DSP56321VF275 Freescale, DSP56321VF275 Datasheet - Page 33

• Manufacturer Part Number: DSP56321VF275
• Manufacturer: Freescale

Specifications of DSP56321VF275

• Device Core Size: 24b
• Format: Fixed Point
• Clock Freq (max): 275MHz
• Mips: 275
• Device Input Clock Speed: 275MHz
• Ram Size: 576KB
• Operating Supply Voltage (typ): 1.6/3.3V
• Operating Supply Voltage (min): 1.5/3/3/3/3/3/3V
• Operating Temp Range: -40C to 100C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 196
• Package Type: MA-BGA
• Lead Free Status / RoHS Status: Not Compliant

2.4.5.2 Asynchronous Bus Arbitration Timings
Freescale Semiconductor
250
251
Notes:
No.
BB assertion window from BG input
deassertion.
Delay from BB assertion to BG assertion
1.
2.
Bit 13 in the Operating Mode Register must be set to enable Asynchronous Arbitration mode.
To guarantee timings 250 and 251, it is recommended that you assert non-overlapping BG inputs to different DSP56300
devices (on the same bus), as shown in Figure 2-12, where BG1 is the BG signal for one DSP56300 device while BG2 is the
BG signal for a second DSP56300 device.
Note: Address lines A[0–17] hold their state after a
read or write operation. AA[0–3] do not hold their
state after a read or write operation.
Characteristics
AA[0–3]
D[0–23]
A[0–17]
WR
RD
TA
Table 2-9.
Figure 2-11.
DSP56321 Technical Data, Rev. 11
114
Expression
101
2.5 × Tc + 5
2 × Tc + 5
Asynchronous Bus Timings
SRAM Write Access
107
Min
—
200 MHz
15
100
Max
17.5
—
102
108
Min
14.1
—
220 MHz
118
Max
16.4
Data
—
Out
Min
13.3
—
240 MHz
AC Electrical Characteristics
103
Max
15.4
119
109
—
12.27
Min
—
275 Mhz
Max
14.1
—
Uni
2-13
ns
ns
t