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EMC646SP16JS-85L Datasheet(PDF) 57 Page - Emerging Memory & Logic Solutions Inc

Part # EMC646SP16JS-85L
Description  4Mx16 bit CellularRAM
PDF  65 Pages
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Manufacturer  EMLSI [Emerging Memory & Logic Solutions Inc]
Direct Link  http://www.emlsi.com
Logo EMLSI - Emerging Memory & Logic Solutions Inc

EMC646SP16JS-85L Datasheet(HTML) 57 Page - Emerging Memory & Logic Solutions Inc

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EMC646SP16J
4Mx16 CellularRAM
57
Preliminary
Figure 46. Asynchronous WRITE (ADV# LOW) Followed By Burst READ
Note:
1. Non-default BCR settings for asynchronous WRITE, with ADV# LOW, followed by burst READ: Fixed or variable latency; latency code two (three
clocks); WAIT active LOW; WAIT asserted during delay.
2. When transitioning between asynchronous and variable-latency burst operations, CE# must go HIGH. CE# can stay LOW when transitioning to
fixed-latency burst READs. A refresh opportunity must be provided every tCEM. A refresh opportunity is satisfied by either of the following two
conditions: a) clocked CE# HIGH, or b) CE# HIGH for longer than 15ns.
CLK
ADV#
CE#
OE#
WAIT
DQ[15:0]
Don’t Care
Undefined
A[21:0]
LB#/UB#
VIH
VIL
WE#
VIH
VIL
VIH
VIL
VIH
VIL
VIH
VIL
VIH
VIL
VIH
VIL
VOH
VOL
VIH
VIL
Note 2
Valid Address
Valid
Output
Valid
Output
Valid
Output
Valid
Output
tCBPH
tOHZ
tCEW
tBOE
tACLK
tKOH
Data
Valid Address
Valid Address
Data
tCLK
tWC
tWC
tSP
tHD
tSP
tHD
tAW
tWR
tCW
tCSP
tWC
tBW
tSP
tSP tHD
tWP
tWPH
tDH
tDW
VOH
VOL
High-Z
High-Z
High-Z
tHD
IN/OUT



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