STK15C88-S35I Cypress Semiconductor Corp, STK15C88-S35I Datasheet - Page 2

• Manufacturer Part Number: STK15C88-S35I
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of STK15C88-S35I

• Word Size: 8b
• Organization: 32Kx8
• Density: 256Kb
• Interface Type: Parallel
• Access Time (max): 35ns
• Operating Supply Voltage (typ): 5V
• Package Type: SOIC
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: -40C to 85C
• Pin Count: 28
• Mounting: Surface Mount
• Supply Current: 80mA
• Lead Free Status / Rohs Status: Not Compliant

STK15C88
August 1998
ABSOLUTE MAXIMUM RATINGS
Voltage on input relative to V
Voltage on DQ
Temperature under bias . . . . . . . . . . . . . . . . . . . . . –55 C to 125 C
Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . –65 C to 150 C
Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1W
DC output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mA
DC CHARACTERISTICS
SRAM READ CYCLES #1 & SRAM READ
Note b: I
Note c: I
Note d: E V
AC TEST CONDITIONS
CAPACITANCE
Note e: These parameters are guaranteed but not tested.
Input pulse levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V to 3V
Input rise and fall times
Input and output timing reference levels . . . . . . . . . . . . . . . . . 1.5V
Output load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Figure 1
SYMBOL
SYMBOL
I
I
I
I
I
I
I
I
V
V
V
V
T
C
C
CC 1
CC 2
CC 3
CC 4
SB 1
SB 2
ILK
OLK
A
IH
IL
OH
OL
IN
OUT
d
d
b
c
b
c
CC 1
CC 2
and I
and I
Average Current
Average Current During STORE
Average V
Average Current During AutoStore ™
Cycle
Average Current
(Standby, Cycling TTL Input Levels)
Standby Current
(Standby, Stable CMOS Input Levels)
Input Leakage Current
Off-State Output Leakage Current
Input Logic “1” Voltage
Input Logic “0” Voltage
Output Logic “1” Voltage
Output Logic “0” Voltage
Operating Temperature
IH
0-7
Input capacitance
Output capacitance
will not produce standby current levels until any nonvolatile cycle in progress has timed out.
PARAMETER
. . . . . . . . . . . . . . . . . . . . . . –0.5V to (V
CC 3
CC 4
are dependent on output loading and cycle rate. The specified values are obtained with outputs unloaded.
are the average currents required for the duration of the respective
CC
PARAMETER
e
Current at t
SS
. . . . . . . . . . . –0.6V to (V
(T
AVAV
A
MAX
= 25 C, f = 1.0MHz)
5
7
= 200ns
a
UNITS
pF
pF
V
SS
MIN
COMMERCIAL
2.2
2.4
CONDITIONS
0
– .5
V = 0 to 3V
V = 0 to 3V
CC
CC
+ 0.5V)
+ 0.5V)
V
CC
MAX
5ns
0.8
0.4
95
75
65
15
29
24
20
70
6
4
3
1
5
5-36
+ .5
Note a:
V
SS
MIN
INDUSTRIAL
-40
2.2
2.4
– .5
V
Stresses greater than those listed under “Absolute Max-
mum Ratings” may cause permanent damage to the
device. This a stress rating only, and functional operation
of the device at conditions above those indicated in the
operational sections of this specification is not implied.
Exposure to absolute maximum rating conditions for
extended periods may affect reliability.
CC
MAX
100
0.8
0.4
80
70
30
25
21
15
85
7
4
3
1
5
STORE
+ .5
Output
UNITS
Figure 1: AC Output Loading
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
cycles (t
V
V
V
V
C
A
A
255 Ohms
STORE
t
t
t
All inputs Don’t Care
W
All others cycling, CMOS levels
All inputs Don’t Care
t
t
t
E
All others V
V
V
V
V
All inputs
All inputs
I
I
AVAV
AVAV
AVAV
AVAV
AVAV
AVAV
OUT
OUT
CC
IN
CC
IN
= V
(V
= V
(V
= max
= max
= – 4mA
= 8mA
) .
= 25ns
= 45ns
= 35ns, E
= 45ns, E
= 35ns
= 25ns, E
CC
CC
SS
SS
– 0.2V)
– 0.2V)
to V
to V
(V
IN
CC
CC
cc
0.2V or
, E or G
NOTES
5.0V
V
V
V
= 5.0V
IH
IH
IH
480 Ohms
30pF
INCLUDING
SCOPE
AND FIXTURE
(V
V
CC
IH
– 0.2V)
10%)