LPC3240 datasheet(67/80 Pages) NXP

67 / 80 page

LPC3220_30_40_50

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Product data sheet

Rev. 2.1 — 24 June 2014

67 of 80

NXP Semiconductors

LPC3220/30/40/50

16/32-bit ARM microcontrollers

[1]

THCLK = 1/HCLK

[2]

Rsu = bit field R_SETUP[3:0] in register SLC_TAC[3:0] for reads

[3]

Rh = bit field R_HOLD[3:0] in register SLC_TAC[7:4] for reads

[4]

Rw = bit field R_WIDTH[3:0] in register SLC_TAC[11:8] for reads

[5]

Rb = bit field R_RDY[3:0] in register SLC_TAC[15:12] for reads

[6]

Wsu = bit field W_SETUP[3:0] in register SLC_TAC[19:16] for writes

[7]

Wh = bit field W_HOLD[3:0] in register SLC_TAC[23:20] for writes

[8]

Ww = bit field W_WIDTH[3:0] in register SLC_TAC[27:24] for writes

[9]

Wb = bit field W_RDY[3:0] in register SLC_TAC[31:28] for writes

tWH

WE HIGH hold time

write

[1][6][7]

-THCLK  (Wsu + Wh)

tWHR

WE HIGH to RE LOW time

write

[1][7][9]

-(THCLK  Wh) + (2  THCLK

 Wb)

-ns

tWP

WE pulse width

write

[1][8]

-THCLK  Ww

tREHRBL

RE HIGH to R/B LOW time

write

[1][3][5]

-(THCLK  Rh) + (2  THCLK 

Rb)

-ns

Table 18.

Dynamic characteristics of SLC NAND flash memory controller …continued

Tamb = 40 C to +85 C.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Fig 17.

MLC NAND flash memory write timing (writing to NAND flash)

command

tDS

tDH

tWB

FLASH_IO[7:0]

address

tDS

tDH

tALS

tALH

tDS tDH

tWP tWH

tWC

tCS

tCH

tCLS

tCLH

command

address

data

tALS

tCLH

tALS

tALH

tWP

tWP tWH

tCLS

tCS

002aae444

FLASH_CE

FLASH_CLE

FLASH_WR

FLASH_ALE

FLASH_RDY

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