ADSP-21371KSWZ-2B Analog Devices Inc, ADSP-21371KSWZ-2B Datasheet - Page 42

• Manufacturer Part Number: ADSP-21371KSWZ-2B
• Description: IC DSP 32BIT 266MHZ 208-LQFP
• Manufacturer: Analog Devices Inc
• Series: SHARC®r
• Type: Floating Pointr

Specifications of ADSP-21371KSWZ-2B

• Package / Case: 208-LQFP
• Interface: DAI, DPI
• Operating Temperature: 0°C ~ 70°C
• Clock Rate: 266MHz
• Non-volatile Memory: ROM (512 kB)
• On-chip Ram: 128kB
• Voltage - I/o: 3.30V
• Voltage - Core: 1.20V
• Mounting Type: Surface Mount
• Svhc: No SVHC (18-Jun-2010)
• Base Number: 21371
• Core Frequency Typ: 266MHz
• Dsp Type: Floating Point
• Mmac: 532
• No. Of Pins: 208
• Interface Type: SPI, UART
• Rohs Compliant: Yes
• Operating Temperature Range: 0°C To +70°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADSP-21371
TWI Controller Timing
Table 40
interface. Input Signals (SCL, SDA) are routed to the
DPI_P14–1 pins using the SRU. Therefore, the timing specifica­
tions provided below are valid at the DPI_P14–1 pins.
Table 40. Characteristics of the SDA and SCL Bus Lines for F/S-Mode TWI Bus Devices
1
Parameter
f
t
t
t
t
t
t
t
t
t
All values referred to V
SCL
HDSTA
LOW
HIGH
SUSTA
HDDAT
SUDAT
SUSTO
BUF
SP
DPI_P14-1
DPI_P14-1
SDA
SCL
and
Figure 32
SCL Clock Frequency
Hold Time (repeated) Start Condition. After This
Period, the First Clock Pulse is Generated.
Low Period of the SCL Clock
High Period of the SCL Clock
Setup Time for a Repeated Start Condition
Data Hold Time for TWI-bus Devices
Data Setup Time
Setup Time for Stop Condition
Bus Free Time Between a Stop and Start Condition
Pulse Width of Spikes Suppressed By the Input Filter n/a
S
IHmin
provide timing information for the TWI
and V
t
t
LOW
HDS TA
ILmax
levels.
t
For more information, see Electrical Characteristics on page 15.
H DDA T
Figure 32. Fast and Standard Mode Timing on the TWI Bus
t
HIGH
t
SUDA T
Rev. 0 | Page 42 of 48 | June 2007
t
SUS TA
Min
0
4.0
4.7
4.0
4.7
0
250
4.0
4.7
Sr
Standard Mode
t
HDS TA
Max
100
n/a
1
t
SP
t
Min
0
0.6
1.3
0.6
0.6
0
100
0.6
1.3
0
SUSTO
Fast Mode
P
t
Max
400
50
BUF
S
Unit
kHz
μs
μs
μs
μs
μs
ns
μs
μs
ns