74HCT245 NXP Semiconductors, 74HCT245 Datasheet

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74HCT245

Manufacturer Part Number
74HCT245
Description
Manufacturer
NXP Semiconductors
Datasheet

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1. General description
2. Features
3. Quick reference data
The 74HC245; 74HCT245 is a high-speed Si-gate CMOS device and is pin compatible
with Low-Power Schottky TTL (LSTTL).
The 74HC245; 74HCT245 is an octal transceiver featuring non-inverting 3-state bus
compatible outputs in both send and receive directions. The 74HC245; 74HCT245
features an output enable input (OE) for easy cascading and a send/receive input (DIR)
for direction control. OE controls the outputs so that the buses are effectively isolated.
The 74HC245; 74HCT245 is similar to the 74HC640; 74HCT640 but has true
(non-inverting) outputs.
Table 1:
GND = 0 V; T
Symbol
Type 74HC245
t
C
C
C
Type 74HCT245
t
PHL
PHL
I
I/O
PD
74HC245; 74HCT245
Octal bus tranceiver; 3-state
Rev. 03 — 31 January 2005
Octal bidirectional bus interface
Non-inverting 3-state outputs
Multiple package options
Complies with JEDEC standard no. 7A
ESD protection:
Specified from 40 C to +85 C and from 40 C to +125 C
, t
, t
PLH
PLH
HBM EIA/JESD22-A114-B exceeds 2000 V
MM EIA/JESD22-A115-A exceeds 200 V
Quick reference data
Parameter
propagation delay
An to Bn or Bn to An
input capacitance
input/output capacitance
power dissipation
capacitance per
transceiver
propagation delay
An to Bn or Bn to An
amb
= 25 C; t
r
= t
f
= 6 ns.
Conditions
C
V
V
C
V
CC
I
CC
L
L
= GND to V
= 15 pF;
= 15 pF;
= 5 V
= 5 V
CC
[1]
Product data sheet
Min
-
-
-
-
-
Typ
7
3.5
10
30
10
Max
-
-
-
-
-
Unit
ns
pF
pF
pF
ns

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74HCT245 Summary of contents

Page 1

... Octal bus tranceiver; 3-state Rev. 03 — 31 January 2005 1. General description The 74HC245; 74HCT245 is a high-speed Si-gate CMOS device and is pin compatible with Low-Power Schottky TTL (LSTTL). The 74HC245; 74HCT245 is an octal transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. The 74HC245; 74HCT245 features an output enable input (OE) for easy cascading and a send/receive input (DIR) for direction control ...

Page 2

... SSOP20 plastic shrink small outline package; 20 leads; body width 5.3 mm DHVQFN20 plastic dual-in-line compatible thermal enhanced very thin quad flat package no leads; 20 terminals; body 2.5 Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state Min Typ - 3 [1] ...

Page 3

... mna174 Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state 3EN1 3EN2 mna175 Fig 2. IEC logic symbol © Koninklijke Philips Electronics N.V. 2005. All rights reserved. ...

Page 4

... V) 11 data input/output 12 data input/output 13 data input/output 14 data input/output 15 data input/output 16 data input/output Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state terminal 1 index area 245 ...

Page 5

... DIP20 package SO20, SSOP20, TSSOP20 and DHVQFN20 packages derates linearly with 12 mW/K. tot derates linearly with 8 mW/K. tot derates linearly with 4.5 mW/K. tot Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state Input/output input input Min 0.5 > ...

Page 6

... 6 7 Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state Min Typ Max 2.0 5.0 6 1000 - 6.0 500 - - 400 40 - +125 4.5 5.0 5 ...

Page 7

... LOW-level output voltage OL I input leakage current LI I OFF-state output current OZ I quiescent supply current +125 C amb V HIGH-level input voltage IH 9397 750 14502 Product data sheet 74HC245; 74HCT245 …continued Conditions 2 4 ...

Page 8

... OH V LOW-level output voltage OL I input leakage current LI I OFF-state output current OZ I quiescent supply current CC Table 8: Static characteristics type 74HCT245 At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter amb V HIGH-level input voltage IH V LOW-level input voltage IL V ...

Page 9

... Philips Semiconductors Table 8: Static characteristics type 74HCT245 At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter I additional quiescent supply CC current per input pin inputs OE input DIR input C input capacitance I C input/output capacitance I +85 C amb V HIGH-level input voltage ...

Page 10

... Philips Semiconductors Table 8: Static characteristics type 74HCT245 At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter I quiescent supply current CC I additional quiescent supply CC current per input pin inputs OE input DIR input 11. Dynamic characteristics Table 9: Dynamic characteristics type 74HC245 GND = 0 V ...

Page 11

... see Figure see Figure where Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state Min Typ Max - - 190 - - 190 - - 135 - - ...

Page 12

... Philips Semiconductors Table 10: Dynamic characteristics type 74HCT245 GND = 0 V; test circuit see Figure Symbol Parameter amb propagation delay PHL PLH 3-state output enable time OE to PZH PZL 3-state output disable time OE to ...

Page 13

... Measurement points are given in Table V and V are typical voltage output drop that occur with the output load Measurement points Input V M 0.5V CC 1.3 V Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state PHL PLH ...

Page 14

... Load capacitance including jig and probe capacitance Load resistor. L Test data Input Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state D.U.T open mgk563 of the pulse generator. o ...

Page 15

... 1.73 0.53 0.36 26.92 6.40 1.30 0.38 0.23 26.54 6.22 0.068 0.021 0.014 1.060 0.25 0.051 0.015 0.009 1.045 0.24 REFERENCES JEDEC JEITA MS-001 SC-603 Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state 3.60 8.25 10.0 2.54 7.62 3.05 7.80 8.3 0.14 0.32 ...

Page 16

... 0.49 0.32 13.0 7.6 10.65 1.27 0.36 0.23 12.6 7.4 10.00 0.019 0.013 0.51 0.30 0.419 0.05 0.014 0.009 0.49 0.29 0.394 REFERENCES JEDEC JEITA MS-013 Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state detail 1.1 1.1 1.4 0.25 0.25 0.4 1.0 0.043 0.043 0.055 0.01 0.01 ...

Page 17

... 2.5 scale (1) ( 0.38 0.20 7.4 5.4 7.9 0.65 0.25 0.09 7.0 5.2 7.6 REFERENCES JEDEC JEITA MO-150 Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state detail 1.03 0.9 1.25 0.2 0.13 0.63 0.7 EUROPEAN PROJECTION © Koninklijke Philips Electronics N.V. 2005. All rights reserved. ...

Page 18

... Product data sheet 2.5 scale (1) ( 0.30 0.2 6.6 4.5 0.65 0.19 0.1 6.4 4.3 REFERENCES JEDEC JEITA MO-153 Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state detail 6.6 0.75 0.4 1 0.2 0.13 6.2 0.50 0.3 EUROPEAN PROJECTION © ...

Page 19

... 2.5 scale (1) ( 4.6 3.15 2.6 1.15 0.5 3.5 4.4 2.85 2.4 0.85 REFERENCES JEDEC JEITA MO-241 - - - Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state detail 0.5 0.05 0.1 0.1 0.05 0.3 EUROPEAN PROJECTION © Koninklijke Philips Electronics N.V. 2005. All rights reserved. ...

Page 20

... Change notice Product data sheet - information”, Section 6 “Pinning information” are modified to include the DHVQFN20 package. Product specification - Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state Doc. number Supersedes 9397 750 14502 74HC_HCT245_CNV_2 and Section 13 “Package - - © ...

Page 21

... Rev. 03 — 31 January 2005 74HC245; 74HCT245 Octal bus tranceiver; 3-state © Koninklijke Philips Electronics N.V. 2005. All rights reserved ...

Page 22

... Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 17 Disclaimers Contact information . . . . . . . . . . . . . . . . . . . . 21 74HC245; 74HCT245 Octal bus tranceiver; 3-state © Koninklijke Philips Electronics N.V. 2005 All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice ...

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