STK22C48-W25 Cypress Semiconductor Corp, STK22C48-W25 Datasheet - Page 3

• Manufacturer Part Number: STK22C48-W25
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of STK22C48-W25

• Word Size: 8b
• Organization: 2Kx8
• Density: 16Kb
• Interface Type: Parallel
• Access Time (max): 25ns
• Operating Supply Voltage (typ): 5V
• Package Type: PDIP
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: 0C to 70C
• Pin Count: 28
• Mounting: Through Hole
• Supply Current: 85mA
• Lead Free Status / RoHS Status: Not Compliant

SRAM READ CYCLES #1 & #2
Note h: W and HSB must be high during SRAM READ cycles.
Note i:
Note j:
SRAM READ CYCLE #1: Address Controlled
SRAM READ CYCLE #2: E Controlled
July 1999
DQ (DATA OUT)
Q (DATA OUT)
NO.
10
11
1
2
3
4
5
6
7
8
9
ADDRESS
ADDRESS
Device is continuously selected with E and G both low.
Measured ± 200mV from steady state output voltage.
t
t
t
t
t
t
t
t
t
t
t
#1, #2
ELQV
AVAV
AVQV
GLQV
AXQX
ELQX
EHQZ
GLQX
GHQZ
ELICCH
EHICCL
I
CC
G
E
SYMBOLS
h
i
i
j
j
g
g
Alt.
t
t
t
t
t
t
t
t
t
t
t
ACS
RC
AA
OE
OH
LZ
HZ
OLZ
OHZ
PA
PS
Chip Enable Access Time
Read Cycle Time
Address Access Time
Output Enable to Data Valid
Output Hold after Address Change
Chip Enable to Output Active
Chip Disable to Output Inactive
Output Enable to Output Active
Output Disable to Output Inactive
Chip Enable to Power Active
Chip Disable to Power Standby
STANDBY
PARAMETER
t
ELICCH
t
10
ELQX
t
AXQX
t
6
GLQX
5
8
t
GLQV
4
t
AVAV
h
2
t
ACTIVE
ELQV
t
AVQV
1
3
t
3-23
AVAV
2
STK22C48-20
MIN
20
5
5
0
0
h, i
MAX
20
22
25
8
7
7
STK22C48-25
MIN
DATA VALID
25
5
5
0
0
MAX
25
25
10
10
10
25
DATA VALID
STK22C48-35
MIN
35
5
5
0
0
(V
t
CC
GHQZ
MAX
9
35
35
15
13
13
35
t
EHQZ
7
= 5.0V ± 10%)
t
EHICCL
1 1
STK22C48-45
MIN
45
5
5
0
0
STK22C48
MAX
45
45
20
15
15
45
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
b, f