ADSP-2105BP-80 Analog Devices Inc, ADSP-2105BP-80 Datasheet - Page 46

• Manufacturer Part Number: ADSP-2105BP-80
• Description: IC,DSP,16-BIT,CMOS,LDCC,68PIN,PLASTIC
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2105BP-80

• Rohs Status: RoHS non-compliant
• Interface: Synchronous Serial Port (SSP)
• Clock Rate: 20MHz
• Non-volatile Memory: External
• On-chip Ram: 3kB
• Voltage - I/o: 5.00V
• Voltage - Core: 5.00V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Package: 68PLCC
• Numeric And Arithmetic Format: Fixed-Point
• Maximum Speed: 20 MHz
• Ram Size: 1.5 KB
• Device Million Instructions Per Second: 20 MIPS

ADSP-21xx
TIMING PARAMETERS (ADSP-2103/2162/2164)
INTERRUPTS & FLAGS
Parameter
Timing Requirement:
t
t
Switching Characteristic:
t
t
NOTES
1
2
3
following cycle. (Refer to the “Interrupt Controller” section in Chapter 3, Program Control, of the ADSP-2100 Family User’s Manual for further information on
IRQx=IRQ0, IRQ1, and IRQ2.
If IRQx and FI inputs meet t
Edge-sensitive interrupts require pulse widths greater than 10 ns. Level-sensitive interrupts must be held low until serviced.
IFS
IFH
FOH
FOD
interrupt servicing.)
IRQx
IRQx
FO Hold after CLKOUT High
FO Delay from CLKOUT High
1
1
or FI Setup before CLKOUT Low
or FI Hold after CLKOUT High
IFS
and t
IFH
setup/hold requirements, they will be recognized during the current clock cycle; otherwise they will be recognized during the
OUTPUT(S)
CLKOUT
IRQx
FLAG
FI
2, 3
Figure 40. Interrupts & Flags
2, 3
t
FOH
t
FOD
–46–
10.24 MHz
Min
44.4
24.4
0
t
IFH
t
Max
15
IFS
Frequency
Dependency
Min
0.25t
0.25t
CK
CK
+ 20
Max
Unit
ns
ns
ns
ns
REV. B