xc4020e-xl Xilinx Corp., xc4020e-xl Datasheet - Page 10

• Manufacturer Part Number: xc4020e-xl
• Description: Xc4000e And Xc4000x Series Field Programmable Gate Arrays
• Manufacturer: Xilinx Corp.

XC4000E and XC4000X Series Field Programmable Gate Arrays
6-14
Figure 4:
Figure 5: 32x1 Edge-Triggered Single-Port RAM (F and G addresses are identical)
G 1 • • • G 4
C 1 • • • C 4
F 1 • • • F 4
(CLOCK)
16x2 (or 16x1) Edge-Triggered Single-Port RAM
K
G 1 • • • G 4
C 1 • • • C 4
F 1 • • • F 4
(CLOCK)
4
K
WE
4
WE
D 1 /A 4
4
4
4
4
D 1
D 0
D 0
LATCH
ENABLE
LATCH
ENABLE
EC
4
4
EC
LATCH
ENABLE
LATCH
ENABLE
4
4
DECODER
DECODER
EC
WRITE
1 of 16
WRITE
1 of 16
DECODER
DECODER
WRITE
1 of 16
WRITE
1 of 16
WRITE PULSE
WRITE PULSE
WRITE PULSE
WRITE PULSE
16-LATCH
16-LATCH
ARRAY
ARRAY
D IN
D IN
16-LATCH
16-LATCH
ARRAY
ARRAY
D IN
D IN
ADDRESS
ADDRESS
READ
READ
ADDRESS
ADDRESS
MUX
MUX
READ
READ
MUX
MUX
May 14, 1999 (Version 1.6)
X6752
G'
F'
G'
F'
X6754
H'
R