DSPB56364FU100 Freescale Semiconductor, DSPB56364FU100 Datasheet - Page 36

• Manufacturer Part Number: DSPB56364FU100
• Manufacturer: Freescale Semiconductor

Specifications of DSPB56364FU100

• Device Core Size: 24b
• Format: Fixed Point
• Clock Freq (max): 100MHz
• Mips: 100
• Device Input Clock Speed: 100MHz
• Ram Size: 9KB
• Program Memory Size: 24KB
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3.14V
• Operating Supply Voltage (max): 3.46V
• Operating Temp Range: -40C to 105C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 100
• Package Type: LQFP
• Lead Free Status / Rohs Status: Not Compliant

External Memory Expansion Port (Port A)
3-20
No.
131 Page mode cycle time for two consecutive
132 CAS assertion to data valid (read)
133 Column address valid to data valid (read)
134 CAS deassertion to data not valid (read hold
135 Last CAS assertion to RAS deassertion
136 Previous CAS deassertion to RAS
137 CAS assertion pulse width
138 Last CAS deassertion to RAS deassertion
139 CAS deassertion pulse width
140 Column address valid to CAS assertion
141 CAS assertion to column address not valid
142 Last column address valid to RAS
143 WR deassertion to CAS assertion
144 CAS deassertion to WR assertion
145 CAS assertion to WR deassertion
146 WR assertion pulse width
accesses of the same direction
Page mode cycle time for mixed (read and
write) accesses
time)
deassertion
deassertion
• BRW[1:0] = 00
• BRW[1:0] = 01
• BRW[1:0] = 10
• BRW[1:0] = 11
Characteristics
Table 3-10 DRAM Page Mode Timings, Two Wait States
DSP56364 Technical Data, Rev. 4.1
6
Symbol
t
t
t
t
RHCP
t
t
t
t
t
t
t
t
WCH
t
t
CAC
RSH
CAS
CRP
t
ASC
CAH
RCS
RCH
t
OFF
RAL
WP
PC
CP
AA
1.75 × T
3.25 × T
1.25 × T
1.75 × T
1.25 × T
1.5 × T
1.5 × T
2.5 × T
2.5 × T
1.5 × T
2.0 × T
3.5 × T
4.5 × T
6.5 × T
0.5 × T
1.5 × T
2.5 × T
Expression
3 × T
1.25 × T
T
2 × T
C
− 4.0
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
− 4.0
C
− 7.5
− 6.5
− 7.5
− 6.5
− 4.0
− 6.0
− 6.0
− 6.0
− 6.0
− 3.7
− 4.2
− 4.5
− 4.0
− 4.0
− 4.0
− 4.0
− 3.8
C
5
45.4
41.1
22.5
45.2
18.7
24.4
47.2
62.4
92.8
14.9
11.2
22.5
41.5
15.1
18.5
33.5
Min
0.0
3.9
—
—
—
—
66 MHz
1, 2, 3, 4
Max
15.2
30.4
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Freescale Semiconductor
37.5
34.4
17.9
36.6
14.8
19.0
37.8
50.3
75.3
11.6
17.9
33.5
11.8
14.6
26.8
Min
0.0
8.5
2.6
—
—
—
—
80 MHz
Max
12.3
24.8
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns