SCLS128 Data sheet

SCLS128H December 1982 – August 2024 SN54HC240 , SN74HC240

PRODUCTION DATA

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)

DB|20
NS|20
N|20
DGS|20
DW|20
PW|20

Thermal pad, mechanical data (Package|Pins)

Orderable Information

4.2 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)⁽¹⁾

			SN54HC240			SN74HC240			UNIT
			MIN	NOM	MAX	MIN	NOM	MAX	UNIT
V_CC	Supply voltage		2	5	6	2	5	6	V
V_IH	High-level input voltage	V_CC = 2 V	1.5			1.5			V
		V_CC = 4.5 V	3.15			3.15
		V_CC = 6 V	4.2			4.2
V_IL	Low-level input voltage	V_CC = 2 V			0.5			0.5	V
		V_CC = 4.5 V			1.35			1.35
		V_CC = 6 V			1.8			1.8
V_I	Input voltage		0		V_CC	0		V_CC	V
V_O	Output voltage		0		V_CC	0		V_CC	V
∆t/∆v	Input transition rise and fall time	V_CC = 2 V			1000			1000	ns
		V_CC = 4.5 V			500			500
		V_CC = 6 V			400			400
T_A	Operating free-air temperature		–55		125	–40		85	°C

(1) All unused inputs of the device must be held at V_CC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.