P87C52SBBB NXP Semiconductors, P87C52SBBB Datasheet - Page 13
P87C52SBBB
Manufacturer Part Number
P87C52SBBB
Description
MCU 8-Bit 87C 80C51 CISC 8KB EPROM 3.3V/5V 44-Pin PQFP
Manufacturer
NXP Semiconductors
Datasheet
1.P87C52UBAA512.pdf
(38 pages)
Specifications of P87C52SBBB
Package
44PQFP
Device Core
80C51
Family Name
87C
Maximum Speed
33 MHz
Ram Size
256 Byte
Program Memory Size
8 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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
P87C52SBBB
Manufacturer:
PHILIPS
Quantity:
672
Part Number:
P87C52SBBB
Manufacturer:
PHILIPS/飞利浦
Quantity:
20 000
Company:
Part Number:
P87C52SBBB,557
Manufacturer:
NXP Semiconductors
Quantity:
10 000
Company:
Part Number:
P87C52SBBB557
Manufacturer:
NXP Semiconductors
Quantity:
26 740
Philips Semiconductors
2000 Aug 07
80C51 8-bit microcontroller family
4 K/8 K OTP/ROM low voltage (2.7 V–5.5 V),
low power, high speed (33 MHz), 128/256 B RAM
OSC
OSC
T2EX Pin
T2 Pin
T2 PIN
12
2
Transition
Detector
NOTE: OSC. Freq. is divided by 2, not 12.
C/T2 = 0
C/T2 = 1
C/T2 = 0
C/T2 = 1
Note availability of additional external interrupt.
EXEN2
TR2
Control
Figure 5. Timer 2 Auto Reload Mode (DCEN = 1)
Figure 6. Timer 2 in Baud Rate Generator Mode
CONTROL
TR2
Control
(DOWN COUNTING RELOAD VALUE)
EXF2
(UP COUNTING RELOAD VALUE)
RCAP2L
FFH
TL2
RCAP2L
(8-bits)
Interrupt
13
Timer 2
TL2
RCAP2H
FFH
TH2
(8-bits)
RCAP2H
TH2
OVERFLOW
Reload
80C51/87C51/80C52/87C52
T2EX PIN
“1”
“1”
2
COUNT
DIRECTION
1 = UP
0 = DOWN
“0”
“0”
“0”
Overflow
Timer 1
TOGGLE
TF2
“1”
Product specification
16
16
EXF2
SMOD
RCLK
TCLK
INTERRUPT
SU00068
SU00730
RX Clock
TX Clock