P89LPC9408FBD,557 NXP Semiconductors, P89LPC9408FBD,557 Datasheet - Page 44

• Manufacturer Part Number: P89LPC9408FBD,557
• Description: IC 80C51 MCU FLASH 8K 64-LQFP
• Manufacturer: NXP Semiconductors
• Series: LPC900r

Specifications of P89LPC9408FBD,557

• Program Memory Type: FLASH
• Program Memory Size: 8KB (8K x 8)
• Package / Case: 64-LQFP
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 18MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, LED, POR, PWM, WDT
• Number Of I /o: 23
• Eeprom Size: 512 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• 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: 23
• 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
• On-chip Adc: 8-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: OM10097 - KIT FOR LCD DEMO LPC9408EPM900K - EMULATOR/PROGRAMMER NXP P89LPC9568-4000 - DEMO BOARD SPI/I2C TO DUAL UART568-3510 - DEMO BOARD SPI/I2C TO UART568-1759 - EMULATOR DEBUGGER/PROGRMMR LPC9X
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-3228; 935280583557; P89LPC9408FBD

Philips Semiconductors
Table 8:
P89LPC9408_1
Product data sheet
Number of
Back Planes
4
3
2
1
Selection of display configurations
7.27.2 Functional description
7.27.3 LCD bias voltages
7.27.4 Oscillator
7.27.5 Timing
7.27.6 Display register
Segments
128
96
64
32
The LCD controller is a versatile peripheral device designed to interface microcontrollers
to a wide variety of LCDs. It can directly drive any static or multiplexed LCD containing up
to four backplanes and up to 32 segments. The display configurations possible with the
LCD controller depend on the number of active backplane outputs required. A selection of
display configurations is shown in
in a typical system.
The microcontroller communicates to the LCD controller using the I
appropriate biasing voltages for the multiplexed LCD waveforms are generated internally.
The only other connections required to complete the system are to the power supplies
(V
LCD biasing voltages are obtained from an internal voltage divider consisting of three
series resistors connected between V
compensated externally via the supply to pin V
multiplexing of the LCD based on programmable configurations.
An internal oscillator provides the clock signals for the internal logic of the LCD controller
and its LCD drive signals. After power-up, pin SDA must be HIGH to guarantee that the
clock starts.
The LCD controller timing controls the internal data flow of the device. This includes the
transfer of display data from the display RAM to the display segment outputs. The timing
also generates the LCD frame signal whose frequency is derived from the clock
frequency. The frame signal frequency is a fixed division of the clock frequency from either
the internal or an external clock.
Frame frequency = f
A display latch holds the display data while the corresponding multiplex signals are
generated. There is a one-to-one relationship between the data in the display latch, the
LCD segment outputs, and each column of the display RAM.
DD
, V
SS
7-Segments Numeric
Digits
16
12
8
4
and V
8-bit two-clock 80C51 core with 32 segment
LCD
) and the LCD panel chosen for the application.
CLK
Rev. 01 — 16 December 2005
/24.
Indicator
Symbols
16
12
8
4
Table
LCD
8. All of these configurations can be implemented
and V
14- Segments Alphanumeric
Characters
8
6
4
2
LCD
SS
. The LCD voltage can be temperature
. A voltage selector drives the
Indicator
Symbols
16
12
8
4
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
P89LPC9408
4 LCD driver, 10-bit ADC
2
C-bus.The
Dot Matrix
128
96
64
32
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