SN74AHC8541 Datasheet, PDF (1/9 Pages) Texas Instruments – 8-BIT INVERTING/NON-INVERTING SCHMITT-TRIGGER BUFFER WITH 3-STATE OUTPUTS

SN74AHC8541
www.ti.com ..................................................................................................................................................................................................... SCLS716 – APRIL 2009
8-BIT INVERTING/NON-INVERTING SCHMITT-TRIGGER BUFFER WITH 3-STATE OUTPUTS
FEATURES
1
• Operating Range of 2 V to 5.5 V V_CC
• 8-Bit Inverting/Non-Inverting Outputs
• 20-Pin Thin Shrink Small-Outline Package
[TSSOP (PW)] and 20-Pin Plastic Dual-In-Line
Package [PDIP (N)]
N OR PW PACKAGE
(TOP VIEW)
T/C 1
D1 2
D2 3
D3 4
D4 5
D5 6
D6 7
D7 8
D8 9
GND 10
20 ^V_CC
19 Y1
18 Y2
17 Y3
16 Y4
15 Y5
14 Y6
13 Y7
12 Y8
11 OE
DESCRIPTION
The SN74AHC8541 8-bit inverting/non-inverting buffers are ideal for driving bus lines or buffer memory address
registers. These devices feature inputs and outputs on opposite sides of the package to facilitate printed circuit
board layout.
All outputs are in the high-impedance state (disabled) when the output-enable (OE) input is high. When OE is
low, the respective gate passes the data from the D input to its Y output.
The T/C input selects inverting or non-inverting data transfer. When the T/C input is high, it provides
non-inverting buffers. When the T/C input is low, it provides inverting buffers when they are not in the
high-impedance state.
To ensure the high-impedance state during power up or power down, OE should be tied to V_CC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
FUNCTION TABLE
(EACH BUFFER)⁽¹⁾
INPUTS
OE
T/C
D
L
H
H
L
H
L
L
L
H
L
L
L
H
X
X
OUTPUT
Y
H
L
L
H
Z
(1) L: Low-level
H: High-level
X: Irrelevant
Z: High-impedance (off)
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009, Texas Instruments Incorporated