74AVCH2T45DC,125 NXP Semiconductors, 74AVCH2T45DC,125 Datasheet - Page 16

• Manufacturer Part Number: 74AVCH2T45DC,125
• Description: IC TXRX BUS 2BIT DUAL 3ST 8VSSOP
• Manufacturer: NXP Semiconductors
• Series: 74AVCHr

Specifications of 74AVCH2T45DC,125

• Logic Function: Translator, Bidirectional, 3-State
• Number Of Bits: 2
• Input Type: Voltage
• Output Type: Voltage
• Number Of Channels: 2
• Number Of Outputs/channel: 1
• Differential - Input:output: No/No
• Propagation Delay (max): 2.7ns
• Voltage - Supply: 0.8 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: US8, 8-VSSOP
• Supply Voltage: 0.8 V ~ 3.6 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Rate: -
• Other names: 74AVCH2T45DC-G; 74AVCH2T45DC-G; 935283721125

NXP Semiconductors
74AVCH2T45
Product data sheet
13.2 Bidirectional logic level-shifting application
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 17
and then from system-2 to system-1.
Table 17.
[1]
State DIR CTRL I/O-1
1
2
3
4
Fig 10. Bidirectional logic level-shifting application
H = HIGH voltage level;
L = LOW voltage level;
Z = high-impedance OFF-state.
H
H
L
L
gives a sequence that will illustrate data transmission from system-1 to system-2
shows the 74AVCH2T45 being used in a bidirectional logic level-shifting
Bidirectional logic level-shifting application
DIR CTRL
V
I/O-1
CC1
system-1
All information provided in this document is subject to legal disclaimers.
output
Z
Z
input
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
Rev. 4 — 24 November 2010
V
CC1
V
I/O-2
input
Z
Z
output
CC(A)
GND
1A
2A
1
2
3
4
74AVCH2T45
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 bus hold.
DIR bit is set LOW. I/O-1 and I/O-2 still are disabled.
The bus-line state depends on bus hold.
system-1 data to system-2
system-2 data to system-1
8
7
6
5
[1]
V
1B
2B
DIR
CC(B)
74AVCH2T45
V
CC2
system-2
© NXP B.V. 2010. All rights reserved.
V
I/O-2
CC2
001aag586
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