6.2 Configuration control of SMD's. All proposed changes to existing SMD's will be coordinated with the users of record for the
individual documents. This coordination will be accomplished using DD Form 1692, Engineering Change Proposal.
6.3 Record of users. Military and industrial users should inform Defense Supply Center Columbus when a system application
requires configuration control and which SMD's are applicable to that system. DSCC will maintain a record of users and this list
will be used for coordination and distribution of changes to the drawings. Users of drawings covering microelectronic devices (FSC
5962) should contact DSCC-VA, telephone (614) 692-0544
6.4 Comments. Comments on this drawing should be directed to DSCC-VA, Columbus, Ohio 43216-5000, or telephone
(614) 692-0547.
6.5 Abbreviations, symbols, and definitions. The abbreviations, symbols, and definitions used herein are defined in MIL-PRF-
38535, MIL-STD-1331, and as follows:
C
, C
. . . . . . Input and bidirectional output, terminal-to-GND capacitance.
IN OUT
GND . . . . . . . . . . . Ground zero voltage potential.
I
I
I
T
T
. . . . . . . . . . . . Supply current.
CC
IL
IH
C
A
. . . . . . . . . . . . . Input current low.
. . . . . . . . . . . . Input current high.
. . . . . . . . . . . . Case temperature.
. . . . . . . . . . . . Ambient temperature.
. . . . . . . . . . . Positive supply voltage.
V
V
CC
. . . . . . . . . . . . Output enable and Write enable voltage during chip erase.
H
O/V . . . . . . . . . . . . Latchup over-voltage.
6.5.1 Timing limits. The table of timing values shows either a minimum or a maximum limit for each parameter. Input
requirements are specified from the external system point of view. Thus, address setup time is shown as a minimum since the
system must supply at least that much time (even though most devices do not require it). On the other hand, responses from the
memory are specified from the device point of view. Thus, the access time is shown as a maximum since the device never provides
data later than that time.
6.5.2 Timing parameter abbreviations. All timing abbreviations use lower case characters with upper case subscripts. The
initial character is always "t" and is followed by four descriptors. These characters specify two signal points arranged in a "from-to"
sequence that define a timing interval. The two descriptors for each signal specify the signal name and the signal transition. Thus
the format is:
t
X
X
X
X
Signal name from which interval is defined
Transition direction for first signal
Signal name to which interval is defined
Transition direction for second signal
a. Signal definitions:
b. Transition definitions:
A = Address
H = Transition to high
D = Data in
L = Transition to low
Q = Data out
V = Transition to valid
W = Write enable
E = Chip enable
G = Output enable
X = Transition to invalid or don't care
Z = Transition to off (high impedance)
SIZE
STANDARD
MICROCIRCUIT DRAWING
5962-38267
A
DEFENSE SUPPLY CENTER COLUMBUS
COLUMBUS, OHIO 43216-5000
REVISION LEVEL
G
SHEET
36
DSCC FORM 2234
APR 97
MAXWELL [ MAXWELL TECHNOLOGIES ]
