P87C51RA2FA,512 NXP Semiconductors, P87C51RA2FA,512 Datasheet - Page 5

• Manufacturer Part Number: P87C51RA2FA,512
• Description: Microcontrollers (MCU) 8B MCU 8K-64K/256-1K 2.7-5.5V 33MHZ
• Manufacturer: NXP Semiconductors
• Series: 87Cr

Specifications of P87C51RA2FA,512

• Data Bus Width: 8 bit
• Program Memory Type: EPROM
• Program Memory Size: 8 KB
• Data Ram Size: 512 B
• Interface Type: UART
• Maximum Clock Frequency: 33 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: PLCC-44
• Minimum Operating Temperature: - 40 C
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Eeprom Size: -
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: -
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Lead Free Status / Rohs Status: Details
• Other names: 935271890512

Philips Semiconductors
BLOCK DIAGRAM (CPU-ORIENTED)
2003 Jan 24
80C51 8-bit microcontroller family
with 512B/1KB RAM, low voltage (2.7 to 5.5 V), low power, high
speed (30/33 MHz)
EAV
PSEN
RST
ALE
PP
V
V
CC
SS
XTAL1
CONTROL
REGISTER
TIMING
RAM ADDR
REGISTER
OSCILLATOR
AND
B
PD
XTAL2
RAM
ACC
8KB/16KB/32KB/64KB OTP
TMP2
DRIVERS
P1.0–P1.7
PORT 1
PORT 1
LATCH
PSW
DRIVERS
P0.0–P0.7
PORT 0
PORT 0
LATCH
ALU
TMP1
5
TIMERS
P.C.A.
SFRs
P2.0–P2.7
DRIVERS
PORT 2
PORT 2
LATCH
P87C51RA2/RB2/RC2/RD2
POINTER
DRIVERS
STACK
P3.0–P3.7
PORT 3
PORT 3
LATCH
MEMORY
OTP
8
PROGRAM
REGISTER
PROGRAM
MULTIPLE
ADDRESS
COUNTER
MENTER
DPTR’S
INCRE-
BUFFER
PC
8
SU01658
Product data
16