ADSP-2173BST-80 Analog Devices Inc, ADSP-2173BST-80 Datasheet - Page 33

• 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

REV. A
ADSP-2173
Parameter
Clock Signals
t
a frequency equal to half the instruction rate; a 10.0 MHz input
clock (which is equivalent to 100 ns) yields a 50 ns processor cycle
(equivalent to 20 MHz). t
period should be substituted for all relevant timing parameters
to obtain specification value.
Example: t
Timing Requirement:
t
t
t
Switching Characteristic:
t
t
t
Control Signals
Timing Requirement:
t
NOTE
1
CK
CKI
CKIL
CKIH
CKL
CKH
CKOH
RSP
Applies after power-up sequence is complete. Internal phase lock loop requires no more than 2000 CLKIN cycles assuming stable CLKIN (not including crystal
oscillator start-up time).
is defined as 0.5 t
CKH
= 0.5t
CLKIN Period
CLKIN Width Low
CLKIN Width High
CLKOUT Width Low
CLKOUT Width High
CLKIN High to CLKOUT High
RESET Width Low
CKI.
CK
– 10 ns = 0.5 (50 ns) – 10 ns = 15 ns.
The ADSP-2173 uses an input clock with
CK
CLKOUT
values within the range of 0.5 t
CLKIN
Figure 24. Clock Signals
CKI
t
CKIL
t
CKI
–33–
t
CKL
ADSP-2171/ADSP-2172/ADSP-2173
Min
100
20
20
0.5t
0.5t
0
5t
CK
CK
CK
1
– 10
– 10
t
t
CKOH
CKH
t
CKIH
Max
160
25
ns
ns
ns
ns
ns
ns
ns
Unit