apa075 Actel Corporation, apa075 Datasheet - Page 69

• Manufacturer Part Number: apa075
• Description: Proasicplus Flash Family Fpgas
• Manufacturer: Actel Corporation

Asynchronous Write and Read to the Same Location
Note: The plot shows the normal operation status.
Figure 1-39 • Asynchronous Write and Read to the Same Location
Table 1-58 • T
Symbol t
ORDA
ORDH
OWRA
OWRH
RAWRS
RAWRH
Notes:
1. During an asynchronous read cycle, each write operation (synchronous or asynchronous) to the same location will automatically
2. Violation or RAWRS will disturb access to the OLD data.
3. Violation of RAWRH will disturb access to the NEWER data.
4. All –F speed grade devices are 20% slower than the standard numbers.
trigger a read operation which updates the read data. Refer to the
information.
WB = {WRB+WBLKB}
xxx
T
J
J
= 0°C to 110°C; V
= –55°C to 150°C, V
RB, RADDR
New DO access from RB ↓
Old DO valid from RB ↓
New DO access from WB ↑
Old DO valid from WB ↑
RB ↓ or RADDR from WB ↓
RB ↑ or RADDR from WB ↑
t ORDA
t ORDH
t RAWRS
DO
DD
Description
DD
= 2.3 V to 2.7 V for Commercial/industrial
= 2.3 V to 2.7 V for Military/MIL-STD-883
OLD
v5.5
Min.
7.5
3.0
5.0
5.0
ProASIC
PLUS
Max.
3.0
0.5
t OWRH
t OWRA
NEW
RAM and FIFO Blocks
Units
ns
ns
ns
ns
ns
ns
ProASIC
NEWER
PLUS
application note for more
Flash Family FPGAs
Notes
t RAWRH
1-63