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Número de pieza | TC74VHC123AF | |
Descripción | DUAL MONOSTABLE MULTIVIBRATOR | |
Fabricantes | Toshiba | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de TC74VHC123AF (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
No Preview Available ! TC74VHC123,221AF/AFN/AFT/AFK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74VHC123AF,TC74VHC123AFN,TC74VHC123AFT,TC74VHC123AFK
TC74VHC221AF,TC74VHC221AFN,TC74VHC221AFT,TC74VHC221AFK
Dual Monostable Multivibrator
TC74VHC123AF/AFN/AFT/AFK Retriggerble
TC74VHC221AF/AFN/AFT/AFK
Non-Retriggerble
Note: xxxFN (JEDEC SOP) is not available in
Japan.
TC74VHC123AF, TC74VHC221AF
The TC74VHC123A/221A are high speed CMOS
MONOSTABLE MULTIVIBRATOR fabricated with silicon gate
C2MOS technology.
There are two trigger inputs, A input (negative edge), and B
input (positive edge). These inputs are valid for a slow rise/fall
time signal (tr = tf = 1 s) as they are schmitt trigger inputs. This
device may also be triggered by using CLR input (positive
edge).
After triggering, the output stays in a MONOSTABLE state for
a time period determined by the external resistor and capacitor
(RX, CX). A low level at the CLR input breaks this state.
Limits for CX and RX are:
External capacitor, CX: No limit
External resistor, RX: VCC = 2.0 V more than 5 kΩ
VCC ≥ 3.0 V more than 1 kΩ
An input protection circuit ensures that 0 to 5.5 V can be
applied to the input pins without regard to the supply voltage.
This device can be used to interface 5 V to 3 V systems and two
supply systems such as battery back up. This circuit prevents
device destruction due to mismatched supply and input voltages.
Features
• High speed: tpd = 8.1 ns (typ.) at VCC = 5 V
• Low power dissipation
Standby state: 4 μA (max) at Ta = 25°C
Active state: 600 μA (max) at Ta = 25°C
• High noise immunity: VNIH = VNIL = 28% VCC (min)
• Power down protection is equipped with all inputs.
• Balanced propagation delays: tpLH ∼− tpHL
• Wide operating voltage range: VCC (opr) = 2 to 5.5 V
• Pin and function compatible with 74HC123A/221A
TC74VHC123AFN, TC74VHC221AFN
TC74VHC123AFT, TC74VHC221AFT
TC74VHC123AFK, TC74VHC221AFK
Weight
SOP16-P-300-1.27A
SOL16-P-150-1.27
TSSOP16-P-0044-0.65A
VSSOP16-P-0030-0.50
: 0.18 g (typ.)
: 0.13 g (typ.)
: 0.06 g (typ.)
: 0.02 g (typ.)
1 2007-10-19
1 page System Diagram
TC74VHC221A
VCC
QP
Vref
L
C1
TC74VHC123,221AF/AFN/AFT/AFK
Vref
C2 H
RX/CX
CX
A
B
QN
CLR
Timing Chart
TC74VHC221A
A
B
CLR
RX/CX
Q
Q
twOUT
DR Q
F/F
CK Q
Q
Q
twOUT
twOUT
VIH
VIL
VIH
VIL
VIH
VIL
VVVCrreeCffHL
GND
VOH
VOL
VOH
VOL
5 2007-10-19
5 Page Package Dimensions
TC74VHC123,221AF/AFN/AFT/AFK
Weight: 0.18 g (typ.)
11 2007-10-19
11 Page |
Páginas | Total 15 Páginas | |
PDF Descargar | [ Datasheet TC74VHC123AF.PDF ] |
Número de pieza | Descripción | Fabricantes |
TC74VHC123AF | DUAL MONOSTABLE MULTIVIBRATOR | Toshiba |
TC74VHC123AFK | DUAL MONOSTABLE MULTIVIBRATOR | Toshiba |
TC74VHC123AFN | DUAL MONOSTABLE MULTIVIBRATOR | Toshiba |
TC74VHC123AFT | DUAL MONOSTABLE MULTIVIBRATOR | Toshiba |
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