ADSP-2173BST-80 Analog Devices Inc, ADSP-2173BST-80 Datasheet - Page 32

• Manufacturer Part Number: ADSP-2173BST-80
• Description: IC DSP CONTROLLER 16BIT 128TQFP
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2173BST-80

• Rohs Status: RoHS non-compliant
• Interface: Host Interface, Serial Port
• Clock Rate: 20MHz
• Non-volatile Memory: External
• On-chip Ram: 10kB
• Voltage - I/o: 3.30V
• Voltage - Core: 3.30V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Device Core Size: 16b
• Architecture: Enhanced Harvard
• Format: Fixed Point
• Clock Freq (max): 20MHz
• Mips: 20
• Device Input Clock Speed: 20MHz
• Ram Size: 10KB
• Program Memory Size: 24KB
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 128
• Package Type: TQFP
• Lead Free Status / Rohs Status: Not Compliant

ADSP-2171/ADSP-2172/ADSP-2173
ADSP-2173 TIMING PARAMETERS
GENERAL NOTES
Use the exact timing information given. Do not attempt to de-
rive parameters from the addition or subtraction of others.
While addition or subtraction would yield meaningful results for
an individual device, the values given in this data sheet reflect
statistical variations and worst cases. Consequently, you cannot
meaningfully add up parameters to derive longer times.
TIMING NOTES
Switching characteristics specify how the processor changes its
signals. You have no control over this timing; it is dependent on
the internal design. Timing requirements apply to signals that
are controlled outside the processor, such as the data input for a
read operation.
Timing requirements guarantee that the processor operates cor-
rectly with another device. Switching characteristics tell you
what the device will do under a given circumstance. Also, use
the switching characteristics to ensure any timing requirement
of a device connected to the processor (such as memory) is
satisfied.
–32–
MEMORY REQUIREMENTS
This chart links common memory device specification names
and ADSP-2173 timing parameters for your convenience.
Parameter
Name
t
t
t
t
t
t
t
ASW
AW
WRA
DW
DH
RDD
AA
Function
A0-A13, DMS, PMS
Setup before WR Low
A0-A13, DMS, PMS
A0-A13, DMS, PMS
Hold after WR Deasserted
Data Setup before WR High Data Setup Time
Data Hold after WR High
RD Low to Data Valid
A0-A13, DMS, PMS,
BMS to Data Valid
before WR Deasserted
Common
Memory Device
Specification Name
Address Setup to
Write Start
Setup Address Setup
to Write End
Address Hold Time
Data Hold Time
OE to Data Valid
Address Access Time
REV. A