74ABT646ADB,112 NXP Semiconductors, 74ABT646ADB,112 Datasheet - Page 5

• Manufacturer Part Number: 74ABT646ADB,112
• Description: IC TRANSCVR 8BIT N-INV 24SSOP
• Manufacturer: NXP Semiconductors
• Series: 74ABTr

Specifications of 74ABT646ADB,112

• Logic Type: Registered Transceiver, Non-Inverting
• Package / Case: 24-SSOP
• Number Of Elements: 1
• Number Of Bits Per Element: 8
• Current - Output High, Low: 32mA, 64mA
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Logic Family: ABT
• Number Of Channels Per Chip: 8
• Input Level: TTL
• Output Level: TTL
• Output Type: 3-State
• High Level Output Current: - 32 mA
• Low Level Output Current: 64 mA
• Propagation Delay Time: 5.2 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 85 C
• Function: Bus Transceiver / Register
• Input Bias Current (max): 30000 uA
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Polarity: Non-Inverting
• Number Of Circuits: 1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 74ABT646ADB; 74ABT646ADB; 935192640112

NXP Semiconductors
6. Functional description
Table 3.
[1]
[2]
74ABT646A_3
Product data sheet
Inputs
OE
X
X
H
H
L
L
L
L
H = HIGH voltage level;
L = LOW voltage level;
X = don’t care;
The data output function may be enabled or disabled by various signals at the OE input. Data input functions are always enabled,
i.e. data at the bus pins will be stored on every LOW-to-HIGH transition of the clock.
= LOW-to-HIGH clock transition;
DIR
X
X
X
X
L
L
H
H
Function table
CPAB
X
H or L
X
X
X
H or L
[1]
CPBA
X
H or L
X
H or L
X
X
All information provided in this document is subject to legal disclaimers.
SAB
X
X
X
X
X
X
L
H
Rev. 03 — 15 March 2010
SBA
X
X
X
X
L
H
X
X
Data I/O
An
input
unspecified
output
input
input
output
output
input
input
[2]
Octal bus transceiver/register; 3-state
Bn
unspecified
output
input
input
input
input
input
output
output
[2]
Operating mode
store A, B unspecified
store B, A unspecified
store A and B data
isolation, hold storage
real time B data to A bus
stored B data to A bus
real time A data to B bus
stored A data to B bus
74ABT646A
© NXP B.V. 2010. All rights reserved.
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