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74HC245; 74HCT245
Octal bus transceiver; 3-state
Rev. 4 — 26 February 2016
Product data sheet
1. General description
The 74HC245; 74HCT245 is an 8-bit transceiver with 3-state outputs. The device features
an output enable (OE) and send/receive (DIR) for direction control. A HIGH on OE causes
the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes. This
enables the use of current limiting resistors to interface inputs to voltages in excess of
VCC.
2. Features and benefits
Complies with JEDEC standard JESD7A
Input levels:
For 74HC245: CMOS level
For 74HCT245: TTL level
Octal bidirectional bus interface
Non-inverting 3-state outputs
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from 40 C to +85 C and from 40 C to +125 C
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range
74HC245D
40 C to +125 C
74HCT245D
74HC245DB 40 C to +125 C
74HCT245DB
74HC245PW 40 C to +125 C
74HCT245PW
74HC245BQ 40 C to +125 C
74HCT245BQ
Name
SO20
SSOP20
TSSOP20
DHVQFN20
Description
plastic small outline package; 20 leads;
body width 7.5 mm
Version
SOT163-1
plastic shrink small outline package; 20 leads; body SOT339-1
width 5.3 mm
plastic thin shrink small outline package; 20 leads;
body width 4.4 mm
SOT360-1
plastic dual-in-line compatible thermal enhanced very SOT764-1
thin quad flat package; no leads; 20 terminals; body
2.5 4.5 0.85 mm
1 page
NXP Semiconductors
74HC245; 74HCT245
Octal bus transceiver; 3-state
9. Static characteristics
Table 6. Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions
25 C
40 C to +85 C 40 C to +125 C Unit
Min Typ Max Min Max Min Max
74HC245
VIH HIGH-level VCC = 2.0 V
input voltage VCC = 4.5 V
1.5 1.2 -
1.5
-
1.5
-V
3.15 2.4 - 3.15
-
3.15
-V
VCC = 6.0 V
4.2 3.2 -
4.2
-
4.2
-V
VIL
LOW-level
VCC = 2.0 V
input voltage VCC = 4.5 V
- 0.8 0.5
-
0.5
-
0.5 V
- 2.1 1.35 -
1.35
-
1.35 V
VCC = 6.0 V
- 2.8 1.8
-
1.8
-
1.8 V
VOH
HIGH-level VI = VIH or VIL
output voltage IO = 20 A; VCC = 2.0 V
1.9 2.0 -
1.9
-
1.9
-V
IO = 20 A; VCC = 4.5 V
4.4 4.5 -
4.4
-
4.4
-V
IO = 20 A; VCC = 6.0 V
5.9 6.0 -
5.9
-
5.9
-V
IO = 6.0 mA; VCC = 4.5 V
3.98 4.32 -
3.84
-
3.7
-V
IO = 7.8 mA; VCC = 6.0 V
5.48 5.81 -
5.34
-
5.2
-V
VOL LOW-level VI = VIH or VIL
output voltage IO = 20 A; VCC = 2.0 V
- 0 0.1
-
0.1
-
0.1 V
IO = 20 A; VCC = 4.5 V
- 0 0.1
-
0.1
-
0.1 V
IO = 20 A; VCC = 6.0 V
- 0 0.1
-
0.1
-
0.1 V
IO = 6.0 mA; VCC = 4.5 V
- 0.15 0.26 - 0.33 -
0.4 V
IO = 7.8 mA; VCC = 6.0 V
- 0.16 0.26 - 0.33 -
0.4 V
II input leakage VI = VCC or GND;
current
VCC = 6.0 V
- - 0.1 -
1.0
-
1.0 A
IOZ
OFF-state
VI = VIH or VIL; VCC = 6.0 V;
output current VO = VCC or GND
- - 0.5 - 5.0 -
10 A
ICC supply current VI = VCC or GND; IO = 0 A;
VCC = 6.0 V
- - 8.0
-
80
-
160 A
CI input
capacitance
- 3.5 -
-
-
-
- pF
CI/O input/output
capacitance
- 10 -
-
-
-
- pF
74HC_HCT245
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 26 February 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
5 of 18
5 Page
NXP Semiconductors
74HC245; 74HCT245
Octal bus transceiver; 3-state
12. Package outline
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Fig 8. Package outline SOT163-1 (SO20)
74HC_HCT245
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 26 February 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
11 of 18
11 Page
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