LPC2470FBD208,551 NXP Semiconductors, LPC2470FBD208,551 Datasheet - Page 91
![IC ARM7 MCU LCD 208-LQFP](/photos/12/13/121391/208-lqfp_sot459-1_pkg_sml.jpg)
LPC2470FBD208,551
Manufacturer Part Number
LPC2470FBD208,551
Description
IC ARM7 MCU LCD 208-LQFP
Manufacturer
NXP Semiconductors
Series
LPC2400r
Datasheets
1.OM11077.pdf
(792 pages)
2.LPC2470FET208551.pdf
(89 pages)
3.LPC2470FET208551.pdf
(91 pages)
Specifications of LPC2470FBD208,551
Package / Case
208-LQFP
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, LCD, POR, PWM, WDT
Number Of I /o
160
Program Memory Type
ROMless
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/I2C/I2S/SPI/SSP/UART/USB
Maximum Clock Frequency
72 MHz
Number Of Programmable I/os
160
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2, MCB2470U
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
On-chip Dac
1-ch x 10-bit
Package
208LQFP
Device Core
ARM7TDMI-S
Family Name
LPC2000
Maximum Speed
72 MHz
Operating Supply Voltage
3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-4361-5
935284068551
LPC2470FBD208-S
935284068551
LPC2470FBD208-S
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC2470FBD208,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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NXP Semiconductors
UM10237_4
User manual
10.20 Dynamic Memory RAS & CAS Delay registers
Table 87.
A chip select can be connected to a single memory device, in this case the chip select
data bus width is the same as the device width. Alternatively the chip select can be
connected to a number of external devices. In this case the chip select data bus width is
the sum of the memory device data bus widths.
For example, for a chip select connected to:
The SDRAM bank select pins BA1 and BA0 are connected to address lines A14 and A13,
respectively.
(EMCDynamicRASCAS0-3 - 0xFFE0 8104, 124, 144, 164)
The EMCDynamicRasCas0-3 registers enable you to program the RAS and CAS
latencies for the relevant dynamic memory. It is recommended that these registers are
modified during system initialization, or when there are no current or outstanding
transactions. This can be ensured by waiting until the EMC is idle, and then entering
low-power, or disabled mode. These registers are accessed with one wait state.
Note: The values programmed into these registers must be consistent with the values
used to initialize the SDRAM memory device.
Table 5–88
Table 88.
14
1
1
1
Bit
1:0
7:2
•
•
•
•
a 32 bit wide memory device, choose a 32 bit wide address mapping.
a 16 bit wide memory device, choose a 16 bit wide address mapping.
four x 8 bit wide memory devices, choose a 32 bit wide address mapping.
two x 8 bit wide memory devices, choose a 16 bit wide address mapping.
12
1
1
1
Symbol
RAS latency
(active to
read/write
delay) (RAS)
-
11:9 8:7
011
100
100
Address mapping
Dynamic Memory RAS & CAS Delay registers (EMCDynamicRasCas0-3 - address
0xFFE0 8104, 0xFFE0 8124, 0xFFE0 8144, 0xFFE0 8164) bit description
shows the bit assignments for the EMCDynamicRasCas0-3 registers.
10
00
01
Description
256 MB (8Mx32), 4 banks, row length = 13, column length = 8
512 MB (64Mx8), 4 banks, row length = 13, column length = 11
512 MB (32Mx16), 4 banks, row length = 13, column length = 10
Rev. 04 — 26 August 2009
Value Description
00
01
10
11
-
Chapter 5: LPC24XX External Memory Controller (EMC)
Reserved.
One CCLK cycle.
Two CCLK cycles.
Three CCLK cycles (POR reset value).
Reserved, user software should not write ones to
reserved bits. The value read from a reserved bit is not
defined.
UM10237
© NXP B.V. 2009. All rights reserved.
91 of 792
Reset
Value
11
NA
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