Document
74AHC541; 74AHCT541
Octal buffer/line driver; 3-state
Rev. 4 — 14 April 2020
Product data sheet
1. General description
The 74AHC541; 74AHCT541 is a high-speed Si-gate CMOS device. The 74AHC541; 74AHCT541 are octal non-inverting buffer/line drivers with 3-state bus compatible outputs. The 3-state outputs are controlled by the output enable inputs OE0 and OE1. A HIGH on OEn causes the outputs to assume a high-impedance OFF-state.
2. Features
• Balanced propagation delays • All inputs have a Schmitt-trigger action • Inputs accepts voltages higher than VCC • For 74AHC541 only: operates with CMOS input levels • For 74AHCT541 only: operates with TTL input levels • ESD protection:
• HBM JESD22-A114E exceeds 2000 V • MM JESD22-A115-A exceeds 200 V • CDM JESD22-C101C exceeds 1000 V • Multiple package options • Specified from -40 °C to +85 °C and from -40 °C to +125 °C
3. Ordering information
Table 1. Ordering information Type number Package
Temperature range Name
74AHC541D
-40 °C to +125 °C SO20
74AHCT541D
74AHC541PW -40 °C to +125 °C TSSOP20
74AHCT541PW
74AHC541BQ -40 °C to +125 °C DHVQFN20
74AHCT541BQ
Description
plastic small outline package; 20 leads; body width 7.5 mm
plastic thin shrink small outline package; 20 leads; body width 4.4 mm
plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 20 terminals; body 2.5 × 4.5 × 0.85 mm
Version SOT163-1
SOT360-1
SOT764-1
Nexperia
4. Functional diagram
2 A0 3 A1 4 A2 5 A3 6 A4
Y0 18 Y1 17 Y2 16 Y3 15 Y4 14
7 A5
Y5 13
8 A6 9 A7
Y6 12 Y7 11
OE0 1
OE1 19
Fig. 1. Logic symbol
mna179
74AHC541; 74AHCT541
Octal buffer/line driver; 3-state
1& 19 EN
2 3 4 5 6 7 8 9
Fig. 2. IEC logic symbol
mna180
18
17 16 15 14 13 12 11
74AHC_AHCT541
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 14 April 2020
© Nexperia B.V. 2020. All rights reserved
2 / 15
Nexperia
5. Pinning information
74AHC541; 74AHCT541
Octal buffer/line driver; 3-state
5.1. Pinning
74AHC541 74AHCT541
OE0 1 A0 2 A1 3 A2 4 A3 5 A4 6 A5 7 A6 8 A7 9
GND 10
20 VCC 19 OE1 18 Y0 17 Y1 16 Y2 15 Y3 14 Y4 13 Y5 12 Y6 11 Y7
001aah038
Fig. 3. Pin configuration SOT163-1 (SO20) and SOT360-1 (TSSOP20)
terminal 1 index area
74AHC541 74AHCT541
1 OE0 20 VCC
A0 2 A1 3 A2 4 A3 5 A4 6 A5 7 A6 8 A7 9
GND(1)
19 OE1 18 Y0 17 Y1 16 Y2 15 Y3 14 Y4 13 Y5 12 Y6
GND 10 Y7 11
001aah039
Fig. 4.
Transparent top view
(1) This is not a ground pin. There is no electrical or mechanical requirement to solder the pad. In case soldered, the solder land should remain floating or connected to GND.
Pin configuration SOT764-1 (DHVQFN20)
5.2. Pin description
Table 2. Pin description Symbol OE0 A0, A1, A2, A3, A4, A5, A6, A7 GND Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7 OE1 VCC
Pin 1 2, 3, 4, 5, 6, 7, 8, 9 10 18, 17, 16, 15, 14, 13, 12, 11 19 20
Description output enable input (active LOW) data input ground (0 V) data output output enable input (active LOW) supply voltage
6. Functional description
Table 3. Functional table H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
Control OE0 L
OE1 L
Input An L
Output Yn L
L L HH
XHXZ
HXXZ
74AHC_AHCT541
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 14 April 2020
© Nexperia B.V. 2020. All rights reserved
3 / 15
Nexperia
74AHC541; 74AHCT541
Octal buffer/line driver; 3-state
7. Limiting values
Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
Min Max Unit
VCC VI IIK IOK IO ICC IGND Tstg Ptot
supply voltage input voltage input clamping current output clamping current output current supply current ground current storage temperature total power dissipation
VI < -0.5 V VO < -0.5 V or VO > VCC + 0.5 V VO = -0.5 V to (VCC + 0.5 V)
Tamb = -40 °C to +125 °C
-0.5 -0.5 [1] -20 [1] -
-75 -65 [2] -
+7.0 +7.0
±20 ±25 75
+150 500
V V mA mA mA mA mA °C mW
[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed. [2] For SOT163-1 (SO20) package: Ptot derates linearly with 12.3 mW/K above 109 °C.
For SOT360-1 (TSSOP20) package: Ptot derates linearly with 10.0 mW/K above 100 °C. For SOT764-1 (DHVQFN20) package: Ptot derates linearly with 12.9 mW/K above 111 °C.
8. Recommended operating conditions
Table 5. Recommended operating conditions Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
VCC VI VO Tamb Δt/ΔV
supply voltage input voltage output voltage ambient temperature input transition rise and fall rate VCC = 3.3 V ± 0.3 V
VCC = 5.0 V ± 0.5 V
74AHC541 Min Typ Max 2.0 5.0 5.5
0 - 5.5 0 - VCC -40 +25 +125 - - 100 - - 20
74AHCT541
Unit
Min Typ Max
4.5 5.0 5.5 V
0 - 5.5 V
0 - VCC V -40 +25 +125 °C
- - - ns/V
- - 20 ns/V
74AHC_AH.