sm5838a Nippon Precision Circuits Inc, (NPC), sm5838a Datasheet - Page 4

• Manufacturer Part Number: sm5838a
• Description: 5120 ? 8-bit Synchronous Fifo
• Manufacturer: Nippon Precision Circuits Inc, (NPC)

AC Characteristics
Input timing
1. All voltages measured with relative to V
2. Input timing input voltage levels are V
3. Input signal reference level is V
4. Input timing ratings measured with t
Normal-voltage (5V) specification
Clock cycle time
Clock pulsewidth
Input data setup time
Input data hold time
RW and RR setup time
RW and RR hold time
WE setup time
WE hold time
RE setup time
RE hold time
OE setup time
OE hold time
Rise and fall transition times
3.0V
0V
Parameter
CLK
DIN
RW
WE
RR
OE
RE
5ns
t
t
t
OEH
t
CKW
RH
RH
TH
t
Symbol
= 1.5V.
CK
t
t
T
t
t
t
t
t
CKW
WES
WEH
t
t
t
t
t
RES
REH
OES
OEH
CK
DS
DH
RS
RH
IL
t
= 5ns.
T
t
SS
= 0V and V
t
t
t
t
CKW
RS
RS
OES
DS
.
IH
5ns
t
t
t
WEH
REH
= 3.0/2.5V (5/3V supply). Transition time is measured between V
DH
Condition
t
t
RW
RR
t
t
WES
RES
SM5838AS
Low-voltage (3V) specification
t
t
t
t
t
OEH
WEH
RH
RH
REH
2.5V
0V
min
30
13
10
13
13
10
7
3
0
0
0
0
–
t
t
t
5V supply
t
t
t
WES
OES
RES
DS
RS
RS
typ
–
–
–
–
–
–
–
–
–
–
–
–
–
5ns
t
DH
max
30
–
–
–
–
–
–
–
–
–
–
–
–
SEIKO NPC CORPORATION —4
min
50
23
10
17
23
23
17
4
0
0
0
0
–
IH
and V
3V supply
typ
–
–
–
–
–
–
–
–
–
–
–
–
–
IL
5ns
.
max
30
–
–
–
–
–
–
–
–
–
–
–
–
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns