Low-Voltage Octal D-Type Latch - Toshiba Semiconductor
Description
TC74LCX373F/FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX373F, TC74LCX373FK
Low-Voltage Octal D-Type Latch with 5-V Tolerant Inputs and Outputs
The TC74LCX373 is a high-performance CMOS octal D-type latch.
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 both inputs and outputs.
This 8 bit D-type latch is controlled by a latch enable input (LE) and an output enable input ( OE ).
When the OE input is high, the eight outputs are in a high-impedance state.
All inputs are equipped with protection circuits against static discharge.
Features
• Low-voltage operation: VCC = 1.
65 V to 3.
6 V • High-speed operation: tpd = 8.
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 • Available in JEITA SOP, VSSOP (US) • Power-down protection provided on all inputs and outputs • Pin and function compatible with the 74 series
(74AC/VHC/HC/F/ALS/LS etc.
) 373 type
TC74LCX373F TC74LCX373FK
Weight SOP20-P-300-1.
27A VSSOP20-P-0030-0.
50
: 0.
22 g ( typ.
) : 0.
03 g ( typ.
)
Note: The Electrical Characteristics of VCC = 1.
8 ± 0.
15 V is only applicable for products which manufactured from January 2009 onward.
© 2018
1
Toshiba Electronic Devices & Storage Corporation
Start of commercial production
1994-10
2018-08-02
Pin Assignment (top view)
IEC Logic Symbol
TC74LCX373F/FK
1 Q0 2 D0 3 D1 4 Q1 5 Q2 6 D2 7 D3 8 Q3 9 GND 10
20 VCC 19 Q7 18 D7 17 D6 16 Q6 15 Q5 14 D5 13 D4 12 Q4 11 LE
1
EN
LE 11
C1
D0 3
1D
D1 4
7 D2
D3 8
D4 13
D5 14
17 D6
18 D7
2
Q0
5
Q1
6 Q2
9
Q3
12 Q4
15 Q5
16 Q6
19 Q7
Truth Table
Inputs
OE
LE
D
H
X
X
L
L
X
L
H
L
L
H
H
Outputs
Z Qn L H
X: Don’t care Z: High impedance Qn: Q outputs are latched at the time when the LE input is taken to a low lo...
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