| 80C31/8XC51 | 0K/4K | 128 | No | No |
| 80C32/8XC52/54/58 | 0K/8K/16K/32K | 256 | No | No |
| 80C51FA/8XC51FA/FB/FC | 0K/8K/16K/32K | 256 | Yes | 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)
- 128 × 8 RAM
- Three 16-bit counter/timers
- Full duplex serial channel
- Boolean processor
- Full static operation
- Low voltage (2.7V to 5.5V@ 16MHz) 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
- Three speed ranges at VCC = 5V
- 0 to 16MHz
- 0 to 33MHz
- Three package styles
- Extended temperature ranges
- Dual Data Pointers
- Second DPTR register
- 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)
- Wake-up from Power Down by an external interrupt (8XC51)
| Datasheet | |
|
| Products, packages, availability and ordering | |
|
| Partnumber |
Order code (12nc) |
marking/packing |
package |
device status |
buy online |
| P80C31SBAA |
9352 555 50112 |
Standard marking * tube |
AXE |
RFS |
  |
| P80C31SBBB |
9352 556 10557 |
Standard marking * tray dry pack, bakeable, multiple |
BXI |
RFS |
|
| P80C31SBPN |
9352 557 00112 |
Standard marking * tube |
NWE |
RFS |
|
| P80C31SFAA |
9352 555 60112 |
Standard marking * tube |
AXE |
RFS |
|
| P80C31SFPN |
9352 557 20112 |
Standard marking * tube |
NWE |
RFS |
|
| P80C31UBAA |
9352 555 90112 |
Standard marking * tube |
AXE |
RFS |
|
| P80C31UBPN |
9352 557 50112 |
Standard marking * tube |
NWE |
RFS |
|
| P80C31UFAA |
9352 556 00112 |
Standard marking * tube |
AXE |
RFS |
|
| P80C31UFPN |
9352 557 60112 |
Standard marking * tube |
NWE |
RFS |
|
| P87C51SBAA |
9352 601 82112 |
Standard marking * tube |
AXE |
RFS |
|
| P87C51SBBB |
9352 601 88557 |
Standard marking * tray dry pack, bakeable, multiple |
BXI |
RFS |
|
| P87C51SBPN |
9352 601 76112 |
Standard marking * tube |
NWE |
RFS |
|
| P87C51SFAA |
9352 601 83112 |
Standard marking * tube |
AXE |
RFS |
|
| P87C51SFPN |
9352 601 77112 |
Standard marking * tube |
NWE |
RFS |
|
| P87C51UBAA |
9352 601 86112 |
Standard marking * tube |
AXE |
RFS |
|
| P87C51UBPN |
9352 601 80112 |
Standard marking * tube |
NWE |
RFS |
|
| P87C51UFAA |
9352 601 87112 |
Standard marking * tube |
AXE |
RFS |
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Please note, devices listed in the "Products, packages, availability and ordering" table marked with "WIT" are discontinued. Devices marked with "DOD" will be in the near future.
Contact your nearest sales or distributor office for the latest information on product status and availability.
| Find similar products: | |
80C51;87C51;80C31 links to the similar products page containing an overview of products that are similar in function or related to the part number(s) as listed on this page. The similar products page includes products from the same catalog tree(s) , relevant selection guides and products from the same functional category.
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