dsp56001 Freescale Semiconductor, Inc, dsp56001 Datasheet - Page 33

• Manufacturer Part Number: dsp56001
• Description: Available In An 88 Pin Ceramic Through-hole Package.
• Manufacturer: Freescale Semiconductor, Inc

DSP56001
Num
127
128
129
130
131
132
133
134
135
136
Address Valid to
RD deassertion
Input Data Hold Time to RD
Deassertion
RD Assertion Width
Address Valid to
Input Data Valid
Address Valid to RD Assertion
RD Assertion to
Input Data Valid
WR Deassertion to RD Assertion
RD Deassertion to RD Assertion
WR Deassertion to
WR Assertion
RD Deassertion to
WR Assertion
AC Electrical Characteristics - External Bus Asynchronous Timing
Notes:
1. With no external access from the DSP.
2. During external read or write access.
3. During external read-modify-write access.
4. During the STOP mode the external bus will not be released and BG will not go low. However,
5. During the WAIT mode the BR/BG circuits remain active.
6. Typical values at 5V are: at 20.5 MHz and WS=0,
released while the DSP is in the stop state and BG will remain low.
if the bus is released (BG = 0) and the STOP instruction is executed while BG = 0 then the bus will remain
Characteristics
DSP56001 Electrical Characteristics
WS = 0
WS > 0
WS = 0
WS > 0
WS > 0
WS = 0
WS=0
WS>0
WS=0
WS=0
WS>0
WS>0
at 20.5 MHz and WS>0,
at 27
at 27
at 33
at 33
cyc+tch-15
cyc+tch-10
cyc)+tcl-8
((WS+1)
((WS+1)*
cyc+tcl-8
MHz and WS=0,
MHz and WS>0,
MHz and WS=0,
MHz and WS>0,
cyc-15
cyc-10
cyc-15
cyc-10
cyc)-9
cyc-9
Min
tcl-9
—
—
—
—
0
20.5 MHz
(Continued)
*
cyc)+tcl-18
cyc+tcl-18
((WS+1)
((WS+1)*
cyc)-14
cyc-14
Max
tcl+5
—
—
—
—
—
—
—
—
—
—
—
Min =
*
Min =
Min =
Min =
Min =
Min = WS
cyc+tch-12
cyc)+tcl-6
cyc+tch-8
((WS+1)
((WS+1)*
cyc+tcl-6
cyc-12
cyc-12
cyc)-7
cyc-7
cyc-8
cyc-8
Min
tcl-7
—
—
—
—
WS
WS
0
27 MHz
*
cyc+tcl-2.5
*
*
tcl-2.5
*
cyc+tcl-4
cyc+tcl-3
tcl-4
tcl-3
cyc)+tcl-14
cyc+tcl-14
((WS+1)
((WS+1)*
cyc)-11
cyc-11
Max
tcl+5
—
—
—
—
—
—
—
—
—
—
—
*
cyc+tch-10
cyc)+tcl-6
((WS+1)
((WS+1)*
cyc+tcl-6
cyc+tch-
cyc)-5.5
cyc-5.5
cyc-6.5
cyc-6.5
cyc-10
cyc-10
tcl-5.5
Min
6.5
—
—
—
—
0
33 MHz
*
cyc)+tcl-11
cyc+tcl-11
((WS+1)
((WS+1)*
cyc)-9
cyc-9
Max
tcl+5
MOTOROLA
—
—
—
—
—
—
—
—
—
—
—
*
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
33