P89C51RB2HBA NXP Semiconductors, P89C51RB2HBA Datasheet - Page 48

• 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
2002 May 24
RECORD TYPE
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
05
06
Miscellaneous Read Functions
General Format of Function 05
Where:
Example:
Direct Load of Baud Rate
General Format of Function 06
Where:
Example:
:02xxxx05ffsscc
02
xxxx
05
ffss
cc
:020000050001F8
:02xxxx06hhllcc
02
xxxx
06
hh
ll
cc
:02000006F500F3
= number of bytes (hex) in record
= required field, but value is a “don’t care”
= “Miscellaneous Read” function code
= subfunction and selection code
= checksum
= number of bytes (hex) in record
= required field, but value is a “don’t care”
= ”Direct Load of Baud Rate” function code
= high byte of Timer 2
= low byte of Timer 2
= checksum
0000 = read signature byte – manufacturer id (15H)
0001 = read signature byte – device id # 1
0002 = read signature byte – device id # 2
0700 = read security bits
0701 = read status byte
0702 = read boot vector
read signature byte – device id # 1
COMMAND/DATA FUNCTION
45
P89C51RB2/P89C51RC2/
(C2H)
P89C51RD2Hxx
Product data