CYRS1543AV18
CYRS1545AV18
Document Number: 001-60007 Rev. *L Page 32 of 34
*I 3900846 02/11/2013 HRP Updated Neutron Soft Error Immunity (Changed value of Test Conditions of
SEL parameter from 85 °C to 125 °C).
Updated Pin Definitions (Changed Pin Name from A to A
[x:0]
).
Updated Functional Overview (Updated Qualification and Screening
(Replaced Class V with Class Q)).
Updated Application Example (Replaced four with two).
*J 3934155 03/15/2013 MISA Updated Selection Guide:
Changed Maximum operating current (125 °C, concurrent R/W) corresponding
to “× 18” for 250 MHz frequency from 1225 mA to 1275 mA.
Changed Maximum operating current (125 °C, concurrent R/W) corresponding
to “× 36” for 250 MHz frequency from 1225 mA to 1275 mA.
Updated Electrical Characteristics:
Updated DC Electrical Characteristics:
Changed maximum value of I
DD
parameter corresponding to “× 18” for
250 MHz frequency from 1225 mA to 1275 mA.
Changed maximum value of I
DD
parameter corresponding to “× 36” for
250 MHz frequency from 1225 mA to 1275 mA.
Changed maximum value of I
SB1
parameter corresponding to “× 18” for
250 MHz frequency from 510 mA to 570 mA.
Changed maximum value of I
SB1
parameter corresponding to “× 36” for
250 MHz frequency from 510 mA to 570 mA.
Removed 200 MHz frequency related information.
Updated Switching Characteristics:
Changed maximum value of t
CO
and t
CHQV
parameters from 0.7 ns to 0.85 ns.
Changed minimum value of t
DOH
and t
CHQX
parameters from –0.7 ns to
–0.85 ns.
Changed maximum value of t
CCQO
and t
CHCQV
parameters from 0.7 ns to
0.85 ns.
Changed minimum value of t
CQOH
and t
CHCQX
parameters from –0.7 ns to
–0.5 ns.
Removed 200 MHz frequency related information.
Updated Package Diagram:
spec 001-58969 – Changed revision from *C to *D.
*K 4286754 02/21/2014 MISA Updated Functional Overview:
Updated Qualification and Screening:
Replaced “Class Q” with “Class Q, Class V”.
Updated Ordering Information (Updated part numbers).
Updated to new template.
Document History Page (continued)
Document Title: CYRS1543AV18/CYRS1545AV18, 72-Mbit QDR
®
II+ SRAM Four-Word Burst Architecture with RadStop™
Technology
Document Number: 001-60007
Rev. ECN No.
Submission
Date
Orig. of
Change
Description of Change