dsp56001 Freescale Semiconductor, Inc, dsp56001 Datasheet - Page 51

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

DSP56001
Figure 7 illustrates how to connect a 20 ns static RAM with a 33
MHz. DSP56001. The important parameters are T
T
to minimize decoding delays. This example maps the static RAM
DOE
DSP56001
27 MHZ
< 10 ns, and T
ADDRESS
DATA
WR
RD
DS
PS
AA
= 20 ns maximum. A 7.5 ns PLD is used
5
6
7
8
9
4
7.5ns PLD
A12
A13
A14
A15
DS
PS
Figure B-7. 27 MHz DSP56001 with 20 ns SRAM
16L8-7
12
RAM_ENABLE
DW
< 10 ns,
into the ranges X:$1000-1FFF and Y:$1000-1FFF. The PLD
equation is:
RAM_ENABLE = PS & !DS & !A15 & !A14 & !A13 & !A12
(8K X 8) 20 ns
ADDRESS
E
DATA
OE
WR
CS
MCM6264D
MOTOROLA
B-51