參數(shù)資料
型號: SN54ALVTH16821
廠商: Texas Instruments, Inc.
英文描述: 2.5-V/3.3-V 20-Bit Bus-Interface Flip-Flops(2.5V/3.3V 20位總線接口觸發(fā)器(三態(tài)輸出))
中文描述: 2.5-V/3.3-V 20位總線接口正反器(2.5V/3.3V的20位總線接口觸發(fā)器(三態(tài)輸出))
文件頁數(shù): 7/10頁
文件大?。?/td> 222K
代理商: SN54ALVTH16821
SN54ALVTH16821, SN74ALVTH16821
2.5-V/3.3-V 20-BIT BUS-INTERFACE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCES078A – JULY 1996 – REVISED JULY 1996
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range, V
CC
= 2.5 V
±
0.2 V
(unless otherwise noted) (see Figure 1)
SN54ALVTH16821
MIN
SN74ALVTH16821
MIN
UNIT
MAX
MAX
fclock
tw
tsu
th
Clock frequency
0
200
0
200
MHz
Pulse duration, CLK high or low
1.5
1.5
ns
Setup time, data before CLK
High or low
2
2
ns
Hold time, data after CLK
High or low
0.3
0.3
ns
timing requirements over recommended operating free-air temperature range, V
CC
= 3.3 V
±
0.3 V
(unless otherwise noted) (see Figure 2)
SN54ALVTH16821
MIN
SN74ALVTH16821
MIN
UNIT
MAX
MAX
fclock
tw
tsu
th
Clock frequency
0
300
0
300
MHz
Pulse duration, CLK high or low
1.5
1.5
ns
Setup time, data before CLK
High or low
1.7
1.7
ns
Hold time, data after CLK
High or low
0
0
ns
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF,
V
CC
= 2.5 V
±
0.2 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
SN54ALVTH16821
MIN
SN74ALVTH16821
MIN
TYP
UNIT
(OUTPUT)
MAX
MAX
fmax
tpd
ten
tdis
200
200
MHz
CLK
Q
1.5
5.7
1.5
2.8
5.2
ns
OE
Q
2
5.5
2
2.9
5
ns
OE
Q
2.5
6.5
2.5
4.1
6
ns
All typical values are at VCC = 2.5 V, TA = 25
°
C.
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF,
V
CC
= 3.3 V
±
0.3 V (unless otherwise noted) (see Figure 2)
PARAMETER
FROM
(INPUT)
TO
SN54ALVTH16821
SN74ALVTH16821
TYP
300
UNIT
(OUTPUT)
MIN
300
MAX
MIN
MAX
fmax
tpd
ten
tdis
MHz
CLK
Q
1.5
4.2
1.5
2.3
3.7
ns
OE
Q
1.2
4.1
1.2
2.2
3.6
ns
OE
Q
2
5.5
2
3.4
5
ns
All typical values are at VCC = 3.3 V, TA = 25
°
C.
P
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