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ＳＴＣ３４８５Ｅ Ｄａｔａｓｈｅｅｔ Ｒｅｖ．０．１， Ｄｅｃ．２００５
Ｐａｇｅ ｏｆ １１
７
ＳＴＣ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｌｉｍｉｔｅｄ ｈｔｔｐ：／／ｗｗｗ．ｍｃｕ－ｍｅｍｏｒｙ．ｃｏｍ
Figure 9. Receiver Propagation Delay
Figure 10. Receiver Enable and Disable Times
Note 4: The input pulse is supplied by a generator with the following characteristics: PRR = 250kHz, 50% duty cycle, tr=6.0ns, ZO = 50O.
Note 5: CL includes probe and stray capacitance.
Function Tables
Devices with Receiver/Driver Enable
Table 1. Transmitting
Table 2. Receiving
INPUTS
OUTPUTS
/RE
DE
DI
B
A
MODE
X
1
1
0
1
Normal
X
1
0
1
0
Normal
0
0
X
High-Z
High-Z
Normal
1
0
X
High-Z
High-Z
Shutdown
INPUTS
OUTPUTS
/RE
DE
A, B
RO
MODE
0
X
≥?-0.05V
1
Normal
0
X
≤?-0.2V
0
Normal
0
X
Inputs Open
1
Normal
1
0
X
High-Z
Shutdown
ＶＩＤ
５０ Ω
ＧＥＮＥＲＡＴＯＲ
（ＮＯＴＥ ４ ）
ＯＵＴ
ＩＮ
１．５Ｖ
１．５Ｖ
３．０Ｖ
０Ｖ
ｔＲＰＬＨ
ｔＲＰＨＬ
ＶＯＭ
ＶＯＭ
Ｒ
ＣＬ＝１５ｐＦ
（ＮＯＴＥ ５）
１．５Ｖ
０Ｖ
ＯＵＴ
ＶＯＭ＝
ＶＣＣ
２
ＶＣＣ
０Ｖ
ＶＩＤ
５０ Ω
ＧＥＮＥＲＡＴＯＲ
（ＮＯＴＥ ４ ）
１Ｋ
Ｒ
ＣＬ
（ＮＯＴＥ ５）
１．５Ｖ
－１．５Ｖ
Ｓ３
Ｓ１
Ｓ２
ＶＣＣ
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