P89LPC932A1FA,112 NXP Semiconductors, P89LPC932A1FA,112 Datasheet - Page 18

• Manufacturer Part Number: P89LPC932A1FA,112
• Description: IC 80C51 MCU FLASH 8K 28-PLCC
• Manufacturer: NXP Semiconductors
• Series: LPC900r

Specifications of P89LPC932A1FA,112

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 18MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, POR, PWM, WDT
• Number Of I /o: 26
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-PLCC
• Processor Series: P89LPC9x
• Core: 80C51
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 12 MHz
• Number Of Programmable I/os: 26
• Number Of Timers: 2
• Operating Supply Voltage: 2.4 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• For Use With: OM6292 - DEMO BOARD PCA2125 RTCDB-TSSOP-LPC932 - BOARD FOR LPC932 TSSOP622-1014 - BOARD FOR LPC9XX TSSOP622-1008 - BOARD FOR LPC9103 10-HVSON622-1006 - SOCKET ADAPTER BOARDMCB900K - BOARD PROTOTYPE NXP 89LPC9EPM900K - EMULATOR/PROGRAMMER NXP P89LPC9568-4000 - DEMO BOARD SPI/I2C TO DUAL UART568-3510 - DEMO BOARD SPI/I2C TO UART622-1003 - KIT FOR LCD DEMO622-1002 - USB IN-CIRCUIT PROG LPC9XX568-1759 - EMULATOR DEBUGGER/PROGRMMR LPC9X568-1758 - BOARD EVAL FOR LPC93X MCU FAMILY
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details
• Other names: 568-4279-5; 935276131112; P89LPC932A1FA

NXP Semiconductors
P89LPC932A1_3
Product data sheet
7.4 On-chip RC oscillator option
7.5 Watchdog oscillator option
7.6 External clock input option
The frequency of this clock output is
in Idle mode, it may be turned off prior to entering Idle, saving additional power.
The P89LPC932A1 has a 6-bit TRIM register that can be used to tune the frequency of
the RC oscillator. During reset, the TRIM value is initialized to a factory preprogrammed
value to adjust the oscillator frequency to 7.373 MHz
End-user applications can write to the TRIM register to adjust the on-chip RC oscillator to
other frequencies.
The watchdog has a separate oscillator which has a frequency of 400 kHz. This oscillator
can be used to save power when a high clock frequency is not needed.
In this configuration, the processor clock is derived from an external source driving the
P3.1/XTAL1 pin. The rate may be from 0 Hz up to 18 MHz. The P3.0/XTAL2 pin may be
used as a standard port pin or a clock output. When using an oscillator frequency
above 12 MHz, the reset input function of P1.5 must be enabled. An external circuit
is required to hold the device in reset at power-up until V
specified level. When system power is removed, V
specified operating voltage. When using an oscillator frequency above 12 MHz, in
some applications, an external brownout detect circuit may be required to hold the
device in reset when V
Fig 7. Block diagram of oscillator control
XTAL1
XTAL2
(7.3728 MHz 1 %)
(400 kHz
OSCILLATOR
OSCILLATOR
WATCHDOG
RC
MEDIUM FREQUENCY
HIGH FREQUENCY
LOW FREQUENCY
30 %
20%
)
TIMER 0 AND
RCCLK
Rev. 03 — 12 March 2007
TIMER 1
DD
8-bit microcontroller with accelerated two-clock 80C51 core
falls below the minimum specified operating voltage.
1
I
2
2
C-BUS
that of the CCLK. If the clock output is not needed
OSCCLK
PCLK
DIVM
SPI
DD
1 % at room temperature.
CCLK
PCLK
will fall below the minimum
P89LPC932A1
DD
2
UART
has reached its
© NXP B.V. 2007. All rights reserved.
(P89LPC932A1)
32
WDT
RTC
CPU
CCU
PLL
002aaa891
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