ADSP-2186MBST-266 Analog Devices Inc, ADSP-2186MBST-266 Datasheet - Page 33

• Manufacturer Part Number: ADSP-2186MBST-266
• Description: IC DSP CONTROLLER 16BIT 100LQFP
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2186MBST-266

• Rohs Status: RoHS non-compliant
• Interface: Host Interface, Serial Port
• Clock Rate: 66MHz
• Non-volatile Memory: External
• On-chip Ram: 40kB
• Voltage - I/o: 3.30V
• Voltage - Core: 2.50V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP

Parameter
IDMA Read, Short Read Cycle
Timing Requirements:
t
t
t
Switching Characteristics:
t
t
t
t
t
NOTES
1
2
3
4
5
6
Short Read Only must be disabled in the IDMA Overlay memory mapped register.
Consider using the Short Read Only mode, instead, because Short Read mode is not applicable at high clock frequencies.
Start of Read = IS Low and IRD Low.
DM Read or first half of PM Read.
Second half of PM Read.
End of Read = IS High or IRD High.
IKR
IRP1
IRP2
IKHR
IKDH
IKDD
IRDE
IRDV
IACK Low before Start of Read
Duration of Read (DM/PM1)
Duration of Read (PM2)
IACK High after Start of Read
IAD15–0 Data Hold after End of Read
IAD15–0 Data Disabled after End of Read
IAD15–0 Previous Data Enabled after Start of Read
IAD15–0 Previous Data Valid after Start of Read
1, 2
IAD15–0
IACK
5
IRD
IS
4
3
3
t
IKR
t
IRDE
6
6
t
IKHR
t
IRDV
t
IRP
PREVIOUS
DATA
t
IKDD
Min
0
10
10
0
0
t
IKDH
ADSP-2186M
Max
2t
t
10
10
10
CK
CK
– 5
– 5
Unit
ns
ns
ns
ns
ns
ns
ns
ns