74VHCV540FT,74VHCV541FT
CMOS Digital Integrated Circuits Silicon Monolithic
74VHCV540FT,74VHCV541FT74VHCV540FT,74VHCV541FT74VHCV540FT,74VHCV541FT74VHCV540FT,74VHCV541FT
1. 1. Functional DescriptionFunctional Description
1. 1. Functional DescriptionFunctional Description
Octal Schmitt Bus Buffer
74VHCV540FT: Inverted, 3-State Outputs
74VHCV541FT: Non-Inverted, 3-State Outputs
2. 2. 2. 2. GeneralGeneralGeneralGeneral
The 74VHCV540FT and 74VHCV541FT are advanced high speed CMOS OCTAL BUS BUFFERs fabricated with
silicon gate CMOS technology.
They achieve the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS
low power dissipation.
The 74VHCV540FT is an inverting type, and the 74VHCV541FT is a non-inverting type.
When either G1 or G2 are high, the terminal outputs are in the high-impedance state.
Input pin have hysteresis between the positive-going and negative-going thresholds. Thus the 74VHCV540FT
and 74VHCV541FT are capable of squaring up transitions of slowly changing input signals and provides an
improved noise immunity.
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
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: t = 4.1 ns (typ.) at V = 5.0 V
pd CC
(4) Low power dissipation: I = 2.0 A (max) at T = 25
CC a
(5) Wide operating voltage range: V = 1.8 V to 5.5 V
CC(opr)
(6) Output current: |I |/I = 16 mA (min)(V = 4.5 V)
OH OL CC
(7) Power-down protection provided on all inputs and outputs.
(8) Pin and function compatible with the 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.
Start of commercial production
2014-04
2016 Toshiba Corporation 2016-08-05
1
Rev.2.074VHCV540FT,74VHCV541FT
4. 4. 4. 4. PackagingPackagingPackagingPackaging
TSSOP20B
5. 5. 5. 5. Pin AssignmentPin AssignmentPin AssignmentPin Assignment
74VHCV540FT 74VHCV541FT
6. Marking
6. 6. 6. MarkingMarkingMarking
74VHCV540FT 74VHCV541FT
2016 Toshiba Corporation 2016-08-05
2
Rev.2.0