74HC_HCT7540 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 4 — 31 December 2012 4 of 16
NXP Semiconductors
74HC7540; 74HCT7540
Octal Schmitt trigger buffer/line driver; 3-state; inverting
8. Recommended operating conditions
9. Static characteristics
Table 5. Recommended operating conditions
Voltages are referenced to GND (ground = 0 V)
Symbol Parameter Conditions 74HC7540 74HCT7540 Unit
Min Typ Max Min Typ Max
V
CC
supply voltage 2.0 5.0 6.0 4.5 5.0 5.5 V
V
I
input voltage 0 - V
CC
0- V
CC
V
V
O
output voltage 0 - V
CC
0- V
CC
V
T
amb
ambient temperature 40 +25 +125 40 +25 +125 C
Table 6. Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions T
amb
= 25 C T
amb
= 40 C
to +85 C
T
amb
= 40 C
to +125 C
Unit
Min Typ Max Min Max Min Max
74HC7540
V
OH
HIGH-level
output voltage
V
I
= V
T+
or V
T
I
O
= 20 A; V
CC
= 2.0 V 1.9 2.0 - 1.9 - 1.9 - V
I
O
= 20 A; V
CC
= 4.5 V 4.4 4.5 - 4.4 - 4.4 - V
I
O
= 20 A; V
CC
= 6.0 V 5.9 6.0 - 5.9 - 5.9 - V
I
O
= 6.0 mA; V
CC
= 4.5 V 3.98 4.32 - 3.84 - 3.7 - V
I
O
= 7.8 mA; V
CC
= 6.0 V 5.48 5.81 - 5.34 - 5.2 - V
V
OL
LOW-level
output voltage
V
I
= V
T+
or V
T
I
O
= 20 A; V
CC
= 2.0 V - 0 0.1 - 0.1 - 0.1 V
I
O
= 20 A; V
CC
= 4.5 V - 0 0.1 - 0.1 - 0.1 V
I
O
= 20 A; V
CC
= 6.0 V - 0 0.1 - 0.1 - 0.1 V
I
O
= 6.0 mA; V
CC
= 4.5 V - 0.15 0.26 - 0.33 - 0.4 V
I
O
= 7.8 mA; V
CC
= 6.0 V - 0.16 0.26 - 0.33 - 0.4 V
I
I
input leakage
current
V
I
= V
CC
or GND; V
CC
=6.0V - - 0.1 - 1.0 - 1.0 A
I
OZ
OFF-state
output current
per input pin; V
I
=V
T+
or V
T
;
V
O
=V
CC
or GND;
other inputs at V
CC
or GND;
V
CC
=6.0V; I
O
=0A
--0.5 - 5.0 - 10 A
I
CC
supply current V
I
= V
CC
or GND; I
O
=0A;
V
CC
=6.0V
- - 8.0 - 80 - 160 A
C
I
input
capacitance
-3.5- - - - - pF
74HCT7540
V
OH
HIGH-level
output voltage
V
I
= V
T+
or V
T
; V
CC
= 4.5 V
I
O
= 20 A 4.4 4.5 - 4.4 - 4.4 - V
I
O
= 6.0 mA 3.98 4.32 - 3.84 - 3.7 - V