STK11C68-5KF55M Cypress Semiconductor Corp, STK11C68-5KF55M Datasheet - Page 7

• Manufacturer Part Number: STK11C68-5KF55M
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of STK11C68-5KF55M

• Word Size: 8b
• Organization: 8Kx8
• Density: 64Kb
• Interface Type: Parallel
• Access Time (max): 55ns
• Operating Supply Voltage (typ): 5V
• Package Type: CDIP
• Operating Temperature Classification: Military
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: -55C to 125C
• Pin Count: 28
• Mounting: Through Hole
• Supply Current: 80mA
• Lead Free Status / RoHS Status: Compliant

STORE/RECALL CYCLE
Note p: Once the software STORE or RECALL cycle is initiated, it completes automatically, ignoring all inputs.
Note q: Note that STORE cycles (but not RECALLs ) are aborted by V
Note r:
Note s: Noise on the E pin may trigger multiple read cycles from the same address and abort the address sequence.
Note t:
Note u: W must be
Note v: E must be used to clock in the address sequence for the Software STORE and RECALL cycles.
STORE/RECALL CYCLE
NO.
22
23
24
25
26
27
28
DATA OUT
ADDRESS
t
t
t
t
t
t
t
AVAV
ELQZ
ELQXS
ELQXR
AVELN
ELEHN
EHAXN
A RECALL cycle is initiated automatically at power up when V
If the Chip Enable Pulse Width is less than t
the low pulse, however the STORE or RECALL will still be initiated.
Addresses #1 through #6 are found in the
#1
p
SYMBOLS
s
s,t
s
E
HIGH
t
t
t
t
t
t
RC
STORE
RECALL
AE
EP
EA
Alt.
when E is
t
q
AVELN
r
26
STORE/RECALL Initiation Cycle Time
Chip Enable to Output Inactive
STORE Cycle Time
RECALL Cycle Time
Address Set-up to Chip Enable
Chip Enable Pulse Width
Chip Disable to Address Change
LOW
ADDRESS #1
during the address sequence in order to initiate a nonvolatile cycle. G may be either
t
t
ELEHN
AVAV
DATA VALID
u,v
22
27
PARAMETER
MODE SELECTION
ELQV
(see
t
EHAXN
28
READ CYCLE
table. Address #6 determines whether the STK11C68-M performs a STORE or RECALL
CC
CC
< 4.0V (STORE inhibit).
exceeds 4.0V. t
#2) but greater than or equal to t
4-37
ADDRESS #6
RECALL
STK11C68-35M
t
AVAV
MIN
22
35
25
0
0
is measured from the point at which V
DATA VALID
t
ELQZ
23
MAX
75
10
20
ELEHN
t
STORE
STK11C68-45M
, then the data may not be valid at the end of
MIN
24
45
35
0
0
t
HIGH IMPEDANCE
RECALL
MAX
75
10
20
HIGH
25
or
(V
LOW
STK11C68-55M
MIN
55
45
CC
CC
0
0
throughout.
exceeds 4.5V.
STK11C68-M
= 5.0V
MAX
85
10
20
UNITS
10%)
ms
ns
ns
ns
ns
ns
.
s