參數(shù)資料
型號： SPAKDSP321VL275
廠商： Freescale Semiconductor
文件頁數(shù)： 39/84頁
文件大小： 0K
描述： IC DSP 24BIT 275MHZ 196-MAPBGA
標(biāo)準(zhǔn)包裝： 126
系列： DSP56K/Symphony
類型： 定點(diǎn)
接口： 主機(jī)接口，SSI，SCI
時(shí)鐘速率： 275MHz
非易失內(nèi)存： ROM（576 B）
芯片上RAM： 576kB
電壓 - 輸入/輸出： 3.30V
電壓 - 核心： 1.60V
工作溫度： -40°C ~ 100°C
安裝類型： 表面貼裝
封裝/外殼： 196-LBGA
供應(yīng)商設(shè)備封裝： 196-MAPBGA（15x15）
包裝： 托盤
DSP56321 Technical Data, Rev. 11
2-24
Freescale Semiconductor
Specifications
451 TXC rising edge to FST out (word-
length) low
—
12.5
8.3
—
12.5
8.3
—
12.5
8.3
—
12.5
8.3
x ck
i ck
ns
452 TXC rising edge to data out enable from
high impedance
—
12.5
8.3
—
12.5
8.3
—
12.5
8.3
—
12.5
8.3
x ck
i ck
ns
453 TXC rising edge to Transmitter 0 drive
enable assertion
—
12.5
13.5
—
12.5
13.5
—
12.5
13.5
—
12.5
13.5
x ck
i ck
ns
454 TXC rising edge to data out valid
—
12.5
8.3
—
12.5
8.3
—
12.5
8.3
—
12.5
8.3
x ck
i ck
ns
455 TXC rising edge to data out high
impedance
3
—
30.0
8.3
—
30.0
8.3
—
30.0
8.3
—
30.0
8.3
x ck
i ck
ns
456 TXC rising edge to Transmitter 0 drive
enable deassertion3
—
12.5
8.3
—
12.5
8.3
—
12.5
8.3
—
12.5
8.3
x ck
i ck
ns
457 FST input (bl, wr) setup time before
TXC falling edge2
5.0
10.0
—
5.0
10.0
—
5.0
10.0
—
5.0
10.0
—
x ck
i ck
ns
458 FST input (wl) to data out enable from
high impedance
—
15.0
8.0
—
15.0
8.0
—
15.0
8.0
—
15.0
8.0
x ck
i ck
ns
459 FST input (wl) to Transmitter 0 drive
enable assertion
—
15.0
18.0
—
15.0
18.0
—
15.0
18.0
—
15.0
18.0
x ck
i ck
ns
460 FST input (wl) setup time before TXC
falling edge
5.0
10.0
—
5.0
10.0
—
5.0
10.0
—
5.0
10.0
—
x ck
i ck
ns
461 FST input hold time after TXC falling
edge
3.8
5.0
—
3.8
5.0
—
3.8
5.0
—
3.8
5.0
—
x ck
i ck
ns
462 Flag output valid after TXC rising edge
—
12.5
8.3
—
12.5
8.3
—
12.5
8.3
—
12.5
8.3
x ck
i ck
ns
Notes:
1.
For the internal clock, the external clock cycle is defined by the instruction cycle time (timing 7 in Table 2-5 on page 2-4) and the
ESSI control register. TECCX must be ≥ TC × 3, in accordance with the note below Table 7-1 in the DSP56321 Reference
Manual. TECCI must be ≥ TC × 4, in accordance with the explanation of CRA[PSR] and the ESSI Clock Generator Functional
Block Diagram shown in Figure 7-3 of the DSP56321 Reference Manual.
2.
The word-length-relative frame sync signal waveform operates the same way as the bit-length frame sync signal waveform, but
spreads from one serial clock before the first bit clock (same as the Bit Length Frame Sync signal) until the one before last bit
clock of the first word in the frame.
3.
Periodically sampled and not 100 percent tested
4.
VCCQH = 3.3 V ± 0.3 V, VCCQL = 1.6 V ± 0.1 V; TJ = 0°C to +85°C, CL = 50 pF
5.
TXC (SCK Pin) = Transmit Clock
RXC (SC0 or SCK Pin) = Receive Clock
FST (SC2 Pin) = Transmit Frame Sync
FSR (SC1 or SC2 Pin) Receive Frame Sync
6.
i ck = Internal Clock; x ck = External Clock
i ck a = Internal Clock, Asynchronous Mode (asynchronous implies that TXC and RXC are two different clocks)
i ck s = Internal Clock, Synchronous Mode (synchronous implies that TXC and RXC are the same clock)
7.
In the timing diagrams below, the clocks and frame sync signals are drawn using the clock falling edge as a the first reference.
Clock and frame sync polarities are programmable in Control Register B (CRB). Refer to the
DSP56321 Reference Manual for
details.
Table 2-12.
ESSI Timings (Continued)
No.
Characteristics4, 6
Symbol Expression
200 MHz
220 MHz
240 MHz
275 MHz
Cond-
ition5
Unit
Min Max Min Max Min Max Min Max
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