ADSP-2105BP-80 Analog Devices Inc, ADSP-2105BP-80 Datasheet - Page 38

• 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-2111)
HOST INTERFACE PORT
Separate Data & Address (HMD1 = 0)
Read/Write Strobe & Data Strobe (HMD0 = 1)
Parameter
Timing Requirement:
t
t
t
t
t
Switching Characteristic:
t
t
t
t
t
t
NOTES
1
2
3
Start of Write or Read = HDS Low and HSEL Low.
End of Write or Read = HDS High or HSEL High.
Read or Write Pulse Width = HDS Low and HSEL Low.
HSU
HDSU
HWDH
HH
HRWP
HSHK
HKH
HDE
HDD
HRDH
HRDD
HA2-0, HRW Setup before Start of Write or Read
Data Setup before End of Write
Data Hold after End of Write
HA2-0, HRW Hold after End of Write or Read
Read or Write Pulse Width
HACK Low after Start of Write or Read
HACK Hold after End of Write or Read
Data Enabled after Start of Read
Data Valid after Start of Read
Data Hold after End of Read
Data Disabled after End of Read
3
2
2
1
2
2
1
1
2
2
1
–38–
13.0 MHz
Min Max
8
8
3
3
30
0
0
0
0
20
20
23
10
16.67 MHz
Min Max
8
8
3
3
30
0
0
0
0
20
20
23
10
20 MHz
Min Max
8
8
3
3
30
0
0
0
0
20
20
23
10
No Frequency
Dependency
REV. B
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns