DSP56362 View Datasheet(PDF) - Freescale Semiconductor
Part Name
Description
Manufacturer
DSP56362 Datasheet PDF : 152 Pages
| |||
External Memory Expansion Port (Port A)
Table 3-8 SRAM Read and Write Accesses 100 and 120 MHz1 (continued)
No.
Characteristics
104 Address and AA valid to input data valid
105 RD assertion to input data valid
106 RD deassertion to data not valid (data hold
time)
107 Address valid to WR deassertion3
108 Data valid to WR deassertion (data setup
time)
109 Data hold time from WR deassertion
110 WR assertion to data active4
111 WR deassertion to data high impedance4
Symbol
Expression2
100 MHz
120 MHz
Unit
Min Max Min Max
tAA, tAC
100 MHz:
— 10.5
(WS + 0.75) × TC − 7.0
[WS ≥ 1]
7.6 ns
tOE
100 MHz:
— 5.5 — 3.4 ns
(WS + 0.25) × TC − 7.0
[WS ≥ 1]
tOHZ
0.0 — 0.0 — ns
tAW (WS + 0.75) × TC − 4.0 13.5 — 10.6 — ns
[WS ≥ 1]
tDS (tDW)
100 MHz:
4.5 — 3.2 — ns
(WS − 0.25) × TC − 3.0
[WS ≥ 1]
tDH
100 MHz:
0.5 — 0.1 — ns
0.25 × TC − 2.0
[1 ≤ WS ≤ 3]
1.25 × TC − 2.0
[4 ≤ WS ≤ 7]
10.5 — 8.4 —
2.25 × TC − 2.0
[WS ≥ 8]
20.5 — 16.7 —
0.75 × TC − 3.7
[WS = 1]
— — 2.5 — ns
0.25 × TC − 3.7
[2 ≤ WS ≤ 3]
— — 0.0 —
−0.25 × TC − 3.7
[WS ≥ 4]
— — 0.0 —
0.25 × TC + 0.2
[1 ≤ WS ≤ 3]
— — — 2.3 ns
1.25 × TC + 0.2
[4 ≤ WS ≤ 7]
— — — 10.6
2.25 × TC + 0.2
[WS ≥ 8]
— — — 18.9
Freescale Semiconductor
DSP56362 Technical Data, Rev. 4
3-15
Share Link: 