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參數(shù)資料
| 型號： | VMEH22501A |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 8-BIT UNIVERSAL BUS TRANSCEIVER AND TWO 1-BIT BUS TRANSCEIVERS WITH SPLIT LVTTL PORT, FEEDBACK PATH, AND 3-STATE OUTPUTS |
| 中文描述： | 8位通用總線收發(fā)器和兩個1位總線收發(fā)器與劈開LVTTL港口，反饋路徑，以及三態(tài)輸出 |
| 文件頁數(shù)： | 15/30頁 |
| 文件大?。?/td> | 568K |
| 代理商： | VMEH22501A |
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SCES620 – DECEMBER 2004
15
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
driver in slot 11, with receiver cards in all other slots (full load) (continued)
switching characteristics over recommended operating conditions for UBT (unless otherwise
noted) (see Figure 3)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN
TYP
MAX
UNIT
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tr
tf
3A
3B
6.2
8.9
ns
5.6
9
LE
3B
6.1
9.1
ns
5.6
9
CLKAB
3B
6.2
9.1
ns
5.7
9
Transition time, B port (10%90%)
9
8.6
11.4
ns
Transition time, B port (90%10%)
8.9
9
10.8
ns
All typical values are at VCC = 3.3 V, TA = 25
°
C. All values are derived from TI-SPICE models.
All tr and tf times are taken at the first receiver.
skew characteristics for bus transceiver for specific worst-case V
CC
and temperature within the
recommended ranges of supply voltage and operating free-air temperature (see Figure 3)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN
TYP
MAX
UNIT
tsk(LH)
1A or 2A
1B or 2B
2.5
ns
tsk(HL)
tsk(t)§
3
1A or 2A
1B or 2B
1
ns
tsk(pp)
1A or 2A
1B or 2B
0.5
3.4
ns
All typical values are at VCC = 3.3 V, TA = 25
°
C. All values are derived from TI-SPICE models.
§tsk(t) Output-to-output skew is defined as the absolute value of the difference between the actual propagation delay for all outputs of the same
packaged device. The specifications are given for specific worst-case VCC and temperature and apply to any outputs switching in opposite
directions, both low to high (LH) and high to low (HL) [tsk(t)].
skew characteristics for UBT for specific worst-case V
CC
and temperature within the
recommended ranges of supply voltage and operating free-air temperature (see Figure 3)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN
TYP
MAX
UNIT
tsk(LH)
3A
3B
2.4
ns
tsk(HL)
3.4
tsk(LH)
CLKAB
3B
2.7
ns
tsk(HL)
3.4
3A
3B
1
ns
tsk(t)§
CLKAB
3B
1
tsk(pp)
3A
3B
0.5
3.4
ns
CLKAB
3B
0.6
3.5
All typical values are at VCC = 3.3 V, TA = 25
°
C. All values are derived from TI-SPICE models.
§tsk(t) Output-to-output skew is defined as the absolute value of the difference between the actual propagation delay for all outputs of the same
packaged device. The specifications are given for specific worst-case VCC and temperature and apply to any outputs switching in opposite
directions, both low to high (LH) and high to low (HL) [tsk(t)].
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