74HC245PW NXP Semiconductors, 74HC245PW Datasheet

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74HC245PW

Manufacturer Part Number
74HC245PW
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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74HC245PW 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 ...

Page 2

... number of inputs switching Ordering information Table 2: Ordering information Type number Package Temperature range Name 74HC245N +125 C 74HC245D +125 C 74HC245PW +125 C 74HC245DB +125 C 74HC245BQ +125 C 74HCT245N +125 C 74HCT245D +125 C 74HCT245PW +125 C 74HCT245DB ...

Page 3

Philips Semiconductors 5. Functional diagram Fig 1. Logic symbol 9397 750 14502 Product data sheet DIR ...

Page 4

Philips Semiconductors 6. Pinning information 6.1 Pinning DIR GND Fig 3. Pin configuration DIP20, SO20, 6.2 Pin description Table 3: Symbol DIR GND B7 ...

Page 5

Philips Semiconductors Table 3: Symbol Functional description 7.1 Function table Table 4: Input [ HIGH voltage level LOW voltage level don’t care ...

Page 6

Philips Semiconductors 9. Recommended operating conditions Table 6: Symbol Type 74HC245 amb Type 74HCT245 amb 10. ...

Page 7

Philips Semiconductors Table 7: Static characteristics type 74HC245 At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter V LOW-level output voltage OL I input leakage current LI I OFF-state output current OZ I quiescent ...

Page 8

Philips Semiconductors Table 7: Static characteristics type 74HC245 At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter V LOW-level input voltage IL V HIGH-level output voltage OH V LOW-level output voltage OL I input ...

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 ...

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 ...

Page 11

Philips Semiconductors Table 9: Dynamic characteristics type 74HC245 GND = 0 V; test circuit see Figure Symbol Parameter 3-state output enable time OE to PZH PZL 3-state output disable ...

Page 12

Philips Semiconductors Table 10: Dynamic characteristics type 74HCT245 GND = 0 V; test circuit see Figure Symbol Parameter amb propagation delay PHL PLH ...

Page 13

Philips Semiconductors 12. Waveforms Fig 5. Input (An, Bn) to output (Bn, An) propagation delays and output transition times Fig 6. 3-state output enable and disable times Table 11: Type 74HC245 74HCT245 9397 750 14502 Product data sheet V I ...

Page 14

Philips Semiconductors Fig 7. Load circuitry for switching times Table 12: Type 74HC245 74HCT245 9397 750 14502 Product data sheet V I PULSE GENERATOR R T Test data is given in Table 12. Definitions test circuit Termination resistance ...

Page 15

Philips Semiconductors 13. Package outline DIP20: plastic dual in-line package; 20 leads (300 mil pin 1 index 1 DIMENSIONS (inch dimensions are derived from the original mm dimensions UNIT max. min. max. ...

Page 16

Philips Semiconductors SO20: plastic small outline package; 20 leads; body width 7 pin 1 index 1 e DIMENSIONS (inch dimensions are derived from the original mm dimensions) A UNIT max. ...

Page 17

Philips Semiconductors SSOP20: plastic shrink small outline package; 20 leads; body width 5 pin 1 index 1 e DIMENSIONS (mm are the original dimensions) A UNIT max. 0.21 1.80 mm ...

Page 18

Philips Semiconductors TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4 pin 1 index 1 DIMENSIONS (mm are the original dimensions) A UNIT max. 0.15 0.95 mm ...

Page 19

Philips Semiconductors DHVQFN20: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 20 terminals; body 2.5 x 4.5 x 0.85 mm terminal 1 index area terminal 1 index area ...

Page 20

Philips Semiconductors 14. Revision history Table 13: Revision history Document ID Release date 74HC_HCT245_3 20050131 • Modifications: The format of this data sheet is redesigned to comply with the new presentation and information standard of Philips Semiconductors • Section 4 ...

Page 21

Philips Semiconductors 15. Data sheet status [1] Level Data sheet status Product status I Objective data Development II Preliminary data Qualification III Product data Production [1] Please consult the most recently issued data sheet before initiating or completing a design. ...

Page 22

Philips Semiconductors 19. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . ...

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