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TC74LCX74F/FN/FT
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX74F,TC74LCX74FN,TC74LCX74FT
Low-Voltage Dual D-Type Flip-Flop with 5-V Tolerant Inputs and Outputs
The TC74LCX74F/FN/FT is a high-performance CMOS D-type
flip-flop. Designed for use in 3.3-V systems, it achieves
high-speed operation while maintaining the CMOS low power
dissipation.
The device is designed for low-voltage (3.3 V) VCC applications,
but it could be used to interface to 5-V supply environment for
inputs.
The signal level applied to the D input is transferred to Q
output during the positive going transition of the CK pulse. CLR
and PR are independent of the CK and are accomplished by
setting the appropriate input low.
All inputs are equipped with protection circuits against static
discharge.
Note: xxxFN (JEDEC SOP) is not available in
Japan.
TC74LCX74F
TC74LCX74FN
Features
· Low-voltage operation: VCC = 2.0 to 3.6 V
· High-speed operation: tpd = 7.0 ns (max) (VCC = 3.0 to 3.6 V)
· Output current: |IOH|/IOL = 24 mA (min) (VCC = 3.0 V)
· Latch-up performance: ±500 mA
www.DataSheet4U.com· Available in JEDEC SOP, JEITA SOP and TSSOP
TC74LCX74FT
· Power-down protection provided on all inputs and outputs
· Pin and function compatible with the 74 series
(74AC/VHC/HC/F/ALS/LS etc.) 74 type
Weight
SOP14-P-300-1.27: 0.18 g (typ.)
SOL14-P-150-1.27: 0.12 g (typ.)
TSSOP14-P-0044-0.65: 0.06 g (typ.)
DataSheet4 U .com
1 2002-01-11
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AC Test Circuit
Output
Measure
TC74LCX74F/FN/FT
Figure 1
CL = 50 pF
RL = 500 W
AC Waveform
Input
(CK)
Input
(D)
Output
(Q, Q )
tr 2.5 ns tf 2.5 ns
10%
90%
1.5 V
tr 2.5 ns
10%
90%
1.5 V
ts (H)
tf 2.5 ns
tw (H) tw (L)
th (H)
ts (L)
th (L)
1.5 V
wwwtpH.L,DLH ataShtpLHe, HLet4U.com
Figure 2 tpLH, tpHL, tw, ts, th
2.7 V
GND
2.7 V
GND
VOH
VOL
tr 2.5 ns
Input
( CLR , PR ) 10%
90%
1.5 V
Input
(CK)
tr 2.5 ns
10%
trem
90%
1.5 V
2.7 V
GND
Input
( CLR )
2.7 V
GND
Input
( PR )
Output
(Q, Q )
VOH
VOL
Output
(Q, Q )
Figure 3 trem
tw (L)
tw (L)
1.5 V
tpHL, LH
1.5 V
tpHL, LH
Figure 4 tpLH, tpHL
2.7 V
GND
2.7 V
GND
VOH
VOL
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