P89C51RB2HBA NXP Semiconductors, P89C51RB2HBA Datasheet - Page 4

• Manufacturer Part Number: P89C51RB2HBA
• Manufacturer: NXP Semiconductors

Specifications of P89C51RB2HBA

• Cpu Family: 89C
• Device Core: 80C51
• Device Core Size: 8b
• Frequency (max): 33MHz
• Interface Type: UART
• Program Memory Type: Flash
• Program Memory Size: 16KB
• Total Internal Ram Size: 512Byte
• # I/os (max): 32
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Instruction Set Architecture: CISC
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: PLCC
• Lead Free Status / Rohs Status: Not Compliant

Philips Semiconductors
DESCRIPTION
The P89C51RB2/RC2/RD2Hxx device contains a non-volatile
16KB/32KB/64KB Flash program memory that is both parallel
programmable and serial In-System and In-Application
Programmable. In-System Programming (ISP) allows the user to
download new code while the microcontroller sits in the application.
In-Application Programming (IAP) means that the microcontroller
fetches new program code and reprograms itself while in the
system. This allows for remote programming over a modem link.
A default serial loader (boot loader) program in ROM allows serial
In-System programming of the Flash memory via the UART without
the need for a loader in the Flash code. For In-Application
Programming, the user program erases and reprograms the Flash
memory by use of standard routines contained in ROM.
This device executes one machine cycle in 6 clock cycles, hence
providing twice the speed of a conventional 80C51. An OTP
configuration bit lets the user select conventional 12 clock timing
if desired.
This device is a Single-Chip 8-Bit Microcontroller manufactured in
advanced CMOS process and is a derivative of the 80C51
microcontroller family. The instruction set is 100% compatible with
the 80C51 instruction set.
The device also has four 8-bit I/O ports, three 16-bit timer/event
counters, a multi-source, four-priority-level, nested interrupt structure,
an enhanced UART and on-chip oscillator and timing circuits.
The added features of the P89C51RB2/RC2/RD2Hxx makes it a
powerful microcontroller for applications that require pulse width
modulation, high-speed I/O and up/down counting capabilities such
as motor control.
2002 May 24
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
1
FEATURES
80C51 Central Processing Unit
On-chip Flash Program Memory with In-System Programming
(ISP) and In-Application Programming (IAP) capability
Boot ROM contains low level Flash programming routines for
downloading via the UART
Can be programmed by the end-user application (IAP)
Parallel programming with 87C51 compatible hardware interface
to programmer
Six clocks per machine cycle operation (standard)
12 clocks per machine cycle operation (optional)
Speed up to 20 MHz with 6 clock cycles per machine cycle
(40 MHz equivalent performance); up to 33 MHz with 12 clocks
per machine cycle
Fully static operation
RAM expandable externally to 64 kbytes
Four interrupt priority levels
Seven interrupt sources
Four 8-bit I/O ports
Full-duplex enhanced UART
– Framing error detection
– Automatic address recognition
Power control modes
– Clock can be stopped and resumed
– Idle mode
– Power down mode
Programmable clock out
Second DPTR register
Asynchronous port reset
Low EMI (inhibit ALE)
Programmable Counter Array (PCA)
– PWM
– Capture/compare
P89C51RB2/P89C51RC2/
P89C51RD2Hxx
853-2349 28312
Product data