SN74LVC646A
SN74LVC646A is OCTAL BUS TRANSCEIVERS.REGISTERS manufactured by Texas Instruments.
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
- REVISED AUGUST 2005
- Ioff Supports Partial-Power-Down Mode Operation
- Latch-Up Performance Exceeds 250 m A 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) xxxx
SN54LVC646A . . . FK PACKAGE (TOP VIEW)
DIR SAB CLKAB NC VCC CLKBA SBA
4 3 2 1 28 27 26
A1 5
25 OE
A2 6
24 B1
A3 7
23 B2
NC 8
22 NC
A4 9
21 B3
A5 10
20...
