74AUP1T45GF,132 NXP Semiconductors, 74AUP1T45GF,132 Datasheet - Page 26

• Manufacturer Part Number: 74AUP1T45GF,132
• Description: Bus Transceivers 3.6V 250mW 31.2ns
• Manufacturer: NXP Semiconductors

Specifications of 74AUP1T45GF,132

• Rohs: yes
• Propagation Delay Time: 31.2 ns
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 1.1 V
• Maximum Operating Temperature: + 125 C
• Package / Case: XSON-6
• Maximum Power Dissipation: 250 mW
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 5000

NXP Semiconductors
74AUP1T45
Product data sheet
Fig 10. Bidirectional logic level-shifting application
System-1 and system-2 must use the same conditions, i.e., both pull-up or both pull-down.
DIR CTRL
I/O-1
V
CC1
13.2 Bidirectional logic level-shifting application
System-1
Figure 10
application. Since the device does not have an output enable (OE) pin, the system
designer should take precautions to avoid bus contention between system-1 and
system-2 when changing directions.
Table 12
and then from system-2 to system-1.
Table 12.
[1]
[2]
State DIR CTRL I/O-1
1
2
3
4
PULL-UP/DOWN
BUSHOLD
System-1 and system-2 must use the same conditions, i.e., both pull-up or both pull-down.
H = HIGH voltage level;
L = LOW voltage level;
Z = high-impedance OFF-state.
OR
H
H
L
L
gives a sequence that will illustrate data transmission from system-1 to system-2
shows the 74AUP1T45 being used in a bidirectional logic level-shifting
Description bidirectional logic level-shifting application
V
CC1
All information provided in this document is subject to legal disclaimers.
output
Z
Z
input
V
CC(A)
GND
Rev. 5 — 9 August 2012
A
1
2
3
I/O-2
input
Z
Z
output
74AUP1T45
Low-power dual supply translating transceiver; 3-state
Description
system-2 is getting ready to send data to system-1.
I/O-1 and I/O-2 are disabled. The bus-line state
depends on the pull-up or pull-down.
DIR bit is flipped. I/O-1 and I/O-2 still are disabled. The
bus-line state depends on the pull-up or pull-down.
system-1 data to system-2
system-2 data to system-1
6
5
4
V
DIR
B
CC(B)
V
CC2
PULL-UP/DOWN
BUSHOLD
OR
System-2
[1][2]
74AUP1T45
© NXP B.V. 2012. All rights reserved.
V
I/O-2
CC2
001aae970
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