P87C51RB2BBD NXP Semiconductors, P87C51RB2BBD Datasheet - Page 9

• Manufacturer Part Number: P87C51RB2BBD
• Description: MCU 8-Bit 87C 80C51 CISC 16KB EPROM 3.3V/5V 44-Pin LQFP Tray
• Manufacturer: NXP Semiconductors

Specifications of P87C51RB2BBD

• Package: 44LQFP
• Device Core: 80C51
• Family Name: 87C
• Maximum Speed: 33 MHz
• Ram Size: 512 Byte
• Program Memory Size: 16 KB
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 32
• Interface Type: UART
• Operating Temperature: 0 to 70 °C
• Number Of Timers: 3

*
# SFRs are modified from or added to the 80C51 SFRs.
– Reserved bits.
1. Reset value depends on reset source.
Philips Semiconductors
SPECIAL FUNCTION REGISTERS
2003 Jan 24
ACC*
AUXR#
AUXR1#
B*
CCAP0H#
CCAP1H#
CCAP2H#
CCAP3H#
CCAP4H#
CCAP0L#
CCAP1L#
CCAP2L#
CCAP3L#
CCAP4L#
CCAPM0#
CCAPM1#
CCAPM2#
CCAPM3#
CCAPM4#
CCON*#
CH#
CKCON#
CL#
CMOD#
DPTR:
IE*
IP*
IPH#
P0*
P1*
P2*
P3*
PCON#
SYMBOL
80C51 8-bit microcontroller family
with 512B/1KB RAM, low voltage (2.7 to 5.5 V), low power, high
speed (30/33 MHz)
DPH
DPL
SFRs are bit addressable.
1
Accumulator
Auxiliary
Auxiliary 1
B register
Module 0 Capture High
Module 1 Capture High
Module 2 Capture High
Module 3 Capture High
Module 4 Capture High
Module 0 Capture Low
Module 1 Capture Low
Module 2 Capture Low
Module 3 Capture Low
Module 4 Capture Low
Module 0 Mode
Module 1 Mode
Module 2 Mode
Module 3 Mode
Module 4 Mode
PCA Counter Control
PCA Counter High
Clock control
PCA Counter Low
PCA Counter Mode
Data Pointer (2 bytes)
Data Pointer High
Data Pointer Low
Interrupt Enable 0
Interrupt Priority
Interrupt Priority High
Port 0
Port 1
Port 2
Port 3
Power Control
DESCRIPTION
ADDRESS
DIRECT
DCH
DDH
FCH
FDH
EAH
EBH
ECH
EDH
EEH
DAH
DBH
DEH
E0H
8EH
A2H
F0H
FAH
FBH
FEH
D8H
F9H
8FH
E9H
D9H
A8H
B8H
B7H
A0H
B0H
83H
82H
80H
90H
87H
8KB/16KB/32KB/64KB OTP
MSB
SMOD1
CEX4
AD15
CIDL
AD7
DF
CF
EA
RD
E7
F7
AF
BF
B7
A7
B7
87
97
–
–
–
–
–
–
–
–
–
–
BIT ADDRESS, SYMBOL, OR ALTERNATIVE PORT FUNCTION
ECOM
ECOM
ECOM
ECOM
ECOM
WDTE
SMOD0
PPCH
CEX3
AD14
PPC
AD6
WR
CR
DE
AE
EC
BE
E6
F6
B6
86
96
A6
B6
–
–
–
9
CAPP
CAPP
CAPP
CAPP
CAPP
PT2H
CEX2
AD13
AD5
ET2
PT2
DD
BD
AD
E5
F5
B5
85
95
A5
B5
T1
–
–
–
–
–
–
CAPN
CAPN
CAPN
CAPN
CAPN
CCF4
CEX1
AD12
PSH
AD4
POF
DC
AC
ES
BC
PS
E4
F4
B4
84
94
A4
B4
T0
–
–
–
–
CCF3
PT1H
CEX0
P87C51RA2/RB2/RC2/RD2
AD11
INT1
MAT
MAT
MAT
MAT
MAT
GF2
AD3
GF1
ET1
PT1
DB
E3
AB
BB
B3
A3
B3
F3
83
93
–
–
–
CCF2
CPS1
PX1H
AD10
TOG
TOG
TOG
TOG
TOG
INT0
EX1
PX1
AD2
GF0
ECI
DA
E2
AA
BA
B2
A2
B2
F2
82
92
–
0
–
EXTRAM
CCF1
CPS0
PT0H
PWM
PWM
PWM
PWM
PWM
T2EX
AD1
AD9
ET0
PT0
TxD
PD
E1
D9
A9
B9
B1
A1
B1
F1
81
91
–
–
ECCF
ECCF
ECCF
ECCF
ECCF
CCF0
PX0H
DPS
ECF
AD0
AD8
RxD
EX0
PX0
AO
IDL
LSB
D8
E0
F0
X2
A8
B8
B0
T2
A0
B0
80
90
00H
xxxxxx00B
xxxxxxx0B
00H
xxxxxxxxB
xxxxxxxxB
xxxxxxxxB
xxxxxxxxB
xxxxxxxxB
xxxxxxxxB
xxxxxxxxB
xxxxxxxxB
xxxxxxxxB
xxxxxxxxB
x0000000B
x0000000B
x0000000B
x0000000B
x0000000B
00x00000B
00H
x0000000B
00H
00xxx000B
00H
00H
00H
x0000000B
x0000000B
FFH
FFH
FFH
FFH
00xxx000B
Product data
RESET
VALUE