74VHC540FT,74VHC541FT
CMOS Digital Integrated Circuits Silicon Monolithic
74VHC540FT,74VHC541FT74VHC540FT,74VHC541FT74VHC540FT,74VHC541FT74VHC540FT,74VHC541FT
1. 1. Functional DescriptionFunctional Description
1. 1. Functional DescriptionFunctional Description
Octal Bus Buffer
74VHC540FT: Inverted, 3-State Outputs
74VHC541FT: Non-Inverted, 3-State Outputs
2. 2. 2. 2. GeneralGeneralGeneralGeneral
The 74VHC540FT/74VHC541FT 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 74VHC540FT is an inverting type, and the 74VHC541FT is a non-inverting type.
When either G1 or G2 are high, the terminal outputs are in the high-impedance state.
An input protection circuit ensures that 0 to 5.5 V can be applied to the input pins without regard to the supply
voltage. This device can be used to interface 5 V to 3 V systems and two supply systems such as battery back up.
This circuit prevents device destruction due to mismatched supply and input voltages
3. 3. FeaturesFeatures
3. 3. FeaturesFeatures
(1) AEC-Q100 (Rev. H) (Note 1)
(2) Wide operating temperature range: T = -40 to 125
opr
(3) High speed: Propagation delay time = 3.7 ns (typ.) at V = 5.0 V
CC
(4) Low power dissipation: I = 4.0 A (max) at T = 25
CC a
(5) High noise immunity: V = V = 28% V (min)
NIH NIL CC
(6) Power down protection is provided on all inputs.
(7) Balanced propagation delays: t t
PLH PHL
(8) Wide operating voltage range: V = 2.0 V to 5.5 V
CC(opr)
(9) Low noise: V = 1.0 V (max)
OLP
(10) Pin and function compatible with 74 series (74AC/HC/AHC/LV etc.) 540 or 541 type.
Note 1: This device is compliant with the reliability requirements of AEC-Q100. For details, contact your Toshiba sales
representative.
4. 4. 4. 4. PackagingPackagingPackagingPackaging
TSSOP20B
Start of commercial production
2013-03
2017 Toshiba Corporation 2017-02-22
1
Rev.8.074VHC540FT,74VHC541FT
5. 5. 5. 5. Pin AssignmentPin AssignmentPin AssignmentPin Assignment
74VHC540FT 74VHC541FT
6. 6. 6. 6. MarkingMarkingMarkingMarking
74VHC540FT 74VHC541FT
7. 7. 7. 7. IEC Logic SymbolIEC Logic SymbolIEC Logic SymbolIEC Logic Symbol
74VHC540FT 74VHC541FT
2017 Toshiba Corporation 2017-02-22
2
Rev.8.0