lpc1778 NXP Semiconductors, lpc1778 Datasheet - Page 84

• Manufacturer Part Number: lpc1778
• Description: 32-bit Arm Cortex-m3 Microcontroller; Up To 512 Kb Flash And 96 Kb Sram; Usb Device/host/otg; Ethernet; Lcd; Emc
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 14.
C
LPC178x_7x
Objective data sheet
Symbol
Common
t
t
t
t
t
t
t
t
t
t
t
t
Read cycle parameters
t
t
Write cycle parameters
t
t
d(SV)
h(S)
d(RASV)
h(RAS)
d(CASV)
h(CAS)
d(WV)
h(W)
d(GV)
h(G)
d(AV)
h(A)
su(D)
h(D)
d(QV)
h(Q)
Fig 16. External memory read access
L
= 30 pF, T
Dynamic characteristics: Dynamic external memory interface
amb
Parameter
chip select valid delay time
chip select hold time
row address strobe valid delay time
row address strobe hold time
column address strobe valid delay time
column address strobe hold time
write valid delay time
write hold time
output enable valid delay time
output enable hold time
address valid delay time
address hold time
data input set-up time
data input hold time
data output valid delay time
data output hold time
addr
data
BLS
OE
CS
=
−
40
°
C to 85
t
CSLOEL
°
C, V
DD(DCDC)(3V3)
t
CSLAV
t
t
BLSLAV
OELAV
All information provided in this document is subject to legal disclaimers.
t
am
Rev. 00.04 — 8 July 2010
= V
DD(3V3)
= 3.0 V to 3.6 V, AHB clock = 1 MHz
Conditions
t
OELOEH
32-bit ARM Cortex-M3 microcontroller
t
OEHANV
t
CSHOEH
t
h(D)
Min
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LPC178x/7x
t
CSHBLSH
002aad955
© NXP B.V. 2010. All rights reserved.
Max
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84 of 112
Unit
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