ADSP-2186LBCA-160 Analog Devices Inc, ADSP-2186LBCA-160 Datasheet - Page 31

• Manufacturer Part Number: ADSP-2186LBCA-160
• Description: IC DSP 16BIT 80MHZ 144CSPBGA
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2186LBCA-160

• Rohs Status: RoHS non-compliant
• Interface: Host Interface, Serial Port
• Clock Rate: 40MHz
• Non-volatile Memory: External
• On-chip Ram: 40kB
• Voltage - I/o: 3.30V
• Voltage - Core: 3.30V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 144-CSPBGA

IDMA Write, Short Write Cycle
Table 21. IDMA Write, Short Write Cycle
1
2
3
4
5
Parameter
Timing Requirements:
t
t
t
t
Switching Characteristic:
t
Start of Write = IS Low and IWR Low.
End of Write = IS High or IWR High.
If Write Pulse ends before IACK Low, use specifications t
If Write Pulse ends after IACK Low, use specifications t
For the ADSP-2185L, and the ADSP-2187L, this specification is 4 ns min., and 15 ns max.
IKW
IWP
IDSU
IDH
IKHW
IACK Low Before Start of Write
Duration of Write
IAD15–0 Data Setup Before End of Write
IAD15–0 Data Hold After End of Write
Start of Write to IACK High
IAD15–0
IACK
1, 2
IWR
IS
5
IKSU
1
IDSU
, t
t
, t
IKH
Figure 23. IDMA Write, Short Write Cycle
IKW
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Rev. C | Page 31 of 48 | January 2008
IDH
.
.
2, 3, 4
2, 3, 4
t
IWP
t
t
IKHW
IDSU
DATA
t
IDH
Min
0
15
5
2
Max
17
Unit
ns
ns
ns
ns
ns