LPC1837FET256,551 NXP Semiconductors, LPC1837FET256,551 Datasheet - Page 339

• Manufacturer Part Number: LPC1837FET256,551
• Description: Microcontrollers (MCU) 32BIT ARM CORTEX-M3 MCU 136KB SRAM
• Manufacturer: NXP Semiconductors
• Series: LPC18xxr

Specifications of LPC1837FET256,551

• Core: ARM Cortex M3
• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 150MHz
• Connectivity: CAN, EBI/EMI, Ethernet, I²C, Microwire, SD/MMC, SPI, SSI, SSP, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 80
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 136K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-LBGA
• Lead Free Status / Rohs Status: Details
• Other names: 935293795551

NXP Semiconductors
<Document ID>
User manual
Table 285. Address mapping
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.
14
1
1
1
1
1
1
1
1
1
1
32 bit external bus low-power SDRAM address mapping (Bank, Row, Column)
1
1
1
1
1
1
1
1
1
1
1
1
1
•
•
•
•
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
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
11:9 8:7
001
001
010
010
010
011
011
011
100
100
000
000
001
001
001
010
010
010
011
011
011
100
100
All information provided in this document is subject to legal disclaimers.
01
10
00
01
10
00
01
10
00
01
00
01
00
01
10
00
01
10
00
01
10
00
01
Description
64 Mb (4Mx16), 4 banks, row length = 12, column length = 8
64 Mb (2Mx32), 4 banks, row length = 11, column length = 8
128 Mb (16Mx8), 4 banks, row length = 12, column length = 10
128 Mb (8Mx16), 4 banks, row length = 12, column length = 9
128 Mb (4Mx32), 4 banks, row length = 12, column length = 8
256 Mb (32Mx8), 4 banks, row length = 13, column length = 10
256 Mb (16Mx16), 4 banks, row length = 13, column length = 9
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
16 Mb (2Mx8), 2 banks, row length = 11, column length = 9
16 Mb (1Mx16), 2 banks, row length = 11, column length = 8
64 Mb (8Mx8), 4 banks, row length = 12, column length = 9
64 Mb (4Mx16), 4 banks, row length = 12, column length = 8
64 Mb (2Mx32), 4 banks, row length = 11, column length = 8
128 Mb (16Mx8), 4 banks, row length = 12, column length = 10
128 Mb (8Mx16), 4 banks, row length = 12, column length = 9
128 Mb (4Mx32), 4 banks, row length = 12, column length = 8
256 Mb (32Mx8), 4 banks, row length = 13, column length = 10
256 Mb (16Mx16), 4 banks, row length = 13, column length = 9
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. 00.13 — 20 July 2011
Chapter 19: LPC18xx External Memory Controller (EMC)
UM10430
© NXP B.V. 2011. All rights reserved.
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