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74HC244 Datasheet(PDF) 1 Page - NXP Semiconductors

Part No. 74HC244
Description  Octal buffer/line driver; 3-state
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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74HC244 Datasheet(HTML) 1 Page - NXP Semiconductors

 
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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 Cto +85 C and 40 Cto +125 C
3.
Ordering information
74HC244; 74HCT244
Octal buffer/line driver; 3-state
Rev. 4 — 24 September 2012
Product data sheet
Table 1.
Ordering information
Type number
Package
Temperature range
Name
Description
Version
74HC244N
40 Cto+125 C
DIP20
plastic dual in-line package; 20 leads (300 mil)
SOT146-1
74HCT244N
74HC244D
40 Cto+125 C
SO20
plastic small outline package; 20 leads;
body width 7.5 mm
SOT163-1
74HCT244D
74HC244DB
40 Cto+125 C
SSOP20
plastic shrink small outline package; 20 leads;
body width 5.3 mm
SOT339-1
74HCT244DB
74HC244PW
40 Cto+125 C
TSSOP20
plastic thin shrink small outline package; 20 leads;
body width 4.4 mm
SOT360-1
74HCT244PW
74HC244BQ
40 C to +125 C
DHVQFN20 plastic dual-in-line compatible thermal enhanced
very thin quad flat package; no leads; 20 terminals;
body 2.5
 4.5  0.85 mm
SOT764-1
74HCT244BQ


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