BSI
BS616LV2021
AC TEST CONDITIONS
KEY TO SWITCHING WAVEFORMS
Input Pulse Levels
Input Rise and Fall Times
Input and Output
Timing Reference Level
Vcc/0V
5ns
0.5Vcc
WAVEFORM
INPUTS
MUST BE
STEADY
OUTPUTS
MUST BE
STEADY
AC TEST LOADS AND WAVEFORMS
3.3V
OUTPUT
1269 Ω
3.3V
OUTPUT
1269 Ω
INCLUDING
JIG AND
SCOPE
100PF
1404 Ω
INCLUDING
JIG AND
SCOPE
5PF
1404 Ω
FIGURE 1A
FIGURE 1B
OUTPUT
THEVENIN EQUIVALENT
667 Ω
1.73V
MAY CHANGE
FROM H TO L
MAY CHANGE
FROM L TO H
,
DON T CARE:
ANY CHANGE
PERMITTED
DOES NOT
APPLY
WILL BE
CHANGE
FROM H TO L
WILL BE
CHANGE
FROM L TO H
CHANGE :
STATE
UNKNOWN
CENTER
LINE IS HIGH
IMPEDANCE
”OFF ”STATE
ALL INPUT PULSES
Vcc
GND
10%
→
90% 90%
←
→
FIGURE 2
10%
← 5ns
AC ELECTRICAL CHARACTERISTICS (TA = 0oC to +70oC, Vcc =3.0V )
READ CYCLE
JEDEC
PARAMETER
NAME
t
AVAX
PARAMETER
NAME
t
RC
DESCRIPTION
Read Cycle Time
BS616LV2021-70
MIN. TYP. MAX.
70 -- --
t
AVQV
t
AA
Address Access Time
-- -- 70
t
E1LQV
t
ACS1
Chip Select Access Time
(CE1) -- -- 70
t
E2LQV
t
ACS2
Chip Select Access Time
(CE2) -- -- 70
t
BA
t (1)
BA
Data Byte Control Access Time
(LB,UB) -- -- 35
t
GLQV
t
OE
Output Enable to Output Valid
-- -- 35
t
ELQX
t
CLZ
Chip Select to Output Low Z
(CE1,CE2) 10 -- --
t
BE
t
BE
Data Byte Control to Output Low Z (LB,UB) 10 --
--
t
GLQX
t
OLZ
Output Enable to Output in Low Z
10 -- --
t
EHQZ
t
CHZ
Chip Deselect to Output in High Z (CE1,CE2) 0
-- 35
t
BDO
t
BDO
Data Byte Control to Output High Z (LB, UB) 0
-- 35
t
GHQZ
t
OHZ
Output Disable to Output in High Z
0 -- 30
t
AXOX
t
OH
Output Disable to Address Change
10 -- --
BS616LV2021-10
MIN. TYP. MAX.
100 -- --
-- -- 100
-- -- 100
-- -- 100
-- -- 50
-- -- 50
15 -- --
15 -- --
15 -- --
0 -- 40
0 -- 40
0 -- 35
15 -- --
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTE :
1. tBA is 35ns/50ns (@speed=70ns/100ns) with address toggle .
tBA is 70ns/100ns (@speed=70ns/100ns) without address toggle .
R0201-BS616LV2021
6
Revision 2.4
April 2002