LPC2468FET208,551 NXP Semiconductors, LPC2468FET208,551 Datasheet - Page 302

• Manufacturer Part Number: LPC2468FET208,551
• Description: IC ARM7 MCU FLASH 512K 208TFBGA
• Manufacturer: NXP Semiconductors
• Series: LPC2400r

Specifications of LPC2468FET208,551

• Program Memory Type: FLASH
• Program Memory Size: 512KB (512K x 8)
• Package / Case: 208-TFBGA
• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 72MHz
• Connectivity: CAN, EBI/EMI, Ethernet, I²C, Microwire, MMC, SPI, SSI, SSP, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 160
• Ram Size: 98K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: LPC24
• Core: ARM7TDMI-S
• Data Bus Width: 16 bit, 32 bit
• Data Ram Size: 98 KB
• Interface Type: CAN/I2S/ISP/SSP/UART/USB
• Maximum Clock Frequency: 72 MHz
• Number Of Programmable I/os: 160
• Number Of Timers: 6
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2, IRD-LPC2468-DEV, SAB-TFBGA208, KSK-LPC2468-PL
• Development Tools By Supplier: OM10100
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• On-chip Dac: 1-ch x 10-bit
• Package: 208TFBGA
• Device Core: ARM7TDMI-S
• Family Name: LPC2000
• Maximum Speed: 72 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 622-1025 - KIT DEV IND REF DESIGN LPC2468622-1024 - BOARD SCKT ADAPTER FOR TFBGA208568-4358 - DISPLAY QVGA TFT FOR OM10100568-4309 - BOARD EXTENSION LPCSTICK568-4308 - EVAL LPC-STICK WITH LPC2468MCB2400U - BOARD EVAL MCB2400 + ULINK2MCB2400 - BOARD EVAL FOR NXP LPC246X SER622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-4262; 935283234551; LPC2468FET208-S

NXP Semiconductors
UM10237_4
User manual
6.12 LCD power-up and power-down sequence
The LCD controller requires the following power-up sequence to be performed:
1. When power is applied, the following signals are held LOW:
2. When LCD power is stabilized, a 1 is written to the LcdEn bit in the LCD_CTRL register.
This enables the following signals into their active states:
The LCDV[23:0] signals remain in an inactive state.
3. When the signals in step 2 have stabilized, the contrast voltage (not controlled or
supplied by the LCD controller) is applied to the LCD panel.
4. If required, a software or hardware timer can be used to provide the minimum display
specific delay time between application of the control signals and power to the panel
display. On completion of the time interval, power is applied to the panel by writing a 1 to
the LcdPwr bit within the LCD_CTRL register that, in turn, sets the LCDPWR signal high
and enables the LCDV[23:0] signals into their active states. The LCDPWR signal is
intended to be used to gate the power to the LCD panel.
The power-down sequence is the reverse of the above four steps and must be strictly
followed, this time, writing the respective register bits with 0.
Figure 12–40
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LCDLP
LCDDCLK
LCDFP
LCDENAB/ LCDM
LCDVD[23:0]
LCDLE
LCDLP
LCDDCLK
LCDFP
LCDENAB/ LCDM
LCDLE
shows the power-up and power-down sequences.
Rev. 04 — 26 August 2009
Chapter 12: LPC24XX LCD controller
UM10237
© NXP B.V. 2009. All rights reserved.
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