P89C51RB2HBA NXP Semiconductors, P89C51RB2HBA Datasheet - Page 50

• 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
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
PROGRAM BOOT VECTOR
READ DEVICE DATA
READ MANUFACTURER ID
READ DEVICE ID # 1
READ DEVICE ID # 2
READ SECURITY BITS
READ STATUS BYTE
READ BOOT VECTOR
IAP CALL
Input Parameters:
Return Parameter
Input Parameters:
Return Parameter
Input Parameters:
Return Parameter
Input Parameters:
Return Parameter
Input Parameters:
Return Parameter
Input Parameters:
Return Parameter
Input Parameters:
Return Parameter
Input Parameters:
Return Parameter
R0 = osc freq (integer)
R1 = 06h
R1 = 86h (WDT feed)
DPH = 00h
DPL = 01h – program boot vector
ACC = boot vector
ACC = boot vector
R1 = 03h
R1 = 83h (WDT feed)
DPTR = address of byte to read
ACC = value of byte read
R0 = osc freq (integer)
R1 = 00h
R1 = 80h (WDT feed)
DPH = 00h
DPL = 00h (manufacturer ID)
ACC = value of byte read
R0 = osc freq (integer)
R1 = 00h
R1 = 80h (WDT feed)
DPH = 00h
DPL = 01h (device ID # 1)
ACC = value of byte read
R0 = osc freq (integer)
R1 = 00h
R1 = 80h (WDT feed)
DPH = 00h
DPL = 02h (device ID # 2)
ACC = value of byte read
R0 = osc freq (integer)
R1 = 07h
R1 = 87h (WDT feed)
DPH = 00h
DPL = 00h (security bits)
ACC = value of byte read
R0 = osc freq (integer)
R1 = 07h
R1 = 87h (WDT feed)
DPH = 00h
DPL = 01h (status byte)
ACC = value of byte read
R0 = osc freq (integer)
R1 = 07h
R1 = 87h (WDT feed)
DPH = 00h
DPL = 02h (boot vector)
ACC = value of byte read
47
PARAMETER
P89C51RB2/P89C51RC2/
P89C51RD2Hxx
Product data