STK16C88-3W45 Cypress Semiconductor Corp, STK16C88-3W45 Datasheet - Page 4

• Manufacturer Part Number: STK16C88-3W45
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of STK16C88-3W45

• Word Size: 8b
• Organization: 32Kx8
• Density: 256Kb
• Interface Type: Parallel
• Access Time (max): 45ns
• Operating Supply Voltage (typ): 3.3V
• Package Type: PDIP
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 2.7V
• Operating Temp Range: 0C to 70C
• Pin Count: 28
• Mounting: Through Hole
• Lead Free Status / Rohs Status: Not Compliant

STK16C88-3
February 2002
SRAM WRITE CYCLES #1 & #2
Note i:
Note j:
SRAM WRITE CYCLE #1: W Controlled
SRAM WRITE CYCLE #2: E Controlled
NO.
12
13
14
15
16
17
18
19
20
21
ADDRESS
DATA OUT
DATA OUT
ADDRESS
DATA IN
DATA IN
If W is low when E goes low, the outputs remain in the high-impedance state.
E or W must be
t
t
t
t
t
t
t
t
t
t
AVAV
WLWH
ELWH
DVWH
WHDX
AVWH
AVWL
WHAX
WLQZ
WHQX
W
#1
E
W
E
h, i
SYMBOLS
t
t
t
t
t
t
t
t
AVAV
WLEH
ELEH
DVEH
EHDX
AVEH
AVEL
EHAX
#2
V
IH
t
AVWL
during address transitions.
18
t
AVEL
18
PREVIOUS DATA
t
Alt.
t
t
t
t
t
t
t
t
t
OW
WC
WP
CW
DW
AW
WR
WZ
DH
AS
Write Cycle Time
Write Pulse Width
Chip Enable to End of Write
Data Set-up to End of Write
Data Hold after End of Write
Address Set-up to End of Write
Address Set-up to Start of Write
Address Hold after End of Write
Write Enable to Output Disable
Output Active after End of Write
t
t
WLQZ
AVEH
17
20
t
AVWH
17
t
WLWH
PARAMETER
13
t
ELWH
j
14
j
t
t
AVAV
5-78
AVAV
12
12
HIGH IMPEDANCE
t
ELEH
14
t
WLEH
13
HIGH IMPEDANCE
t
DVWH
15
t
DVEH
15
DATA VALID
DATA VALID
STK16C88-3-45
MIN
45
30
30
15
30
0
0
0
5
MAX
t
WHDX
15
t
WHAX
16
19
t
EHDX
t
EHAX
16
19
t
WHQX
21
STK16C88-3-55
(V
MIN
55
40
40
25
40
0
0
0
5
CC
= 2.7V-3.6V)
MAX
20
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns