P87C51RB+4A NXP Semiconductors, P87C51RB+4A Datasheet - Page 30

• Manufacturer Part Number: P87C51RB+4A
• Description: MCU 8-Bit 87C 80C51 CISC 16KB EPROM 3.3V/5V 44-Pin PLCC Tube
• Manufacturer: NXP Semiconductors

Specifications of P87C51RB+4A

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

Philips Semiconductors
(8XC51FX and 8XC51RX+ ONLY)
2000 Aug 07
80C51 8-bit microcontroller family
8K–64K/256–1K OTP/ROM/ROMless, low voltage (2.7V–5.5V),
low power, high speed (33MHz)
WRITE TO
CCAPnL
0
WRITE TO
CCAPnH
1
RESET
ENABLE
––
ECOMn
CCAPnH
PCA TIMER/COUNTER
16–BIT COMPARATOR
CH
––
CF
CAPPn
OVERFLOW
ENABLE
0
Figure 23. PCA High Speed Output Mode
ECOMn
CCAPnL
CR
CAPNn
CL
Figure 24. PCA PWM Mode
0
CAPPn
PCA TIMER/COUNTER
0
––
MATn
COMPARATOR
0
CCAPnH
CCAPnL
MATCH
8–BIT
CL
30
CAPNn
CCF4
0
TOGn
0
CL >= CCAPnL
CL < CCAPnL
MATn
(TO CCFn)
CCF3
PWMn
TOGn
CCF2
0
1
8XC51RA+/RB+/RC+/RD+/80C51RA+
1
ECCFn
0
PWMn
CCF1
0
CCAPMn, n: 0..4
(DAH – DEH)
8XC51FA/FB/FC/80C51FA
ECCFn
CCF0
SU00752
TOGGLE
CEXn
CCAPMn, n: 0..4
CCON
(D8H)
(DAH – DEH)
Product specification
PCA INTERRUPT
8XC54/58
SU00751
CEXn