© 2000 Fairchild Semiconductor Corporation DS006497 www.fairchildsemi.com
December 1986
Revised February 2000
DM7407 Hex Buff
ers w
i
t
h

Hi
gh
V
o
l
t
age Open-Col
l
e
c
tor

Outp
uts
DM7407
Hex Buffers with High Voltage Open-Collector Outputs
General Description
This device contains six independent gates each of which
performs a buffer function. The open-collector outputs
require external pull-up resistors for proper logical opera-
tion.
Pull-Up Resistor Equations
Where: N
1
(I
OH
) = total maximum output high current
for all outputs tied to pull-up resistor
N
2
(I
IH
) = total maximum input high current for
all inputs tied to pull-up resistor
N
3
(I
IL
) = total maximum input low current for
all inputs tied to pull-up resistor

Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram Function Table
Y = A
H = HIGH Logic Level
L = LOW Logic Level
Order Number Package Number Package Description
DM7407M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM7407N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Input Output
AY
LL
HH