at40kel040 ATMEL Corporation, at40kel040 Datasheet - Page 28

• Manufacturer Part Number: at40kel040
• Description: Rad Hard Reprogrammable Fpgas With Freeram
• Manufacturer: ATMEL Corporation

AC Timing
Characteristics
28
Cell Function
Asynchronous RAM
Write
Write
Write
Write
Write
Write
Write
Write
Write/Read
Read
Read
Read
Synchronous RAM
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write/Read
Write/Read
Read
Read
Read
AT40KEL040
Parameter
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WECYC
WEL
WEH
setup
hold
setup
hold
hold
PD
PD
PZX
PXZ
CYC
CLKL
CLKH
setup
hold
setup
hold
setup
hold
PD
PD
PD
PZX
PXZ
(max)
(max)
(max)
(max)
(max)
(min)
(min)
(min)
(min)
(min)
(min)
(max)
(max)
(max)
(max)
(min)
(min)
(min)
(min)
(min)
(min)
(min)
(min)
(min)
(min)
(min)
Path
cycle time
we
we
wr addr setup -> we
wr addr hold -> we
din setup -> we
din hold -> we
oe hold -> we
din -> dout
rd addr -> dout
oe -> dout
oe -> dout
cycle time
clk
clk
we setup -> clk
we hold -> clk
wr addr setup -> clk
wr addr hold -> clk
wr data setup -> clk
wr data hold -> clk
din -> dout
clk -> dout
rd addr -> dout
oe -> dout
oe -> dout
Value
14.1
13.1
14.1
13.1
6.5
6.5
5.0
6.5
7.9
6.5
7.0
0.0
6.5
0.0
0.0
4.5
4.5
6.5
0.0
0.0
5.1
0.0
4.5
4.5
28
28
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
pulse width low
pulse width high
rd addr = wr addr
pulse width low
pulse width high
rd addr = wr addr
rd addr = wr addr
4155I–AERO–06/06