ADSP-2191MBSTZ-140 Analog Devices Inc, ADSP-2191MBSTZ-140 Datasheet - Page 24

• Manufacturer Part Number: ADSP-2191MBSTZ-140
• Description: IC,DSP,16-BIT,CMOS,QFP,144PIN,PLASTIC
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2191MBSTZ-140

• Interface: Host Interface, SPI, SSP, UART
• Clock Rate: 140MHz
• Non-volatile Memory: External
• On-chip Ram: 160kB
• Voltage - I/o: 3.00V, 3.30V
• Voltage - Core: 2.50V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Device Core Size: 16b
• Clock Freq (max): 140MHz
• Mips: 140
• Device Input Clock Speed: 140MHz
• Ram Size: 160KB
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (min): 2.37/2.97V
• Operating Supply Voltage (max): 2.63/3.6V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 144
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ADSP-2191MBSTZ140

ADSP-2191M
External Port Bus Request and Grant Cycle Timing
Table 14
bus grant operations.
Table 14. External Port Bus Request and Grant Cycle Timing
1
2
t
These are timing parameters that are based on worst-case operating conditions.
Parameter
Switching Characteristics
t
t
t
t
t
t
Timing Requirements
t
t
HCLK
SD
SE
DBG
EBG
DBH
EBH
BS
BH
is the peripheral clock period.
and
CLKOUT
MS3--0
A21–0
IOMS
BMS
BGH
1, 2
Figure 13
WR
BR
RD
BG
CLKOUT High to xMS, Address, and RD/WR Disable
CLKOUT Low to xMS, Address, and RD/WR Enable
CLKOUT High to BG Asserted Setup
CLKOUT High to BG Deasserted Hold Time
CLKOUT High to BGH Asserted Setup
CLKOUT High to BGH Deasserted Hold Time
BR Asserted to CLKOUT High Setup
CLKOUT High to BR Deasserted Hold Time
describe external port bus request and
t
BS
Figure 13. External Port Bus Request and Grant Cycle Timing
t
BH
–24–
t
t
t
t
t
SD
SD
SD
DBG
DBH
Min
0
0
0
0
0
4.6
0
Max
0.5t
4
4
4
4
4
t
t
EBG
HCLK
EBH
+1
t
t
t
SE
SE
SE
REV. A
Unit
ns
ns
ns
ns
ns
ns
ns
ns