Datasheet

ManualsBrandsNXP SEMICONDUCTORS ManualsLogic ICsLogic IC - Buffer, driver TSSOP 20

1. General description

The 74HC240; 74HCT240 is a high-speed Si-gate CMOS device and is pin compatible

with Low-Power Schottky TTL (LSTTL).

The 74HC240; 74HCT240 is a dual octal inverting buffer/line driver with 3-state outputs.

The 3-state outputs are controlled by the output enable inputs 1OE and 2OE. A HIGH on

nOE causes the outputs to assume a high impedance OFF-state.

The 74HC240; 74HCT240 is similar to the 74HC244; 74HCT244 but has inverting

outputs.

2. Features

■ Inverting 3-state outputs

■ Multiple package options

■ Complies with JEDEC standard no. 7 A

■ ESD protection:

◆ HBM JESD22-A114-D exceeds 2000 V

◆ MM JESD22-A115-A exceeds 200 V

■ Speciﬁed from −40 °Cto+85°C and from −40 °C to +125 °C

3. Ordering information

74HC240; 74HCT240

Octal buffer/line driver; 3-state; inverting

Rev. 03 — 2 August 2007 Product data sheet

Table 1. Ordering information

Type number Package

Temperature range Name Description Version

74HC240

74HC240N −40 °C to +125 °C DIP20 plastic dual in-line package; 20 leads (300 mil) SOT146-1

74HC240D −40 °C to +125 °C SO20 plastic small outline package; 20 leads;

body width 7.5 mm

SOT163-1

74HC240DB −40 °C to +125 °C SSOP20 plastic shrink small outline package; 20 leads;

body width 5.3 mm

SOT339-1

74HC240PW −40 °C to +125 °C TSSOP20 plastic thin shrink small outline package; 20 leads;

body width 4.4 mm

SOT360-1

74HC240BQ −40 °C to +125 °C DHVQFN20 plastic dual-in-line compatible thermal enhanced

very thin quad ﬂat package; no leads; 20 terminals;

body 2.5 × 4.5 × 0.85 mm

SOT764-1

74HCT240

74HCT240N −40 °C to +125 °C DIP20 plastic dual in-line package; 20 leads (300 mil) SOT146-1

Summary of content (18 pages)

PAGE 1
74HC240; 74HCT240 Octal buffer/line driver; 3-state; inverting Rev. 03 — 2 August 2007 Product data sheet 1. General description The 74HC240; 74HCT240 is a high-speed Si-gate CMOS device and is pin compatible with Low-Power Schottky TTL (LSTTL). The 74HC240; 74HCT240 is a dual octal inverting buffer/line driver with 3-state outputs. The 3-state outputs are controlled by the output enable inputs 1OE and 2OE. A HIGH on nOE causes the outputs to assume a high impedance OFF-state.
PAGE 2
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting Table 1. Ordering information …continued Type number Package Temperature range Name Description Version 74HCT240D −40 °C to +125 °C SO20 plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 74HCT240DB −40 °C to +125 °C SSOP20 plastic shrink small outline package; 20 leads; body width 5.
PAGE 3
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting 5. Pinning information 5.
PAGE 4
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting Table 2. Pin description …continued Symbol Pin Description 2A0 17 data input 1Y0 18 bus output 2OE 19 output enable input (active LOW) VCC 20 supply voltage 6. Functional description Table 3. Function table[1] Input Output nOE nAn nYn L L H L H L H X Z [1] H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state. 7. Limiting values Table 4.
PAGE 5
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting 8. Recommended operating conditions Table 5. Recommended operating conditions Symbol Parameter Conditions Min Typ Max Unit 2.0 5.0 6.0 V 74HC240 VCC supply voltage VI input voltage 0 - VCC V VO output voltage 0 - VCC V ∆t/∆V input transition rise and fall rate VCC = 2.0 V - - 625 ns/V VCC = 4.5 V - 1.67 139 ns/V VCC = 6.
PAGE 6
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting Table 6. Static characteristics …continued At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter VOL 25 °C Conditions −40 °C to +85 °C −40 °C to +125 °C Unit Min Typ Max Min Max Min Max LOW-level VI = VIH or VIL output voltage IO = 20 µA; VCC = 2.0 V - 0 0.1 - 0.1 - 0.1 V IO = 20 µA; VCC = 4.5 V - 0 0.1 - 0.1 - 0.1 V IO = 20 µA; VCC = 6.
PAGE 7
4HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting 10. Dynamic characteristics Table 7. Dynamic characteristics GND = 0 V; for load circuit see Figure 8. Symbol Parameter 25 °C Conditions −40 °C to +125 °C Unit Min Typ Max Max (85 °C) Max (125 °C) VCC = 2.0 V - 30 100 125 150 ns VCC = 4.5 V - 11 20 25 30 ns VCC = 5.0 V; CL = 15 pF - 9 - - - ns - 9 17 21 26 ns VCC = 2.0 V - 39 150 190 225 ns VCC = 4.
PAGE 8
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting Table 7. Dynamic characteristics …continued GND = 0 V; for load circuit see Figure 8. Symbol Parameter 25 °C Conditions −40 °C to +125 °C Unit Min Typ Max Max (85 °C) Max (125 °C) VCC = 4.5 V - 11 20 25 30 ns VCC = 5.0 V; CL = 15 pF - 9 - - - ns 74HCT240 [1] propagation delay nAn to nYn; tpd see Figure 6 ten enable time nOE to nYn; VCC = 4.
PAGE 9
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting VI nOE input VM GND t PLZ t PZL VCC nYn output LOW-to-OFF OFF-to-LOW VM VX VOL t PZH t PHZ VOH VY nYn output HIGH-to-OFF OFF-to-HIGH VM GND outputs enabled outputs disabled outputs enabled 001aae014 Measurement points are given in Table 8. VOL and VOH are typical voltage output drop that occur with the output load. Fig 7. 3-state enable and disable times Table 8.
PAGE 10
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting VI tW 90 % negative pulse VM 0V tf tr tr tf VI 90 % positive pulse 0V VM 10 % VM VM 10 % tW VCC VCC PULSE GENERATOR VI VO RL S1 open DUT RT CL 001aad983 Test data is given in Table 9. Definitions test circuit: RT = Termination resistance should be equal to output impedance Zo of the pulse generator. CL = Load capacitance including jig and probe capacitance. RL = Load resistance.
PAGE 11
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting 12. Package outline DIP20: plastic dual in-line package; 20 leads (300 mil) SOT146-1 ME seating plane D A2 A A1 L c e Z b1 w M (e 1) b MH 11 20 pin 1 index E 1 10 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 min. A2 max. b b1 c mm 4.2 0.51 3.2 1.73 1.30 0.53 0.38 0.36 0.23 26.92 26.54 inches 0.17 0.02 0.13 0.068 0.051 0.
PAGE 12
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting SO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 D E A X c HE y v M A Z 20 11 Q A2 A (A 3) A1 pin 1 index θ Lp L 10 1 e detail X w M bp 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y mm 2.65 0.3 0.1 2.45 2.25 0.25 0.49 0.36 0.32 0.23 13.0 12.6 7.6 7.4 1.
PAGE 13
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm D SOT339-1 E A X c HE y v M A Z 20 11 Q A2 A (A 3) A1 pin 1 index θ Lp L 1 10 w M bp e detail X 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y Z (1) θ mm 2 0.21 0.05 1.80 1.65 0.25 0.38 0.25 0.20 0.09 7.4 7.0 5.4 5.2 0.65 7.9 7.
PAGE 14
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm SOT360-1 E D A X c HE y v M A Z 11 20 Q A2 (A 3) A1 pin 1 index A θ Lp L 1 10 e detail X w M bp 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (2) e HE L Lp Q v w y Z (1) θ mm 1.1 0.15 0.05 0.95 0.80 0.25 0.30 0.19 0.2 0.1 6.6 6.4 4.5 4.3 0.
PAGE 15
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting DHVQFN20: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; SOT764-1 20 terminals; body 2.5 x 4.5 x 0.85 mm A B D A A1 E c detail X terminal 1 index area terminal 1 index area C e1 e 2 9 y y1 C v M C A B w M C b L 1 10 Eh e 20 11 19 12 Dh X 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT mm A(1) max. A1 b 1 0.05 0.00 0.30 0.
PAGE 16
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting 13. Abbreviations Table 10. Abbreviations Acronym Description CMOS Complementary Metal Oxide Semiconductor DUT Device Under Test ESD ElectroStatic Discharge HBM Human Body Model MM Machine Model TTL Transistor-Transistor Logic 14. Revision history Table 11.
PAGE 17
74HC240; 74HCT240 NXP Semiconductors Octal buffer/line driver; 3-state; inverting 15. Legal information 15.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification.
PAGE 18
NXP Semiconductors 74HC240; 74HCT240 Octal buffer/line driver; 3-state; inverting 17. Contents 1 2 3 4 5 5.1 5.2 6 7 8 9 10 11 12 13 14 15 15.1 15.2 15.3 15.4 16 17 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Ordering information . . . . . . . . . . . . . . . . . . . . . 1 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 Pinning .