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參數(shù)資料
| 型號(hào)： | 935250600118 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | LVC/LCX/Z SERIES, OCTAL 1-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24 |
| 封裝： | 7.50 MM, PLASTIC, MS-013, SOT-137-1, SO-24 |
| 文件頁數(shù)： | 16/16頁 |
| 文件大?。?/td> | 135K |
| 代理商： | 935250600118 |
Philips Semiconductors
Product specification
74LVC646A
Octal bus transceiver/register (3-State)
2000 Jun 21
9
AC WAVEFORMS
VM = 1.5 V at VCC w 2.7 V
VM = 0.5 V * VCC at VCC t 2.7 V
VOL and VOH are the typical output voltage drop that occur with the
output load.
VX = VOL + 0.3 V at VCC w 2.7 V
VX = VOL + 0.1 VCC at VCC < 2.7 V
VY = VOH – 0.3 V at VCC w 2.7 V
VY = VOH – 0.1 VCC at VCC < 2.7 V
SV00761
V M
A n , B n
INPUT
B n , A n
OUTPUT
t PHL
t PLH
GND
V OL
V I
V OH
Figure 1. Input An, Bn to output Bn, An propagation delays.
SV00760
VM
An, B n
INPUT
CPAB, CPBA
OUTPUT
Bn, A n
OUTPUT
VM
tW
tPHL
tPLH
1/fmax
tsu
th
tsu
th
GND
VOL
VI
VOH
Figure 2. An, Bn to CPAB, CPBA set-up and hold times, clock
CPAB, CPBA pulse width, maximum clock pulse frequency and
the CPAB, CPBA to output Bn, An propagation delays.
SV00759
V
M
S AB , S BA
INPUT
B n , A n
OUTPUT
V
M
t
PLH
t
PHL
GND
V
I
V OL
V OH
Figure 3. Input SAB, SBA to output Bn, An propagation delay
times.
SV00758
outputs
disabled
outputs
enabled
outputs
enabled
tPHZ
tPZH
tPZL
tPLZ
VX
VOL
VI
VCC
GND
VY
VOH
VM
OE INPUT
OUTPUT
HIGH–to–OFF
OFF–to–HIGH
OUTPUT
LOW–to–OFF
OFF–to–LOW
Figure 4. Input OE to output An, Bn 3-State enable and disable
times.
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