ADSP-2181BS-115 Analog Devices Inc, ADSP-2181BS-115 Datasheet - Page 20

• Manufacturer Part Number: ADSP-2181BS-115
• Description: IC DSP CONTROLLER 16BIT 128PQFP
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2181BS-115

• Rohs Status: RoHS non-compliant
• Interface: Synchronous Serial Port (SSP)
• Clock Rate: 28.8MHz
• Non-volatile Memory: External
• On-chip Ram: 80kB
• Voltage - I/o: 5.00V
• Voltage - Core: 5.00V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP

ADSP-2181
Parameter
IDMA Address Latch
Timing Requirements:
t
t
t
t
t
NOTES
1
2
3
Start of Address Latch = IS Low and IAL High.
End of Address Latch = IS High or IAL Low.
Start of Write or Read = IS Low and IWR Low or IRD Low.
IALP
IASU
IAH
IKA
IALS
Duration of Address Latch
IAD15–0 Address Setup before Address Latch End
IAD15–0 Address Hold after Address Latch End
IACK Low before Start of Address Latch
Start of Write or Read after Address Latch End
IAD15–0
IRD
IACK
IWR
IAL
OR
IS
1, 2
t
Figure 14. IDMA Address Latch
IKA
1
t
IALP
t
IASU
–20–
2, 3
2
2
t
t
IALS
IAH
Min
10
5
2
0
3
Max
REV. D
Unit
ns
ns
ns
ns
ns