P89V52X2FA,512 NXP Semiconductors, P89V52X2FA,512 Datasheet - Page 18
![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
6.8.3 Mode 2
6.8.4 Mode 3
Mode 2 configures the Timer register as an 8-bit Counter (TLn) with automatic reload, as
shown in
contents of THn, which must be preset by software. The reload leaves THn unchanged.
Mode 2 operation is the same for Timer 0 and Timer 1.
When timer 1 is in Mode 3 it is stopped (holds its count). The effect is the same as setting
TR1 = 0.
Timer 0 in Mode 3 establishes TL0 and TH0 as two separate 8-bit counters. The logic for
Mode 3 and Timer 0 is shown in
T0GATE, TR0, INT0, and TF0. TH0 is locked into a timer function (counting machine
cycles) and takes over the use of TR1 and TF1 from Timer 1. Thus, TH0 now controls the
‘Timer 1’ interrupt.
Mode 3 is provided for applications that require an extra 8-bit timer. With Timer 0 in
Mode 3, the P89V52X2 can look like it has an additional Timer.
Note: When Timer 0 is in Mode 3, Timer 1 can be turned on and off by switching it into
and out of its own Mode 3. It can still be used by the serial port as a baud rate generator,
or in any application not requiring an interrupt.
Fig 11. Timer/Counter 0 or 1 in Mode 1 (16-bit counter)
Fig 12. Timer/Counter 0 or 1 in Mode 2 (8-bit auto-reload)
INTn pin
TnGate
INTn pin
Tn pin
osc/6
TnGate
TRn
Tn pin
osc/6
TRn
Figure
12. Overflow from TLn not only sets TFn, but also reloads TLn with the
Rev. 03 — 4 May 2009
C/T = 0
C/T = 1
C/T = 0
C/T = 1
Figure
13. TL0 uses the Timer 0 control bits: T0C/T,
80C51 with 256 B RAM, 192 B data EEPROM
control
control
(8-bits)
TLn
(8-bits)
(8-bits)
TLn
THn
reload
(8-bits)
THn
overflow
overflow
P89V52X2
TFn
© NXP B.V. 2009. All rights reserved.
TFn
interrupt
002aaa521
002aaa520
interrupt
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