LPC2478 NXP Semiconductors, LPC2478 Datasheet - Page 64

• Manufacturer Part Number: LPC2478
• Description: NXP Semiconductors designed the LPC2478 microcontroller, powered by theARM7TDMI-S core, to be a highly integrated microcontroller for a wide range ofapplications that require advanced communications and high quality graphic displays
• Manufacturer: NXP Semiconductors

Table 15.
C
Symbol
Common to read and write cycles
t
Read cycle parameters
t
t
t
t
t
t
t
t
t
Write cycle parameters
t
t
t
t
t
t
t
CSLAV
OELAV
CSLOEL
am
h(D)
CSHOEH
OEHANV
OELOEH
BLSLAV
CSHBLSH
CSLWEL
CSLBLSL
WELDV
CSLDV
WELWEH
BLSLBLSH
WEHANV
L
= 30 pF, T
Parameter
CS LOW to address valid
time
OE LOW to address valid
time
CS LOW to OE LOW time
memory access time
data input hold time
CS HIGH to OE HIGH time
OE HIGH to address invalid
time
OE LOW to OE HIGH time
BLS LOW to address valid
time
CS HIGH to BLS HIGH time
CS LOW to WE LOW time
CS LOW to BLS LOW time
WE LOW to data valid time
CS LOW to data valid time
WE LOW to WE HIGH time
BLS LOW to BLS HIGH
time
WE HIGH to address invalid
time
Dynamic characteristics: Static external memory interface
amb
11.5 Static external memory interface
= 40 C to 85 C, V
[1][2]
[1][6]
[1]
DD(DCDC)(3V3)
Conditions
= V
DD(3V3)
[3][4]
[5]
[3]
[3]
[3]
= 3.0 V to 3.6 V
Min
0.29
0.29
0.78 + T
(WAITRD  WAITOEN + 1) 
T
0
0.49
0.20
0.59 + (WAITRD 
WAITOEN + 1)  T
0.39
0.88
0.88 + T
WAITWEN)
0.88
0.68
0
0.78 + T
(WAITWR  WAITWEN + 1)
0.88 + T
(WAITWR  WAITWEN + 3)
0 + T
cy(CCLK)
cy(CCLK)
 12.70
cy(CCLK)
cy(CCLK)
cy(CCLK)
cy(CCLK)
 WAITOEN 0 + T
 (1 +


cy(CCLK)
Typ
0.20
0.20
(WAITRD  WAITOEN + 1) 
T
-
0
0.20
0 + (WAITRD  WAITOEN +
1)  T
0
0.49
0.10 + T
WAITWEN)
0.49
2.54
2.64
0 + T
WAITWEN + 1)
0 + T
WAITWEN + 3)
0.20 + T
cy(CCLK)
cy(CCLK)
cy(CCLK)
cy(CCLK)
cy(CCLK)
cy(CCLK)
cy(CCLK)
 9.57
 WAITOEN
 (WAITWR 
 (WAITWR 
 (1 +
2.54
2.54
0.49 + T
2.44
2.54
WAITWEN)
(WAITWR  WAITWEN + 1)
(WAITWR  WAITWEN + 3)
Max
(WAITRD  WAITOEN + 1) 
T
-
0.20
0.10 + (WAITRD 
WAITOEN + 1)  T
0.68
0.20 + T
0.98
5.86
4.79
0.10 + T
0.59 + T
2.74 + T
cy(CCLK)
cy(CCLK)
cy(CCLK)
cy(CCLK)
cy(CCLK)
cy(CCLK)
 8.11
 WAITOEN
 (1 +


cy(CCLK)
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns