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NXP Semiconductors - Octal buffer/line driver

Numéro de référence 74HCT244
Description Octal buffer/line driver
Fabricant NXP Semiconductors 
Logo NXP Semiconductors 





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74HCT244 fiche technique
74HC244; 74HCT244
Octal buffer/line driver; 3-state
Rev. 5 — 26 February 2016
Product data sheet
1. General description
The 74HC244; 74HCT244 is an 8-bit buffer/line driver with 3-state outputs. The device
can be used as two 4-bit buffers or one 8-bit buffer. The device features two output
enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE
causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes
that enable the use of current limiting resistors to interface inputs to voltages in excess of
VCC.
2. Features and benefits
Input levels:
For 74HC244: CMOS level
For 74HCT244: TTL level
Octal bus interface
Non-inverting 3-state outputs
Complies with JEDEC standard no. 7 A
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 40 C to +125 C
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range Name
Description
Version
74HC244D
74HCT244D
40 C to +125 C SO20
plastic small outline package; 20 leads;
body width 7.5 mm
SOT163-1
74HC244DB
74HCT244DB
40 C to +125 C SSOP20
plastic shrink small outline package; 20 leads;
body width 5.3 mm
SOT339-1
74HC244PW
74HCT244PW
40 C to +125 C TSSOP20 plastic thin shrink small outline package; 20 leads; SOT360-1
body width 4.4 mm
74HC244BQ
74HCT244BQ
40 C to +125 C
DHVQFN20 plastic dual-in-line compatible thermal enhanced SOT764-1
very thin quad flat package; no leads; 20 terminals;
body 2.5 4.5 0.85 mm

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