BSI
BS616LV4021
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%
←
→
10%
← 5ns
FIGURE 2
AC ELECTRICAL CHARACTERISTICS ( TA = 0 to + 70oC, Vcc=3.0V)
READ CYCLE
JEDEC
PARAMETER
NAME
t
AVAX
t
AVQV
t
E1LQV
t
E2LQV
t
BA
t
GLQV
t
ELQX
t
BE
t
GLQX
t
EHQZ
t
BDO
t
GHQZ
t
AXOX
PARAMETER
NAME
t
RC
t
AA
t
ACS1
t
ACS2
t (1)
BA
t
OE
t
CLZ
t
BE
t
OLZ
t
CHZ
t
BDO
t
OHZ
t
OH
DESCRIPTION
Read Cycle Time
Address Access Time
Chip Select Access Time
Chip Select Access Time
Data Byte Control Access Time
Output Enable to Output Valid
Chip Select to Output Low Z
Data Byte Control to Output Low Z
Output Enable to Output in Low Z
Chip Deselect to Output in High Z
Data Byte Control to Output High Z
Output Disable to Output in High Z
Output Disable to Address Change
BS616LV4021-70
MIN. TYP. MAX.
70 --
--
--
(CE1) --
-- 70
-- 70
(CE2) --
(LB,UB) --
-- 70
-- 35
--
-- 35
(CE1,CE2) 10 --
--
(LB,UB) 10 --
--
10 --
--
(CE1,CE2) 0
-- 35
(LB, UB) 0
-- 35
0
-- 30
10 --
--
BS616LV4021-10
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-BS616LV4021
6
Revision 2.4
April 2002