SN54HC125_15 Datasheet, PDF (1/28 Pages) Texas Instruments – Quadruple Bus Buffer Gates

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
SN54HC125
SN74HC125
SCLS104E – AUGUST 1984 – REVISED DECEMBER 2015
SNx4HC125 Quadruple Bus Buffer Gates With 3-State Outputs
1 Features
•1 Wide Operating Voltage Range of 2 V to 6 V
• High-Current 3-State Outputs Interface Directly
With System Bus or Can Drive Up to 15 LSTTL
Loads
• Low Power Consumption, 80-µA Maximum I_CC
• Typical t_pd = 11 ns
• ±6-mA Output Drive at 5 V
• Low Input Current of 1 µA Maximum
2 Applications
• TV Set-Top Boxes and DVRs
• E-meters
• Smart Grids: Transmission Line Monitoring
• Printers and Computer Peripherals
• Building Security: Control Panels
• IP Phones
• Test and Measurement: Range Readers
• Smart Grids: Distribution Feeder Protection Relay
3 Description
The SNx4HC125 device is a quadruple set of bus
buffer gates and features independent line drivers
with 3-state outputs. The SNx4HC125 is designed for
2-V to 6-V V_CC operation. Each output is disabled
when the associated output-enable (OE) input is high.
To ensure the high-impedance state during power up
or power down, OE should be tied to V_CC through a
pullup resistor; the minimum value of the resistor is
determined by the current-sinking capability of the
driver.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SN74HC125N PDIP (14)
18.30 mm × 6.35 mm
SN74HC125D SOIC (14)
8.65 mm × 6.00 mm
SN74HC125W SO (14)
10.20 mm × 5.30 mm
SN74HC125DB SSOP (14)
6.20 mm × 5.30 mm
SN74HC125PW TSSOP (14)
5.00 mm × 4.40 mm
SN54HC125J CDIP (14)
19.90 mm × 6.90 mm
SN54HC125FK LCCC (20)
8.90 mm × 8.44 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
1
1OE
Logic Diagram (Positive Logic)
10
3OE
2
1A
3
1Y
9
3A
8
3Y
4
2OE
5
2A
6
2Y
13
4OE
12
4A
Pin numbers shown are for the D, DB, J, N, NS, PW, and W packages.
11
4Y
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
On products compliant to MIL-PRF-38535, all parameters are
tested unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.