SN54LVCH245A_16 Datasheet, PDF (1/37 Pages) Texas Instruments – Octal Bus Transceivers With 3-State Outputs

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SN54LVCH245A, SN74LVCH245A
SCES008P – JULY 1995 – REVISED JULY 2014
SNx4LVCH245A Octal Bus Transceivers With 3-State Outputs
1 Features
•1 Operate From 1.65 V to 3.6 V
• Inputs Accept Voltages to 5.5 V
• Max t_pd of 6.3 ns at 3.3 V
• Typical V_OLP (Output Ground Bounce)
<0.8 V at V_CC = 3.3 V, T_A = 25°C
• Typical V_OHV (Output V_OH Undershoot)
>2 V at V_CC = 3.3 V, T_A = 25°C
• Support Mixed-Mode Signal Operation on All
Ports (5-V Input/Output Voltage With
3.3-V V_CC)
• I_off Supports Live Insertion, Partial-Power-Down
Mode, and Back-Drive Protection
• Bus Hold on Data Inputs Eliminates the Need for
External Pullup or Pulldown Resistors
• Latch-Up Performance Exceeds 250 mA Per
JESD 17
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
• 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.
2 Applications
• Servers
• PCs and Notebooks
• Network Switches
• Wearable Health and Wellness Devices
• Telecom Infrastructures
• Electronic Points of Sale
3 Description
The SN54LVCH245A octal bus transceiver is
designed for 2.7-V to 3.6-V V_CC operation, and the
SN74LVCH245A octal bus transceiver is designed for
1.65-V to 3.6-V V_CC operation. Inputs can be driven
from either 3.3-V or 5-V devices. This feature allows
the use of these devices as translators in a mixed
3.3-V/5-V system environment.
PART NUMBER
SNx4LVCH245A
Device Information⁽¹⁾
PACKAGE
BODY SIZE (NOM)
SSOP (20)
7.20 mm × 5.30 mm
TVSOP (20)
5.00 mm × 4.40 mm
SOIC (20)
12.80 mm × 7.50 mm
SSOP (20)
12.60 mm × 5.30 mm
TSSOP (20)
6.50 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
4 Simplified Schematic
1
DIR
19
OE
A1 ²
18
B1
To Seven Other Channels
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.