OMAP-L137
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
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6.11.3 EMIFB Electrical Data/Timing
Table 6-28. EMIFB SDRAM Interface Timing Requirements
CVDD = 1.3 V
(1)
CVDD = 1.2V
(2)
UN
NO.
IT
MIN
MAX
MIN
MAX
Input setup time, read data valid on EMB_D[31:0] before
19
t
(DV-CLKH)
0.59
0.8
ns
EMB_CLK rising
Input hold time, read data valid on EMB_D[31:0] after
20
t
h(CLKH-DIV)
1.25
1.5
ns
EMB_CLK rising
(1)
Commercial (default), Industrial and Extended temperature range rated devices for 456 MHz max CPU operating frequency as
applicable to the device
(2)
Commercial (default), Industrial, Extended and Automotive temperature range rated devices for 400/375/300/266/200 MHz max CPU
operating frequencies as applicable to the device
Table 6-29. EMIFB SDRAM Interface Switching Characteristics for Commercial (Default) Temperature
Range
CVDD = 1.3 V
(1)
CVDD = 1.2V
(2)
UN
NO.
PARAMETER
IT
MIN
MAX
MIN
MAX
1
t
c(CLK)
Cycle time, EMIF clock EMB_CLK
6.579
7.5
ns
2
t
w(CLK)
Pulse width, EMIF clock EMB_CLK high or low
2.63
3
ns
3
t
d(CLKH-CSV)
Delay time, EMB_CLK rising to EMB_CS[0] valid
4.25
5.1
ns
4
t
oh(CLKH-CSIV)
Output hold time, EMB_CLK rising to EMB_CS[0] invalid
1.1
1.1
ns
5
t
d(CLKH-DQMV)
Delay time, EMB_CLK rising to EMB_WE_DQM[3:0] valid
4.25
5.1
ns
Output hold time, EMB_CLK rising to
6
t
oh(CLKH-DQMIV)
1.1
1.1
ns
EMB_WE_DQM[3:0] invalid
Delay time, EMB_CLK rising to EMB_A[12:0] and
7
t
d(CLKH-AV)
4.25
5.1
ns
EMB_BA[1:0] valid
Output hold time, EMB_CLK rising to EMB_A[12:0] and
8
t
oh(CLKH-AIV)
1.1
1.1
ns
EMB_BA[1:0] invalid
9
t
d(CLKH-DV)
Delay time, EMB_CLK rising to EMB_D[31:0] valid
4.25
5.1
ns
Output hold time, EMB_CLK rising to EMB_D[31:0]
10
t
oh(CLKH-DIV)
1.1
1.1
ns
invalid
11
t
d(CLKH-RASV)
Delay time, EMB_CLK rising to EMB_RAS valid
4.25
5.1
ns
12
t
oh(CLKH-RASIV)
Output hold time, EMB_CLK rising to EMB_RAS invalid
1.1
1.1
ns
13
t
d(CLKH-CASV)
Delay time, EMB_CLK rising to EMB_CAS valid
4.25
5.1
ns
14
t
oh(CLKH-CASIV)
Output hold time, EMB_CLK rising to EMB_CAS invalid
1.1
1.1
ns
15
t
d(CLKH-WEV)
Delay time, EMB_CLK rising to EMB_WE valid
4.25
5.1
ns
16
t
oh(CLKH-WEIV)
Output hold time, EMB_CLK rising to EMB_WE invalid
1.1
1.1
ns
17
t
dis(CLKH-DHZ)
Delay time, EMB_CLK rising to EMB_D[31:0] tri-stated
4.25
5.1
ns
Output hold time, EMB_CLK rising to EMB_D[31:0]
18
t
(CLKH-DLZ)
1.1
1.1
ns
driving
(1)
Commercial (default) temperature range rated devices for 456 MHz max CPU operating frequency as applicable to the device
(2)
Commercial (default) temperature range rated devices for 400/375/300/266/200 MHz max CPU operating frequencies as applicable to
the device
100
Peripheral Information and Electrical Specifications
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