P80C32SBBB,557 NXP Semiconductors, P80C32SBBB,557 Datasheet - Page 2

• Manufacturer Part Number: P80C32SBBB,557
• Description: IC 80C51 MCU 256 ROMLESS 44-QFP
• Manufacturer: NXP Semiconductors
• Series: 80Cr

Specifications of P80C32SBBB,557

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: UART/USART
• Peripherals: POR
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-MQFP, 44-PQFP
• Data Bus Width: 8 bit
• Program Memory Size: 32 KB
• Data Ram Size: 256 B
• Interface Type: UART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details
• Other names: 935255820557; P80C32SBBB; P80C32SBBB

Philips Semiconductors
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
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 8XC54/58
and 8XC51RA+/RB+/RC+/80C51RA+ data sheet.
80C31/8XC51
0K/4K
80C32/8XC52/54/58
0K/8K/16K/32K
80C51RA+/8XC51RA+/RB+/RC+
0K/8K/16K/32K
8XC51RD+
64K
2000 Aug 07
ROM/EPROM
Memory Size
80C51 8-bit microcontroller family
128/256 byte RAM ROMless low voltage (2.7V–5.5V),
low power, high speed (33 MHz)
(X by 8)
RAM Size
(X by 8)
1024
128
256
512
Programmable
Timer Counter
(PCA)
Yes
Yes
No
No
8 RAM/256
Watch Dog
Hardware
Timer
Yes
Yes
No
No
8
2
FEATURES
8051 Central Processing Unit
– 128
– 256
– 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
– 0 to 16 MHz
– 0 to 33 MHz
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
Programmable clock out
Asynchronous port reset
Low EMI (inhibit ALE)
Wake-up from Power Down by an external interrupt
8 RAM (80C31)
8 RAM (80C32)
CC
= 5 V
80C31/80C32
Product specification
853–2213 24293