P89LPC931FDH,112 NXP Semiconductors, P89LPC931FDH,112 Datasheet - Page 24

• Manufacturer Part Number: P89LPC931FDH,112
• Description: IC 80C51 MCU FLASH 8K 28-TSSOP
• Manufacturer: NXP Semiconductors
• Series: LPC900r

Specifications of P89LPC931FDH,112

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 12MHz
• 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: 256 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-TSSOP
• Processor Series: P89LPC9x
• Core: 80C51
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 18 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: - 45 C
• For Use With: 622-1014 - 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 UART622-1002 - 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: 568-1284-5; 935273877112; P89LPC931FDH; P89LPC931FDH,129; P89LPC931FDH-S

Philips Semiconductors
9397 750 14472
Product data
8.11.7 Additional port features
8.12.1 Brownout detection
8.12.2 Power-on detection
8.12 Power monitoring functions
8.13 Power reduction modes
After power-up, all pins are in Input-Only mode. Please note that this is different
from the LPC76x series of devices.
Every output on the P89LPC930/931 has been designed to sink typical LED drive
current. However, there is a maximum total output current for all ports which must not
be exceeded. Please refer to
specifications.
All ports pins that can function as an output have slew rate controlled outputs to limit
noise generated by quickly switching output signals. The slew rate is factory-set to
approximately 10 ns rise and fall times.
The P89LPC930/931 incorporates power monitoring functions designed to prevent
incorrect operation during initial power-up and power loss or reduction during
operation. This is accomplished with two hardware functions: Power-on Detect and
Brownout detect.
The Brownout detect function determines if the power supply voltage drops below a
certain level. The default operation is for a Brownout detection to cause a processor
reset, however it may alternatively be configured to generate an interrupt.
Brownout detection may be enabled or disabled in software.
If Brownout detection is enabled, the brownout condition occurs when V
the brownout trip voltage, V
negated when V
a power supply that can be below 2.7 V, BOE should be left in the unprogrammed
state so that the device can operate at 2.4 V, otherwise continuous brownout reset
may prevent the device from operating.
For correct activation of Brownout detect, the V
observed. Please see
The Power-on Detect has a function similar to the Brownout detect, but is designed to
work as power comes up initially, before the power supply voltage reaches a level
where Brownout detect can work. The POF flag in the RSTSRC register is set to
indicate an initial power-up condition. The POF flag will remain set until cleared by
software.
The P89LPC930/931 supports three different power reduction modes. These modes
are Idle mode, Power-down mode, and total Power-down mode.
•
•
After power-up, all I/O pins except P1.5, may be configured by software.
Pin P1.5 is input only. Pins P1.2 and P1.3 and are configurable for either input-only
or open-drain.
DD
Rev. 05 — 15 December 2004
rises above V
Table 7 “DC electrical characteristics”
BO
Table 7 “DC electrical characteristics”
(see
8-bit microcontrollers with two-clock 80C51 core
BO
Table 7 “DC electrical
. If the P89LPC930/931 device is to operate with
DD
rise and fall times must be
P89LPC930/931
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
characteristics”), and is
for specifications.
for detailed
DD
falls below
24 of 55