P80C32SBBB,557 NXP Semiconductors, P80C32SBBB,557 Datasheet - Page 4

• 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
BLOCK DIAGRAM
2000 Aug 07
80C51 8-bit microcontroller family
128/256 byte RAM ROMless low voltage (2.7V–5.5V),
low power, high speed (33 MHz)
ALE/PROG
EAV
PSEN
RST
PP
V
V
CC
SS
XTAL1
CONTROL
REGISTER
TIMING
RAM ADDR
REGISTER
OSCILLATOR
AND
B
PD
XTAL2
RAM
ACC
TMP2
DRIVERS
P1.0–P1.7
PORT 1
PORT 1
LATCH
PSW
DRIVERS
P0.0–P0.7
PORT 0
PORT 0
LATCH
ALU
TMP1
4
TIMERS
SFRs
P2.0–P2.7
DRIVERS
PORT 2
PORT 2
LATCH
POINTER
DRIVERS
STACK
P3.0–P3.7
PORT 3
PORT 3
LATCH
ROM/EPROM
8
80C31/80C32
PROGRAM
REGISTER
PROGRAM
MULTIPLE
ADDRESS
COUNTER
MENTER
DPTR’S
INCRE-
BUFFER
PC
8
Product specification
SU00845
16