DUAL MONOSTABLE MULTIVIBRATORS
D 2-V to 5.5-V VCC Operation D Max tpd of 11 ns at 5 V D Support Mixed-Mode Voltage Operation on
All Ports
D Schmitt-Tri...
Description
D 2-V to 5.5-V VCC Operation D Max tpd of 11 ns at 5 V D Support Mixed-Mode Voltage Operation on
All Ports
D Schmitt-Trigger Circuitry on A, B, and CLR
Inputs for Slow Input Transition Rates
D Overriding Clear Terminates Output Pulse D Glitch-Free Power-Up Reset on Outputs
SN54LV221A . . . J OR W PACKAGE SN74LV221A . . . D, DB, DGV, NS, OR PW PACKAGE
(TOP VIEW)
1A 1B 1CLR 1Q 2Q 2Cext 2Rext/Cext GND
1 2 3 4 5 6 7 8
16 VCC 15 1Rext/Cext 14 1Cext 13 1Q
12 2Q
11 2CLR
10 2B
9 2A
SN54LV221A, SN74LV221A DUAL MONOSTABLE MULTIVIBRATORS
WITH SCHMITTĆTRIGGER INPUTS SCLS450G − DECEMBER 1999 − REVISED APRIL 2005
D Ioff Supports Partial-Power-Down Mode
Operation
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A) − 200-V Machine Model (A115-A) − 1000-V Charged-Device Model (C101)
SN54LV221A . . . FK PACKAGE (TOP VIEW)
1B 1A NC VCC 1R ext /C ext
1CLR 1Q NC 2Q
2Cext
3 2 1 20 19 4 18 5 17 6 16 7 15 8 14
9 10 11 12 13
1Cext 1Q NC 2Q 2CLR
2Rext /Cext GND NC 2A 2B
description/ordering information
NC − No internal connection
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE PART NUMBER
TOP-SIDE MARKING
SOIC − D
Tube of 40 Reel of 2500
SN74LV221AD SN74LV221ADR
LV221A
SOP − NS
Reel of 2000 SN74LV221ANSR 74LV221A
−40°C to 85°C
SSOP − DB
Reel of 2000 Tube of 90
SN74LV221ADBR SN74LV221APW
LV221A
TSSOP − PW
Reel of 2000 Reel of 250
SN74LV221APWR SN74LV221APWT
LV221A
TVSOP − DGV Reel of 2000 SN74LV221AD...
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