Important notice
Dear Customer,
On 7 February 2017 the former NXP Standard Product business became a new company with the
tradename Nexperia. Nexperia is an industry leading supplier of Discrete, Logic and PowerMOS
semiconductors with its focus on the automotive, industrial, computing, consumer and wearable
application markets
In data sheets and application notes which still contain NXP or Philips Semiconductors references, use
the references to Nexperia, as shown below.
Instead of http://www.nxp.com, http://www.philips.com/ or http://www.semiconductors.philips.com/,
use http://www.nexperia.com
Instead of sales.addresses@www.nxp.com or sales.addresses@www.semiconductors.philips.com, use
salesaddresses@nexperia.com (email)
Replace the copyright notice at the bottom of each page or elsewhere in the document, depending on
the version, as shown below:
- © NXP N.V. (year). All rights reserved or © Koninklijke Philips Electronics N.V. (year). All rights
reserved
Should be replaced with:
- © Nexperia B.V. (year). All rights reserved.
If you have any questions related to the data sheet, please contact our nearest sales office via e-mail
or telephone (details via salesaddresses@nexperia.com). Thank you for your cooperation and
understanding,
Kind regards,
Team Nexperia
1. General description
The 74HC3G34; 74HCT3G34 is a triple buffer. Inputs include clamp diodes. This enables
the use of current limiting resistors to interface inputs to voltages in excess of V
CC
.
2. Features and benefits
Wide supply voltage range from 2.0 V to 6.0 V
Input levels:
For 74HC3G34: CMOS level
For 74HCT3G34: TTL level
Complies with JEDEC standard no. 7 A
Symmetrical output impedance
High noise immunity
Low-power dissipation
Balanced propagation delays
Multiple package options
ESD protection:
HBM JESD22-A114E exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Specified from 40 Cto+85C and 40 Cto+125C
3. Ordering information
74HC3G34; 74HCT3G34
Triple buffer gate
Rev. 6 — 11 December 2013 Product data sheet
Table 1. Ordering information
Type number Package
Temperature range Name Description Version
74HC3G34DP 40 C to +125 C TSSOP8 plastic thin shrink small outline package; 8 leads;
body width 3 mm; lead length 0.5 mm
SOT505-2
74HCT3G34DP
74HC3G34DC 40 C to +125 C VSSOP8 plastic very thin shrink small outline package; 8 leads;
body width 2.3 mm
SOT765-1
74HCT3G34DC
74HC3G34GD 40 C to +125 C XSON8 plastic extremely thin small outline package; no leads;
8 terminals; body 3 2 0.5 mm
SOT996-2
74HCT3G34GD
74HC_HCT3G34 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 6 — 11 December 2013 2 of 14
NXP Semiconductors 74HC3G34; 74HCT3G34
Triple buffer gate
4. Marking
[1] The pin 1 indicator is located on the lower left corner of the device, below the marking code.
5. Functional diagram
6. Pinning information
6.1 Pinning
Table 2. Marking
Type number Marking code
[1]
74HC3G34DP H34
74HCT3G34DP T34
74HC3G34DC P34
74HCT3G34DC U34
74HC3G34GD P34
74HCT3G34GD U34
Fig 1. Logic symbol Fig 2. IEC logic symbol
mna744
1A 1Y17
3Y 3A26
2A 2Y35
7
1
1
1
5
3
mna745
1
2
6
Fig 3. Pin configuration SOT505-2 (TSSOP8) and
SOT765-1 (VSSOP8)
Fig 4. Pin configuration SOT996-2 (XSON8)
1A V
CC
3Y 1Y
2A 3A
GND 2Y
001aae470
1
2
3
4
6
5
8
7
74HC3G34
74HCT3G34
001aak021
74HC3G34
74HCT3G34
Transparent top view
8
7
6
5
1
2
3
4
1A
3Y
2A
GND
V
CC
1Y
3A
2Y

74HC3G34DP,125

Mfr. #:
Manufacturer:
Nexperia
Description:
Buffers & Line Drivers 5V TRIPLE BUF GATE
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union