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FEATURES
• Operate 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 • Support Mixed-Mode Signal Operation on All
Ports (5-V Input/Output
Voltage With 3.
3-V VCC)
SN54LVC646A .
.
.
JT OR W PACKAGE SN74LVC646A .
.
.
DB, DW, NS, OR PW 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
SN54LVC646A, SN74LVC646A OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCAS302J – JANUARY 1993 – REVISE...