P87C51X2BBD NXP Semiconductors, P87C51X2BBD Datasheet - Page 20
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P87C51X2BBD
Manufacturer Part Number
P87C51X2BBD
Description
MCU 8-Bit 87C 80C51 CISC 4KB EPROM 5V 44-Pin LQFP Tray
Manufacturer
NXP Semiconductors
Datasheet
1.P87C52X2BN112.pdf
(62 pages)
Specifications of P87C51X2BBD
Package
44LQFP
Device Core
80C51
Family Name
87C
Maximum Speed
33 MHz
Ram Size
128 Byte
Program Memory Size
4 KB
Operating Supply Voltage
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:
P87C51X2BBD
Manufacturer:
ENE
Quantity:
14
Company:
Part Number:
P87C51X2BBD,157
Manufacturer:
NXP Semiconductors
Quantity:
10 000
Company:
Part Number:
P87C51X2BBDЈ¬157
Manufacturer:
NXP
Quantity:
10
Philips Semiconductors
2003 Jan 24
*n = 6 in 6-clock mode; n = 12 in 12-clock mode.
*n = 6 in 6-clock mode; n = 12 in 12-clock mode.
80C51 8-bit microcontroller family
4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V),
low power, high speed (30/33 MHz)
T2EX PIN
OSC
OSC
T2 Pin
T2 Pin
TRANSITION
DETECTOR
n*
n*
C/T2 = 0
C/T2 = 1
C/T2 = 0
C/T2 = 1
EXEN2
Figure 9. Timer 2 in Auto-Reload Mode (DCEN = 0)
Figure 10. Timer 2 Auto Reload Mode (DCEN = 1)
CONTROL
TR2
TR2
CONTROL
CONTROL
(DOWN COUNTING RELOAD VALUE)
RELOAD
(UP COUNTING RELOAD VALUE)
RCAP2L
FFH
TL2
20
(8-BITS)
RCAP2L
TL2
RCAP2H
FFH
TH2
(8-BITS)
RCAP2H
TH2
OVERFLOW
P80C3xX2; P80C5xX2;
T2EX PIN
EXF2
TF2
COUNT
DIRECTION
1 = UP
0 = DOWN
TOGGLE
TF2
P87C5xX2
INTERRUPT
EXF2
Product data
SU01624
TIMER 2
SU01623
INTERRUPT