emc646sp16ak Emlsi Inc., emc646sp16ak Datasheet - Page 26
emc646sp16ak
Manufacturer Part Number
emc646sp16ak
Description
4mx16 Bit Cellularram
Manufacturer
Emlsi Inc.
Datasheet
1.EMC646SP16AK.pdf
(64 pages)
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Table 6: Fixed Latency Configuration Codes
Figure 19: Latency Counter (Fixed Latency)
Operating Mode (BCR[15]) Default = Asynchronous Operation
The operating mode bit selects either synchronous burst operation or the default asynchronous mode of operation.
BCR[13:11]
others
010
100
101
000
011
110
DQ[15:0]
DQ[15:0]
(WRITE)
(READ)
A[21:0]
ADV#
2 (3 clocks)
3 (4 clocks)-default
4 (5 clocks)
5 (6 clocks)
6 (7 clocks)
8 (9 clocks)
Reserved
CE#
CLK
Configuration
V
V
V
V
V
Latency
V
V
V
V
V
V
V
OH
IH
OH
OL
IL
IH
OL
IH
IH
IL
Code
IL
IL
Address
Burst Identified
(ADV# = LOW)
Valid
t
Latency Count (N)
AADV
t
t
CO
AA
Cycles
N-1
--
2
3
4
5
6
8
t
ACLK
Cycle N
Output
Valid
26
t
Valid
Input
SP
t
HD
104(9.62ns)
52(19.2ns)
75(13.3ns)
133(7.5ns)
33(30ns)
66(15ns)
Output
Valid
133
Valid
Input
-
Max Input CLK Frequency (MHz)
Output
Valid
Don’t Care
Valid
Input
104(9.62ns)
Output
52(19.2ns)
75(13.3ns)
33(30ns)
66(15ns)
Valid
Valid
Input
EMC646SP16AK
104
-
-
4Mx16 CellularRAM
Output
Undefined
Valid
Valid
Input
52(19.2ns)
75(13.3ns)
80(12.5ns)
33(30ns)
66(15ns)
80
-
-
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