P87C52UBPN,112 NXP Semiconductors, P87C52UBPN,112 Datasheet - Page 12
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P87C52UBPN,112
Manufacturer Part Number
P87C52UBPN,112
Description
IC 80C51 MCU 256 RAM 40DIP
Manufacturer
NXP Semiconductors
Series
87Cr
Datasheet
1.P87C52UBAA512.pdf
(38 pages)
Specifications of P87C52UBPN,112
Core Processor
8051
Core Size
8-Bit
Speed
33MHz
Connectivity
EBI/EMI, UART/USART
Peripherals
POR
Number Of I /o
32
Program Memory Size
8KB (8K x 8)
Program Memory Type
OTP
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
40-DIP (0.600", 15.24mm)
Package
40PDIP
Device Core
80C51
Family Name
87C
Maximum Speed
33 MHz
Operating Supply Voltage
5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
32
Interface Type
UART
Number Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Other names
935253730112
P87C52UBPN
P87C52UBPN
P87C52UBPN
P87C52UBPN
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
*
T2EX PIN
Symbol
—
T2OE
DCEN
T2MOD
User software should not write 1s to reserved bits. These bits may be used in future 8051 family products to invoke new features.
In that case, the reset or inactive value of the new bit will be 0, and its active value will be 1. The value read from a reserved bit is
indeterminate.
T2 PIN
OSC
Not Bit Addressable
Address = 0C9H
Function
Not implemented, reserved for future use.*
Timer 2 Output Enable bit.
Down Count Enable bit. When set, this allows Timer 2 to be configured as an up/down counter.
TRANSITION
Bit
DETECTOR
12
—
7
C/T2 = 0
C/T2 = 1
—
EXEN2
6
Figure 4. Timer 2 in Auto-Reload Mode (DCEN = 0)
Figure 3. Timer 2 Mode (T2MOD) Control Register
CONTROL
—
5
TR2
CONTROL
RELOAD
—
4
12
(8-BITS)
RCAP2L
TL2
—
3
(8-BITS)
RCAP2H
TH2
—
2
80C51/87C51/80C52/87C52
T2OE
1
EXF2
TF2
Reset Value = XXXX XX00B
DCEN
0
Product specification
INTERRUPT
SU00729
TIMER 2
SU00067