Ordering Information
Reset Threshold LM809 Supplied as 1000 LM809 Supplied as 3000
Package
Top Mark
S8B
Package
Type
(V)
units, tape & reel
LM809M3-4.63
LM809M3-4.38
LM809M3-4.00
LM809M3-3.08
LM809M3-2.93
LM809M3-2.63
LM809M3-2.45
units, tape & reel
LM809M3X-4.63
LM809M3X-4.38
LM809M3X-4.00
LM809M3X-3.08
LM809M3X-2.93
LM809M3X-2.63
LM809M3X-2.45
NSC Package
4.63
4.38
4.00
3.08
2.93
2.63
2.45
S7B
S6B
S5B
SOT23-3
M03B
S4B
S3B
SFB
Reset Threshold LM810 Supplied as 1000 LM810 Supplied as 3000
Package
Top Mark
SEB
Package
Type
(V)
units, tape & reel
LM810M3-4.63
LM810M3-4.38
LM810M3-4.00
LM810M3-3.08
LM810M3-2.93
LM810M3-2.63
units, tape & reel
LM810M3X-4.63
LM810M3X-4.38
LM810M3X-4.00
LM810M3X-3.08
LM810M3X-2.93
LM810M3X-2.63
NSC Package
4.63
4.38
4.00
3.08
2.93
2.63
SDB
SCB
SOT23-3
M03B
SBB
SAB
S9B
Reset Threshold LM809 Supplied as 1000 LM809 Supplied as 4500
Package
Top Mark
S13
Package
Type
(V)
units, tape & reel
units, tape & reel
NSC Package
2.63
LM809LD-2.63
LM809LDX-2.63
LLP-6
LDB06A
Custom voltages and improved accuracies are available, subject to minimum orders. Contact your local National Semiconductor Sales Office for information.
Pin Descriptions
PIN
NAME
GND
FUNCTION
(LLP)
SOT-23
1
1
Ground reference
Active-low output. RESET remains low while VCC is below the reset threshold,
and for 240ms after VCC rises above the reset threshold.
Active-high output. RESET remains high while VCC is below the reset
threshold, and for 240ms after VCC rises above the reset threshold.
Supply Voltage (+5V, +3.3V, or +3.0V)
RESET (LM809)
3
5
2
3
RESET (LM810)
VCC
www.national.com
2