SN54LVC646A-SP
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SN54LVC646A-SP
www.ti.com ............................................................................................................................................................................................. SCAS865 – OCTOBER 2008
RAD-TOLERANT CLASS V OCTAL BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS
FEATURES
1
Operates From 1.65 V to 3.6 V Inputs Accept
Voltages to 5.5 V Max tpd of 7.4 ns at 3.3 V Typical VOLP (Output Ground Bounce)
<0.8 at VCC = 3.3 V, TA = 25°C Typical VOHV (Output VOH Undershoot)
>2 V at VCC = 3.3 V, TA = 25°C Supports Mixed-Mode Signal Operation on All
Ports (5-V Input/Output
Voltage With 3.3-V VCC) Ioff Supports Partial Power-Down-Mode Operation
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)
– 1000-V Charged-Device Model (C101)
Rad Tolerant: 50kRad (Si) TID (1) – TID Dose Rate 0.10 rad/s
QML-V Qualified, SMD 5962-97626
(1) Radiation tolerance is a typical value based upon initial device qualification. Radiation Lot Acceptance Testing is available – contact factory for details.
W PACKAGE (TOP VIEW)
CLKAB 1 SAB 2 DIR 3 A1 4 A2 5 A3 6 A4 7 A5 8 A6 9 A7 10 A8 11 GND 12
24 VCC 23 CLKBA 22 SBA 21 OE 20 B1 19 B2 18 B3 17 B4 16 B5 15 B6 14 B7 13 B8
DESCRIPTION/ORDERING INFORMATION
The SN54LVC646A octal bus transceiver and register is designed for 2.7-V to 3.6-V VCC operation.
This device consists of bus-transceiver circuits...
