P89V52X2FA,512 NXP Semiconductors, P89V52X2FA,512 Datasheet - Page 25
![IC 80C51 MCU FLASH 8K 44-PLCC](/photos/6/98/69845/568-44-plcc_sot187-2_sml.jpg)
P89V52X2FA,512
Manufacturer Part Number
P89V52X2FA,512
Description
IC 80C51 MCU FLASH 8K 44-PLCC
Manufacturer
NXP Semiconductors
Series
89Vr
Datasheet
1.P89V52X2FA512.pdf
(57 pages)
Specifications of P89V52X2FA,512
Program Memory Type
FLASH
Program Memory Size
8KB (8K x 8)
Package / Case
44-PLCC
Core Processor
8051
Core Size
8-Bit
Speed
40MHz
Connectivity
UART/USART
Peripherals
POR
Number Of I /o
32
Eeprom Size
192 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Processor Series
P89V5x
Core
80C51
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
UART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
32
Number Of Timers
3
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Minimum Operating Temperature
- 55 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
OM11011 - BOARD FOR P89V52X2 44-TQFP622-1017 - BOARD 44-ZIF PLCC SOCKET622-1012 - BOARD FOR P89V52X2 44-TQFP622-1008 - BOARD FOR LPC9103 10-HVSON622-1002 - USB IN-CIRCUIT PROG LPC9XX
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-4249-5
935282528512
P89V52X2FA
935282528512
P89V52X2FA
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
P89V52X2FA,512
Manufacturer:
NXP Semiconductors
Quantity:
10 000
NXP Semiconductors
P89V52X2_3
Product data sheet
6.10.1 Mode 0
6.9.5 Summary of baud rate equations
6.10 UART
When Timer 2 is in the baud rate generator mode, one should not try to read or write TH2
and TL2. Under these conditions, a read or write of TH2 or TL2 may not be accurate. The
RCAP2 registers may be read, but should not be written to, because a write might overlap
a reload and cause write and/or reload errors. The timer should be turned off (clear TR2)
before accessing the Timer 2 or RCAP2 registers.
rates and how they can be obtained from Timer 2.
Timer 2 is in baud rate generating mode. If Timer 2 is being clocked through pin T2 (P1[0])
the baud rate is:
If Timer 2 is being clocked internally, the baud rate is:
Where f
To obtain the reload value for RCAP2H and RCAP2L, the above equation can be rewritten
as:
Table 20.
The UART operates in all standard modes. Enhancements over the standard 80C51
UART include Framing Error detection, and automatic address recognition.
Serial data enters and exits through RXD and TXD outputs the shift clock. Only 8 bits are
transmitted or received, LSB first. The baud rate is fixed at
UART configured to operate in this mode outputs serial clock on TXD line no matter
whether it sends or receives data on RXD line.
Rate
750 kBd
19.2 kBd
9.6 kBd
4.8 kBd
2.4 kBd
600 Bd
220 Bd
600 Bd
220 Bd
Baud rate = Timer 2 overflow rate/16
Baud rate = f
RCAP2H, RCAP2L = 65536
osc
Timer 2 generated commonly used baud rates
= oscillator frequency
osc
/(16
Oscillator frequency
12 MHz
12 MHz
12 MHz
12 MHz
12 MHz
12 MHz
12 MHz
6 MHz
6 MHz
(65536
Rev. 03 — 4 May 2009
f
osc
(RCAP2H, RCAP2L)))
/(16
80C51 with 256 B RAM, 192 B data EEPROM
baud rate)
Timer 2
RCAP2H
FF
FF
FF
FF
FE
FB
F2
FD
F9
Table 20
1
shows commonly used baud
6
of the CPU clock frequency.
RCAP2L
FF
D9
B2
64
C8
1E
AF
8F
57
P89V52X2
© NXP B.V. 2009. All rights reserved.
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