參數(shù)資料
型號： SPAKDSP321VL275
廠商： Freescale Semiconductor
文件頁數(shù)： 20/84頁
文件大?。?/td> 0K
描述： IC DSP 24BIT 275MHZ 196-MAPBGA
標準包裝： 126
系列： DSP56K/Symphony
類型： 定點
接口： 主機接口，SSI，SCI
時鐘速率： 275MHz
非易失內存： 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
供應商設備封裝： 196-MAPBGA（15x15）
包裝： 托盤
AC Electrical Characteristics
DSP56321 Technical Data, Rev. 11
Freescale Semiconductor
2-7
20 Delay from RD assertion to interrupt
request deassertion for level sensitive
fast interrupts1, 6, 7
(WS + 3.25)
× TC –
10.94
—
Note 7
—
Note 7
—
Note 7
—
Note 7
ns
21 Delay from WR assertion to interrupt
request deassertion for level sensitive
fast interrupts1, 6, 7
SRAM WS = 3
SRAM WS
≥ 4
(WS + 3)
× TC – 10.94
(WS + 2.5)
× TC – 10.94
—
Note 7
—
Note 7
—
Note 7
—
Note 7
ns
24 Duration for IRQA assertion to recover
from Stop state
8.0
—
8.0
—
8.0
—
8.0
—
ns
25 Delay from IRQA assertion to fetch of
first instruction (when exiting Stop)2, 3
DPLL is not active during Stop
(PCTL Bit 1 = 0) and Stop delay is
enabled (Operating Mode Register
Bit 6 = 0)
DPLL is not active during Stop
(PCTL Bit 1 = 0) and Stop delay is
not enabled (Operating Mode
Register Bit 6 = 1)
DPLL is active during Stop (PCTL
Bit 1 = 1; Implies No Stop Delay)
DPLT + (128K
× TC)
DPLT + (23.75 ± 0.5)
×
TC
(10.0
± 1.75) × TC
662.2
s
6.9
41.25
209.9
ms
188.8
58.8
662.2
s
6.9
37.5
209.9
ms
188.8
53.3
662.2
s
6.9
34.4
209.9
ms
188.8
49.0
662.2
s
6.9
30.0
209.9
ms
188.8
43.0
—
s
ns
26 Duration of level sensitive IRQA
assertion to ensure interrupt service
(when exiting Stop)2, 3
DPLL is not active during Stop
(PCTL bit 1 = 0) and Stop delay is
enabled (Operating Mode Register
Bit 6 = 0)
DPLL is not active during Stop
(PCTL bit 1 = 0) and Stop delay is
not enabled (Operating Mode
Register Bit 6 = 1)
DPLL is active during Stop ((PCTL
bit 1 = 0; implies no Stop delay)
DPLT + (128 K
× TC)
DPLT + (20.5
± 0.5) × T
C
5.5
× TC
805.4
150.1
27.5
—
805.4
150.1
25
—
805.4
150.1
22.9
—
805.4
150.1
20.0
—
s
ns
27 Interrupt Request Rate
HI08, ESSI, SCI, Timer
DMA
IRQ, NMI (edge trigger)
IRQ, NMI (level trigger)
12TC
8TC
12TC
—
60.0
40.0
60.0
—
54.6
36.4
54.6
—
50.0
33.4
50.0
—
43.7
29.2
43.7
ns
28 DMA Request Rate
Data read from HI08, ESSI, SCI
Data write to HI08, ESSI, SCI
Timer
IRQ, NMI (edge trigger)
6TC
7TC
2TC
3TC
—
30.0
35.0
10.0
15.0
—
27.3
31.9
9.1
13.7
—
25.0
29.2
8.3
12.5
—
21.84
25.48
7.28
10.92
ns
29 Delay from IRQA, IRQB, IRQC, IRQD,
NMI assertion to external memory
(DMA source) access address out
valid
4.25
× TC + 2.0
23.25
—
21.34
—
19.72
—
17.45
—
ns
Table 2-7.
Reset, Stop, Mode Select, and Interrupt Timing5
(CONTINUED)
No.
Characteristics
Expression
200 MHz
220 MHz
240 MHz
275 MHz
Unit
Min
Max
Min
Max
Min
Max
Min
Max
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