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74ALVCH16374 Schematic ( PDF Datasheet ) - Fairchild Semiconductor

Teilenummer 74ALVCH16374
Beschreibung Low Voltage 16-Bit D-Type Flip-Flop with Bushold
Hersteller Fairchild Semiconductor
Logo Fairchild Semiconductor Logo 




Gesamt 7 Seiten
74ALVCH16374 Datasheet, Funktion
September 2001
Revised February 2002
74ALVCH16374
Low Voltage 16-Bit D-Type Flip-Flop with Bushold
General Description
The ALVCH16374 contains sixteen non-inverting D-type
flip-flops with 3-STATE outputs and is intended for bus ori-
ented applications. The device is byte controlled. A buff-
ered clock (CP) and output enable (OE) are common to
each byte and can be shorted together for full 16-bit opera-
tion.
The ALVCH16374 data inputs include active bushold cir-
cuitry, eliminating the need for external pull-up resistors to
hold unused or floating data inputs at a valid logic level.
The 74ALVCH16374 is designed for low voltage (1.65V to
3.6V) VCC applications with output compatibility up to 3.6V.
The 74ALVCH16374 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing low CMOS power dissipation.
Features
s 1.65V to 3.6V VCC supply operation
s 3.6V tolerant control inputs and outputs
s Bushold on data inputs eliminates the need for external
pull-up/pull-down resistors
s tPD
4.2 ns max for 3.0V to 3.6V VCC
5.3 ns max for 2.3V to 2.7V VCC
7.8 ns max for 1.65V to 1.95V VCC
s Uses patented noise/EMI reduction circuitry
s Latch-up conforms to JEDEC JED78
s ESD performance:
Human body model > 2000V
Machine model > 200V
Ordering Code:
Order Number
Package
Number
Package Descriptions
74ALVCH16374T
(Note 1)
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Note 1: Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbol
© 2002 Fairchild Semiconductor Corporation DS500627
www.fairchildsemi.com






74ALVCH16374 Datasheet, Funktion
AC Loading and Waveforms
TABLE 1. Values for Figure 1
TEST
tPLH, tPHL
tPZL, tPLZ
tPZH, tPHZ
SWITCH
Open
VL
GND
FIGURE 1. AC Test Circuit
TABLE 2. Variable Matrix
(Input Characteristics: f = 1MHz; tr = tf = 2ns; Z0 = 50)
Symbol
Vmi
Vmo
VX
VY
VL
3.3V ± 0.3V
1.5V
1.5V
VOL + 0.3V
VOH 0.3V
6V
VCC
2.7V
2.5V ± 0.2V
1.5V
1.5V
VOL + 0.3V
VOH 0.3V
6V
VCC/2
VCC/2
VOL + 0.15V
VOH 0.15V
VCC*2
1.8V ± 0.15V
VCC/2
VCC/2
VOL + 0.15V
VOH 0.15V
VCC*2
FIGURE 2. Waveform for Inverting and
Non-Inverting Functions
FIGURE 3. 3-STATE Output High Enable and
Disable Times for Low Voltage Logic
FIGURE 4. 3-STATE Output Low Enable and Disable Times for Low Voltage Logic
FIGURE 5. Propagation Delay, Pulse Width and
tREC Waveforms
FIGURE 6. Setup Time, Hold Time and
Recovery Time for Low Voltage Logic
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