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Toshiba Electronic Components Datasheet

TC74VHCT541AF Datasheet

OCTAL BUS BUFFER

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TC74VHCT540,541AF/AFT/AFK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74VHCT540AF,TC74VHCT540AFT,TC74VHCT540AFK
TC74VHCT541AF,TC74VHCT541AFT,TC74VHCT541AFK
Octal Bus Buffer
TC74VHCT540AF/AFT/AFK
Inverted, 3-State Outputs
TC74VHCT541AF/AFT/AFK
Non-Inverted, 3-State Outputs
TC74VHCT540AF, TC74VHCT541AF
The TC74VHCT540A and 541A are advanced high speed
CMOS OCTAL BUS BUFFERs fabricated with silicon gate
C2MOS technology. They achieve the high speed operation
similar to equivalent Bipolar Schottky TTL while maintaining
the CMOS low power dissipation.
The TC74VHCT540A is an inverting type and, the
TC74VHCT541A is a non-inverting type.
When either G1 or G2 are high, the terminal outputs are in
the high-impedance state.
The input voltage are compatible with TTL output voltage.
These devices may be used as a level converter for interfacing
3.3 V to 5 V system.
Input protection and output circuit ensure that 0 to 5.5 V can
be applied to the input and output (Note) pins without regard to
the supply voltage. These structure prevents device destruction
due to mismatched supply and input/output voltages such as
battery back up, hot board insertion, etc.
Note: Output in off-state
Features
High speed: tpd = 5.4 ns (typ.) at VCC = 5 V
Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
Compatible with TTL outputs: VIL = 0.8 V (max)
VIH = 2.0 V (min)
Power down protection is provided on all inputs and outputs
Balanced propagation delays: tpLH ∼− tpHL
Low noise: VOLP = 1.6 V (max)
Pin and function compatible with the 74 series
(74AC/HC/F/ALS/LS etc.) 540/541 type.
TC74VHCT540AFT, TC74VHCT541AFT
TC74VHCT540AFK, TC74VHCT541AFK
Weight
SOP20-P-300-1.27A
: 0.22 g (typ.)
TSSOP20-P-0044-0.65A : 0.08 g (typ.)
VSSOP20-P-0030-0.50 : 0.03 g (typ.)
1 2007-10-01


Toshiba Electronic Components Datasheet

TC74VHCT541AF Datasheet

OCTAL BUS BUFFER

No Preview Available !

Pin Assignment
G1 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND 10
TC74VHCT540A
(top view)
IEC Logic Symbol
20 VCC
19 G2
18 Y1
17 Y2
16 Y3
15 Y4
14 Y5
13 Y6
12 Y7
11 Y8
G1
G2
(1)
(19)
A1 (2)
A2 (3)
A3 (4)
A4 (5)
A5 (6)
A6 (7)
A7 (8)
A8 (9)
TC74VHCT540A
& EN
(18) Y1
(17) Y2
(16) Y3
(15) Y4
(14) Y5
(13) Y6
(12) Y7
(11) Y8
Truth Table
Inputs
G1 G2 An
HXX
XHX
L LH
LLL
X: Don’t care
Z: High impedance
Yn: VHCT541A
Yn : VHCT540A
Outputs
Yn Yn
ZZ
ZZ
HL
LH
TC74VHCT540,541AF/AFT/AFK
G1 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND 10
TC74VHCT541A
(top view)
20 VCC
19 G2
18 Y1
17 Y2
16 Y3
15 Y4
14 Y5
13 Y6
12 Y7
11 Y8
G1
G2
(1)
(19)
A1 (2)
A2 (3)
A3 (4)
A4 (5)
A5 (6)
A6 (7)
A7 (8)
A8 (9)
TC74VHCT541A
& EN
(18) Y1
(17) Y2
(16) Y3
(15) Y4
(14) Y5
(13) Y6
(12) Y7
(11) Y8
2 2007-10-01


Part Number TC74VHCT541AF
Description OCTAL BUS BUFFER
Maker Toshiba Semiconductor
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TC74VHCT541AF Datasheet PDF






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