MCIMX255AJM4AR2 Freescale Semiconductor, MCIMX255AJM4AR2 Datasheet - Page 77

• Manufacturer Part Number: MCIMX255AJM4AR2
• Description: Processors - Application Specialized IMX25 1.2 AUTO
• Manufacturer: Freescale Semiconductor

Specifications of MCIMX255AJM4AR2

• Core: ARM926EJ-S
• Processor Series: MCIMX25
• Maximum Clock Frequency: 400 MHz
• Instruction / Data Cache Memory: 16 KB
• Data Ram Size: 128 KB
• Operating Supply Voltage: 1.15 V to 1.52 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: MAPBGA-400
• Interface Type: USB
• Memory Type: DDR2
• Minimum Operating Temperature: - 40 C

Freescale Semiconductor
WE32A(
Ref No.
WE35A
WE40A
WE41A
(muxed
(muxed
(muxed
muxed
WE33
WE34
WE35
WE36
WE37
WE38
WE39
WE40
WE41
WE42
WE43
WE44
WE45
WE46
WE47
WE48
A/D)
A/D)
A/D)
A/D
Table 57. WEIM Asynchronous Timing Parameters Relative to Chip Select Table (continued)
CS[x] Valid to EB[y] Valid (Read
CS[x] Valid to Output Data Valid
CS[x] Valid to Output Data Valid WE16 – WE6 + (LBN + LBA +
CS[x] Invalid to DTACK invalid
CS[x] valid to Address Invalid
DTACK Valid to CS[x] Invalid
EB[y] Invalid to CS[x] Invalid
Output Data Invalid to CS[x]
EB[y] Invalid to CS[x] Invalid
LBA Invalid to CS[x] Invalid
RW Invalid to CS[x] Invalid
OE Invalid to CS[x] Invalid
CS[x] Valid to LBA Invalid
CS[x] Invalid to Input Data
CS[x] Valid to EB[y] Valid
Input Data Valid to CS[x]
CS[x] Valid to LBA Valid
CS[x] Valid to OE Valid
CS[x] Valid to RW Valid
CS[x] Valid to OE Valid
(Read access)
(Write access)
(Write access)
Parameter
access)
Invalid
Invalid
invalid
i.MX25 Applications Processor for Automotive Products, Rev. 9
WE7 – WE13 + (EBRN – CSN)
WE14 – WE6 + (LBN + LBA + 1
WE12 – WE6 + (EBWA – CSA)
WE7 – WE13 + (EBWN – CSN)
MAXCO – MAXCSO + MAXDTI
WE4 – WE7 + (LBN + LBA + 1
WE12 – WE6 + (EBRA – CSA)
WE10 – WE6 + (OEA + LBN +
MAXCO – MAXCSO + MAXDI
WE7 – WE11 + (OEN – CSN)
WE10 – WE6 + (OEA – CSA)
WE7 – WE9 + (RWN – CSN)
WE14 – WE6 + (LBA – CSA)
WE8 – WE6 + (RWA – CSA)
Synchronous Measured
LBA + LAH + 1 – CSA)
WE7 – WE15 – CSN
WE16 – WE6 – CSA
WE17 – WE7 – CSN
Determination By
LAH + 1 – CSA)
Parameters
– CSA
– CSA)
0
0
2
)
1
–3 + (LBN + LBA +
+ LBA + LAH + 1 –
–3 + (LBN + LBA +
–3 + (OEA + LBN
MAXCSO
MAXCSO
MAXCO
MAXCO
MAXDTI
1 – CSA)
1 – CSA)
MAXDI
CSA)
Min
—
—
—
—
—
—
—
—
—
—
—
—
—
0
0
6
6 –
8
7
7
9
–
+
+
3 + (LBN + LBA + 1 –
–3 + (EBWN – CSN)
supported by SoC)
3 + (EBRA
3 – (EBRN
3 + (EBWA – CSA)
3 + (OEA + LBN +
3 + (LBN + LBA +
3 + (RWA – CSA)
3 + (OEA – CSA)
3 – (OEN – CSN)
LBA + LAH + 1 –
3 + (LBA – CSA)
3 – (RWN_CSN)
LAH + 1 – CSA)
(If 133 MHz is
3 – CSN
3 – CSA
3 – CSN
CSA)
CSA)
Max
—
—
—
—
—
4
5
– CSA)
– CSN)
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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